-----------------------------------------------------------------------

  WHOLE RECORD REPORT( + ADDENDUM)
  -----------------------------------------------------------------------

+-------------+---------------+-----------+----------+------+--------+
| **MSFC      | **In-Flight   | **C       | *        | *    |        |
| Record      | Anomaly       | ontractor | *JSC#**\ | *KSC |        |
| \#**\       | Number**\     | Report    | \--      | #**\ |        |
| A15370      | STS-56-T-001  | Number**\ |          | \--  |        |
|             |               | T-065PF   |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **Problem   |               |           |          |      |        |
| Title**\    |               |           |          |      |        |
| LOSS OF     |               |           |          |      |        |
| SOFI DURING |               |           |          |      |        |
| ASCENT IS   |               |           |          |      |        |
| CRITICALITY |               |           |          |      |        |
| 1           |               |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **EICN#**\  | **ELEMENT**\  | **Cont    | **       | **   |        |
| \--         | ET            | ractor**\ | FSCM#**\ | FCRI |        |
|             |               | MMMSS     | \--      | T**\ |        |
|             |               |           |          | 1    |        |
+-------------+---------------+-----------+----------+------+--------+
| **HCRIT**\  | **Sys_Lvl**\  | **Misc    |          |      |        |
| \--         | \--           | Codes**\  |          |      |        |
|             |               | A B C D E |          |      |        |
|             |               | F G       |          |      |        |
|             |               | **(X)** H |          |      |        |
|             |               | I J K L M |          |      |        |
|             |               | N O       |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **          | **NO          | *         | **SER    | *    |        |
| HARDWARE**\ | MENCLATURE**\ | *PART#**\ | /LOT#**\ | *MAN |        |
| EIM         | \--           | \--       | \--      | UFAC |        |
|             |               |           |          | TURE |        |
|             |               |           |          | R**\ |        |
|             |               |           |          | \--  |        |
+-------------+---------------+-----------+----------+------+--------+
| **          | **NO          | *         | **SER    | *    |        |
| HARDWARE**\ | MENCLATURE**\ | *PART#**\ | /LOT#**\ | *MAN |        |
| LRU         | \--           | \--       | \--      | UFAC |        |
|             |               |           |          | TURE |        |
|             |               |           |          | R**\ |        |
|             |               |           |          | \--  |        |
+-------------+---------------+-----------+----------+------+--------+
| **          | **NO          | *         | **SER    | *    |        |
| HARDWARE**\ | MENCLATURE**\ | *PART#**\ | /LOT#**\ | *MAN |        |
| NCA         | EXTERNAL TANK | 809010    | ET-54    | UFAC |        |
|             |               | 00000-090 |          | TURE |        |
|             |               |           |          | R**\ |        |
|             |               |           |          | M    |        |
|             |               |           |          | MMSS |        |
+-------------+---------------+-----------+----------+------+--------+
| **Test/O    | **Prevailing  | **F /     | **Fail   | **   |        |
| peration**\ | Condtion**\   | U**\      | Mode**\  | Caus |        |
| F - FLT     | F -           | UC        | MSI -    | e**\ |        |
|             | FUNCTIONAL    |           | IN       | U -  |        |
|             |               |           | SULATION | UNK  |        |
|             |               |           |          | NOWN |        |
+-------------+---------------+-----------+----------+------+--------+
| **System**\ | **Defect**\   | **Ma      | **Work   | **   |        |
| TPS         | DD - DETACH   | terial**\ | Co       | Fail |        |
|             |               | F - INSUL | ntact**\ | Dat  |        |
|             |               |           | K.       | e**\ |        |
|             |               |           | KILLIAN  | 04   |        |
|             |               |           |          | /08/ |        |
|             |               |           |          | 1993 |        |
+-------------+---------------+-----------+----------+------+--------+
| **Received  | **Date        | **FMEA    | **IFA:   | *    |        |
| at MSFC**\  | Isolated**\   | Ref       | Mission  | *Mis |        |
| 04/23/1993  | 04/21/1993    | erence**\ | Phase**\ | sion |        |
|             |               | 5.6.2.1   | \--      | Ela  |        |
|             |               |           |          | psed |        |
|             |               |           |          | Tim  |        |
|             |               |           |          | e**\ |        |
|             |               |           |          | \--  |        |
+-------------+---------------+-----------+----------+------+--------+
| **          |               | **S       |          | **   |        |
| Location**\ |               | ymptom**\ |          | Time |        |
| LAUNCH      |               | MSI -     |          | Cycl |        |
|             |               | I         |          | e**\ |        |
|             |               | NSULATION |          | \--  |        |
+-------------+---------------+-----------+----------+------+--------+
| **          |               |           |          |      |        |
| Effectivity |               |           |          |      |        |
| Text**\     |               |           |          |      |        |
| ET-54       |               |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **Vehicle   |               |           |          |      |        |
| Effectivity |               |           |          |      |        |
| Codes**     |               |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **Vehicle   | **Vehicle     | **Vehicle | *        | *    |        |
| 1**\        | 2**\          | 3**\      | *Vehicle | *Veh |        |
| \--         | \--           | \--       | 4**\     | icle |        |
|             |               |           | \--      | 5**\ |        |
|             |               |           |          | \--  |        |
+-------------+---------------+-----------+----------+------+--------+
| **Mission   |               |           |          |      |        |
| Effectivity |               |           |          |      |        |
| Codes**     |               |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **Mssn 1**\ | **Mssn 2**\   | **Mssn    | **Mssn   | **   |        |
| \--         | \--           | 3**\      | 4**\     | Mssn |        |
|             |               | \--       | \--      | 5**\ |        |
|             |               |           |          | \--  |        |
+-------------+---------------+-----------+----------+------+--------+
| **Estimated |               |           |          |      |        |
| Completion  |               |           |          |      |        |
| Dates**     |               |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **MSFC      | **Contractor  | **LVL 3   | **Remark |      |        |
| Approved    | Req Defer     | Close**\  | /        |      |        |
| Defer Until | Until Date**\ | \--       | A        |      |        |
| Date**\     | \--           |           | ction**\ |      |        |
| \--         |               |           | \--      |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **In        |               |           |          |      |        |
| vestigation |               |           |          |      |        |
| /           |               |           |          |      |        |
| Resolution  |               |           |          |      |        |
| Summary**   |               |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **Last MSFC | **CN RSLV     | **Defer   | **Add    | *    |        |
| Update**\   | SBMT**\       | Date**\   | Date**\  | *R/C |        |
| 12/07/1993  | \--           | 0         | 04       | Code |        |
|             |               | 4/23/1993 | /23/1993 | s**\ |        |
|             |               |           |          | 0 -  |        |
|             |               |           |          | EXPL |        |
|             |               |           |          | \--  |        |
|             |               |           |          | \--  |        |
+-------------+---------------+-----------+----------+------+--------+
| *           |               |           |          |      |        |
| *Assignee** |               |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **Design**\ | **Chief       | **S &     | **Pr     | *    |        |
| C. BRAMON   | Engineer**\   | MA**\     | oject**\ | *Pro |        |
|             | M. PESSIN     | R.        | \--      | ject |        |
|             |               | JACKSON   |          | MG   |        |
|             |               |           |          | R**\ |        |
|             |               |           |          | P.   |        |
|             |               |           |          | CO   |        |
|             |               |           |          | UNTS |        |
+-------------+---------------+-----------+----------+------+--------+
| *           |               |           |          |      |        |
| *Approval** |               |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **Design**\ | **Chief       | **S &     | **Pr     | *    |        |
| C. BRAMON   | Engineer**\   | MA**\     | oject**\ | *Pro |        |
|             | M. PESSIN     | R.        | \--      | ject |        |
|             |               | JACKSON   |          | MG   |        |
|             |               |           |          | R**\ |        |
|             |               |           |          | P.   |        |
|             |               |           |          | CO   |        |
|             |               |           |          | UNTS |        |
+-------------+---------------+-----------+----------+------+--------+
| **PAC       | **PAC Review  | **MSFC    | **S      | *    |        |
| Assignee**\ | Complete**\   | Closure   | tatus**\ | *F/A |        |
| B. HURST    | BH            | Date**\   | E -      | C    |        |
|             |               | 0         | CLOSED-E | ompl |        |
|             |               | 9/22/1993 |          | etio |        |
|             |               |           |          | n**\ |        |
|             |               |           |          | \--  |        |
+-------------+---------------+-----------+----------+------+--------+
| **Problem   | **SEV**\      | **Program | *        | **O  |        |
| Type**\     | \--           | Name**\   | *REVL**\ | PRIN |        |
| \--         |               | \--       | \--      | C**\ |        |
|             |               |           |          | \--  |        |
+-------------+---------------+-----------+----------+------+--------+
| **FUNC      | **Software    | *         |          | **SU | **So   |
| MOD**\      | E             | *Software |          | BTYP | ftware |
| \--         | ffectivity**\ | Fail      |          | E**\ | C      |
|             | \-- \-- \--   | CD**\     |          | \--  | losure |
|             | \-- \--       | \--       |          |      | CD**\  |
|             |               |           |          |      | \--    |
+-------------+---------------+-----------+----------+------+--------+
| **RES       | **Approval    |           |          |      |        |
| PERSON      | Signature     |           |          |      |        |
| L2**\       | L3**\         |           |          |      |        |
| \--         | \--           |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **Related   | **Related     |           |          |      |        |
| Document    | Document      |           |          |      |        |
| Type**\     | ID**\         |           |          |      |        |
| \--         | \--           |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **Related   |               |           |          |      |        |
| Document    |               |           |          |      |        |
| Title**\    |               |           |          |      |        |
| \--         |               |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **Related   | **Related     |           |          |      |        |
| Document    | Document      |           |          |      |        |
| Type**\     | ID**\         |           |          |      |        |
| \--         | \--           |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **Related   |               |           |          |      |        |
| Document    |               |           |          |      |        |
| Title**\    |               |           |          |      |        |
| \--         |               |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **Related   | **Related     |           |          |      |        |
| Document    | Document      |           |          |      |        |
| Type**\     | ID**\         |           |          |      |        |
| \--         | \--           |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **Related   |               |           |          |      |        |
| Document    |               |           |          |      |        |
| Title**\    |               |           |          |      |        |
| \--         |               |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| *           |               |           |          |      |        |
| *Contractor |               |           |          |      |        |
| Status      |               |           |          |      |        |
| Summary**   |               |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **Reliabil  |               |           |          |      |        |
| ity/Quality |               |           |          |      |        |
| Assurance   |               |           |          |      |        |
| Concerns,   |               |           |          |      |        |
| Recomme     |               |           |          |      |        |
| ndations:** |               |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **Problem   |               |           |          |      |        |
| De          |               |           |          |      |        |
| scription** |               |           |          |      |        |
|             |               |           |          |      |        |
| POST        |               |           |          |      |        |
| SEPARATION  |               |           |          |      |        |
| CREW        |               |           |          |      |        |
| PHOTOGRAPHS |               |           |          |      |        |
| SHOW        |               |           |          |      |        |
| MISSING     |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
|             |               |           |          |      |        |
| ACREAGE     |               |           |          |      |        |
| FOAM ON THE |               |           |          |      |        |
| -Z AXIS FOR |               |           |          |      |        |
| THE FLIGHT  |               |           |          |      |        |
| OF          |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
|             |               |           |          |      |        |
| AS          |               |           |          |      |        |
| DOCUMENTED  |               |           |          |      |        |
| ON IFA      |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56-T-001 |               |           |          |      |        |
| DATED APRIL |               |           |          |      |        |
| 21,1993     |               |           |          |      |        |
|             |               |           |          |      |        |
| \*NOTE:     |               |           |          |      |        |
| REVISION    |               |           |          |      |        |
| \"B\"       |               |           |          |      |        |
|             |               |           |          |      |        |
| ADDS        |               |           |          |      |        |
| INFORMATION |               |           |          |      |        |
| TO TASKS I, |               |           |          |      |        |
| II AND III  |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSES CAPS |               |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| *           |               |           |          |      |        |
| *Contractor |               |           |          |      |        |
| Inve        |               |           |          |      |        |
| stigation/R |               |           |          |      |        |
| esolution** |               |           |          |      |        |
|             |               |           |          |      |        |
| GENERAL     |               |           |          |      |        |
|             |               |           |          |      |        |
| THE         |               |           |          |      |        |
| EXTERNAL    |               |           |          |      |        |
| TANK\'S     |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| TPS         |               |           |          |      |        |
| APPLICATION |               |           |          |      |        |
| EFFECTIVE   |               |           |          |      |        |
| ET-51 AND   |               |           |          |      |        |
|             |               |           |          |      |        |
| SUBSEQUENT  |               |           |          |      |        |
| INVOLVES    |               |           |          |      |        |
| THE USE OF  |               |           |          |      |        |
| TWO CPR     |               |           |          |      |        |
| FOAM SPRAY  |               |           |          |      |        |
| GUNS WHICH  |               |           |          |      |        |
| FILL THE    |               |           |          |      |        |
|             |               |           |          |      |        |
| VALLEYS     |               |           |          |      |        |
| BETWEEN THE |               |           |          |      |        |
| STRUCTURAL  |               |           |          |      |        |
| STRINGERS   |               |           |          |      |        |
| AND COVER   |               |           |          |      |        |
| THE         |               |           |          |      |        |
| STRINGERS   |               |           |          |      |        |
| IN A        |               |           |          |      |        |
|             |               |           |          |      |        |
| SINGLE FOAM |               |           |          |      |        |
| SPRAY       |               |           |          |      |        |
|             |               |           |          |      |        |
| THROUGH     |               |           |          |      |        |
| ET-50, THE  |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| HAD TWO     |               |           |          |      |        |
| DIFFERENT   |               |           |          |      |        |
| SOFI        |               |           |          |      |        |
| CON         |               |           |          |      |        |
| FIGURATIONS |               |           |          |      |        |
|             |               |           |          |      |        |
| THE +/-Y    |               |           |          |      |        |
| THRUST      |               |           |          |      |        |
| PANELS AND  |               |           |          |      |        |
| AN AREA OF  |               |           |          |      |        |
| THE +Z      |               |           |          |      |        |
| PANELS HAD  |               |           |          |      |        |
| BX-250      |               |           |          |      |        |
|             |               |           |          |      |        |
| FILLING THE |               |           |          |      |        |
| VALLEY      |               |           |          |      |        |
| BETWEEN THE |               |           |          |      |        |
| STRINGERS   |               |           |          |      |        |
| WITH        |               |           |          |      |        |
| ISOCHEM     |               |           |          |      |        |
| APPLIED     |               |           |          |      |        |
|             |               |           |          |      |        |
| OVER THE    |               |           |          |      |        |
| BX-250. CPR |               |           |          |      |        |
| WAS APPLIED |               |           |          |      |        |
| OVER THE    |               |           |          |      |        |
| BX-250 AND  |               |           |          |      |        |
| ISOCHEM     |               |           |          |      |        |
|             |               |           |          |      |        |
| DURING THE  |               |           |          |      |        |
| SPRAY OF    |               |           |          |      |        |
| THE         |               |           |          |      |        |
| INTERTANK.  |               |           |          |      |        |
| THE FINAL   |               |           |          |      |        |
| TPS         |               |           |          |      |        |
| CO          |               |           |          |      |        |
| NFIGURATION |               |           |          |      |        |
|             |               |           |          |      |        |
| INCLUDES    |               |           |          |      |        |
| TWO-TONE    |               |           |          |      |        |
| AREAS (CPR  |               |           |          |      |        |
| OVER BX)    |               |           |          |      |        |
| AND CPR     |               |           |          |      |        |
| OVER THE    |               |           |          |      |        |
| PRIMED      |               |           |          |      |        |
|             |               |           |          |      |        |
| SUBSTRATE.  |               |           |          |      |        |
| VENT HOLES  |               |           |          |      |        |
| WERE        |               |           |          |      |        |
| DRILLED IN  |               |           |          |      |        |
| THE         |               |           |          |      |        |
| TWO-TONE    |               |           |          |      |        |
| AREAS AT    |               |           |          |      |        |
| KSC         |               |           |          |      |        |
|             |               |           |          |      |        |
| THESE       |               |           |          |      |        |
| EIGHTH      |               |           |          |      |        |
| -OF-AN-INCH |               |           |          |      |        |
| DIAMETER    |               |           |          |      |        |
| HOLES WERE  |               |           |          |      |        |
| LOCATED IN  |               |           |          |      |        |
| THE VALLEYS |               |           |          |      |        |
|             |               |           |          |      |        |
| BETWEEN THE |               |           |          |      |        |
| STRINGERS   |               |           |          |      |        |
| AND         |               |           |          |      |        |
| PENETRATED  |               |           |          |      |        |
| THROUGH THE |               |           |          |      |        |
| CPR/ISOCHEM |               |           |          |      |        |
|             |               |           |          |      |        |
| INTERFACE   |               |           |          |      |        |
| TO ALLOW    |               |           |          |      |        |
| VENTING OF  |               |           |          |      |        |
| ANY         |               |           |          |      |        |
| LOCALIZED   |               |           |          |      |        |
| VOIDS THAT  |               |           |          |      |        |
| MAY EXIST   |               |           |          |      |        |
|             |               |           |          |      |        |
| A TEAM      |               |           |          |      |        |
| CONSISTING  |               |           |          |      |        |
| OF THE      |               |           |          |      |        |
| FOLLOWING   |               |           |          |      |        |
| PERSONNEL   |               |           |          |      |        |
| HAS BEEN    |               |           |          |      |        |
| FORMED TO   |               |           |          |      |        |
|             |               |           |          |      |        |
| ANALYZE THE |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
|             |               |           |          |      |        |
| NAME PHONE  |               |           |          |      |        |
| NO. DEPT.   |               |           |          |      |        |
| O           |               |           |          |      |        |
| RGANIZATION |               |           |          |      |        |
|             |               |           |          |      |        |
| JAVERY,     |               |           |          |      |        |
| MICHAEL     |               |           |          |      |        |
| 7-1530 3680 |               |           |          |      |        |
| PROD. OPS   |               |           |          |      |        |
|             |               |           |          |      |        |
| SIMONEAUX,  |               |           |          |      |        |
| HAL 7-3595  |               |           |          |      |        |
| 3613 PROD.  |               |           |          |      |        |
| OPS         |               |           |          |      |        |
|             |               |           |          |      |        |
| OLIVARIUS,  |               |           |          |      |        |
| LARRY       |               |           |          |      |        |
| 7-1560 3681 |               |           |          |      |        |
| PROD. OPS   |               |           |          |      |        |
|             |               |           |          |      |        |
| COOPER,     |               |           |          |      |        |
| DAVID       |               |           |          |      |        |
| 7-3537 3614 |               |           |          |      |        |
| PROD. OPS   |               |           |          |      |        |
|             |               |           |          |      |        |
| WALLO, MATT |               |           |          |      |        |
| 7-3103 4340 |               |           |          |      |        |
| TECH. OPS   |               |           |          |      |        |
|             |               |           |          |      |        |
| KILLIAN,    |               |           |          |      |        |
| KEN 7-1753  |               |           |          |      |        |
| 3741 REL.   |               |           |          |      |        |
| ASSU        |               |           |          |      |        |
|             |               |           |          |      |        |
| HOLDING, C. |               |           |          |      |        |
| 7-2787 4210 |               |           |          |      |        |
| TECH. OPS   |               |           |          |      |        |
|             |               |           |          |      |        |
| MONTELEPRE, |               |           |          |      |        |
| KEVIN       |               |           |          |      |        |
| 7-2732 4130 |               |           |          |      |        |
| TECH. OPS   |               |           |          |      |        |
|             |               |           |          |      |        |
| PETTIT,     |               |           |          |      |        |
| TERRY       |               |           |          |      |        |
| 7-1256 3725 |               |           |          |      |        |
| QLTY. ASSU  |               |           |          |      |        |
|             |               |           |          |      |        |
| GUSTAFSON,  |               |           |          |      |        |
| SANDRA      |               |           |          |      |        |
| 7-2509 3725 |               |           |          |      |        |
| QLTY. ASSU  |               |           |          |      |        |
|             |               |           |          |      |        |
| URSIN,      |               |           |          |      |        |
| MOLEN       |               |           |          |      |        |
| 7-1558 3681 |               |           |          |      |        |
| PROD. OPS   |               |           |          |      |        |
|             |               |           |          |      |        |
| MCKINSEY,   |               |           |          |      |        |
| JOHN 7-1558 |               |           |          |      |        |
| 3681 PROD.  |               |           |          |      |        |
| OPS         |               |           |          |      |        |
|             |               |           |          |      |        |
| WOOD, TOM   |               |           |          |      |        |
| 7-0122 3731 |               |           |          |      |        |
| SAFETY ENG  |               |           |          |      |        |
|             |               |           |          |      |        |
| SWEET,      |               |           |          |      |        |
| EUGENE      |               |           |          |      |        |
| 7-5154 4110 |               |           |          |      |        |
| TECH. OPS   |               |           |          |      |        |
|             |               |           |          |      |        |
| WHITE, JOHN |               |           |          |      |        |
| 7-2621 NASA |               |           |          |      |        |
|             |               |           |          |      |        |
| REINCKE, C. |               |           |          |      |        |
| 7-2638 NASA |               |           |          |      |        |
|             |               |           |          |      |        |
| TASK I.     |               |           |          |      |        |
| FAILURE     |               |           |          |      |        |
| IN          |               |           |          |      |        |
| VESTIGATION |               |           |          |      |        |
|             |               |           |          |      |        |
| A. PRODUCT  |               |           |          |      |        |
| ASSURANCE   |               |           |          |      |        |
|             |               |           |          |      |        |
| 1\. REVIEW  |               |           |          |      |        |
| THE         |               |           |          |      |        |
| PROCUREMENT |               |           |          |      |        |
| QUALITY     |               |           |          |      |        |
| ACCEPTANCE  |               |           |          |      |        |
| REPORTS FOR |               |           |          |      |        |
| ET-54       |               |           |          |      |        |
|             |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| PANELS FOR  |               |           |          |      |        |
| VENDOR MRB  |               |           |          |      |        |
| NONC        |               |           |          |      |        |
| ONFORMANCES |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| K.          |               |           |          |      |        |
| K           |               |           |          |      |        |
| ILLIAN/3741 |               |           |          |      |        |
| D.          |               |           |          |      |        |
| WE          |               |           |          |      |        |
| STPHAL/3740 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/5/93      |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE REVIEW  |               |           |          |      |        |
| DISCLOSED   |               |           |          |      |        |
| NO VENDOR   |               |           |          |      |        |
| MRB         |               |           |          |      |        |
| NONC        |               |           |          |      |        |
| ONFORMANCES |               |           |          |      |        |
|             |               |           |          |      |        |
| (REF.       |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 6)   |               |           |          |      |        |
|             |               |           |          |      |        |
| \* 2.       |               |           |          |      |        |
| REVIEW THE  |               |           |          |      |        |
| ET-54       |               |           |          |      |        |
| NONC        |               |           |          |      |        |
| ONFORMANCES |               |           |          |      |        |
| THAT EFFECT |               |           |          |      |        |
| THE         |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| FOAM,       |               |           |          |      |        |
|             |               |           |          |      |        |
| LO2 AND LH2 |               |           |          |      |        |
| FLANGE FOAM |               |           |          |      |        |
| CLOSEOUTS.  |               |           |          |      |        |
| REVIEW ALL  |               |           |          |      |        |
| PRIOR TWO   |               |           |          |      |        |
| GUN         |               |           |          |      |        |
|             |               |           |          |      |        |
| SPRAY MRB   |               |           |          |      |        |
| NONC        |               |           |          |      |        |
| ONFORMANCES |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| K.          |               |           |          |      |        |
| K           |               |           |          |      |        |
| ILLIAN/3741 |               |           |          |      |        |
| D.          |               |           |          |      |        |
| WE          |               |           |          |      |        |
| STPHAL/3740 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/7/93      |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE REVIEW  |               |           |          |      |        |
| DISCLOSED   |               |           |          |      |        |
| NO          |               |           |          |      |        |
| SIGNIFICANT |               |           |          |      |        |
| ET-54       |               |           |          |      |        |
| NONC        |               |           |          |      |        |
| ONFORMANCES |               |           |          |      |        |
| OR          |               |           |          |      |        |
|             |               |           |          |      |        |
| PRIOR TWO   |               |           |          |      |        |
| GUN SPRAY   |               |           |          |      |        |
| MRB         |               |           |          |      |        |
| NONCO       |               |           |          |      |        |
| NFORMANCES. |               |           |          |      |        |
| THE ONLY    |               |           |          |      |        |
| POTENTIAL   |               |           |          |      |        |
|             |               |           |          |      |        |
| NON         |               |           |          |      |        |
| CONFORMANCE |               |           |          |      |        |
| IS MARS     |               |           |          |      |        |
| T-85814 -   |               |           |          |      |        |
| CPR         |               |           |          |      |        |
| THICKNESS   |               |           |          |      |        |
| EXCEEDED    |               |           |          |      |        |
| DRAWING     |               |           |          |      |        |
|             |               |           |          |      |        |
| TOLERANCES  |               |           |          |      |        |
| AROUND THE  |               |           |          |      |        |
| INTERTANK.  |               |           |          |      |        |
| IT WAS      |               |           |          |      |        |
| DI          |               |           |          |      |        |
| SPOSITIONED |               |           |          |      |        |
| USE AS IS   |               |           |          |      |        |
|             |               |           |          |      |        |
| (REF.       |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 8)   |               |           |          |      |        |
|             |               |           |          |      |        |
| 3\. REVIEW  |               |           |          |      |        |
| ET-54 KSC   |               |           |          |      |        |
| PROCESSING  |               |           |          |      |        |
| NONC        |               |           |          |      |        |
| ONFORMANCES |               |           |          |      |        |
| FOR ANY     |               |           |          |      |        |
| R           |               |           |          |      |        |
| ELATIONSHIP |               |           |          |      |        |
|             |               |           |          |      |        |
| TO THE      |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| FOAM        |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| K.          |               |           |          |      |        |
| K           |               |           |          |      |        |
| ILLIAN/3741 |               |           |          |      |        |
| D.          |               |           |          |      |        |
| WE          |               |           |          |      |        |
| STPHAL/3740 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/3/93      |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE REVIEW  |               |           |          |      |        |
| DISCLOSED   |               |           |          |      |        |
| NO          |               |           |          |      |        |
| NONC        |               |           |          |      |        |
| ONFORMANCES |               |           |          |      |        |
| THAT EFFECT |               |           |          |      |        |
| THE         |               |           |          |      |        |
|             |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| FOAM. (REF. |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION      |               |           |          |      |        |
|             |               |           |          |      |        |
| ITEM NUMBER |               |           |          |      |        |
| 11)         |               |           |          |      |        |
|             |               |           |          |      |        |
| 4\.         |               |           |          |      |        |
| FABRICATE A |               |           |          |      |        |
| MATRIX      |               |           |          |      |        |
| DEPICTING   |               |           |          |      |        |
| THE         |               |           |          |      |        |
| FLATWISE    |               |           |          |      |        |
| TENSION,    |               |           |          |      |        |
| DENSITY,    |               |           |          |      |        |
|             |               |           |          |      |        |
| THICKNESS,  |               |           |          |      |        |
| AND         |               |           |          |      |        |
| EN          |               |           |          |      |        |
| VIRONMENTAL |               |           |          |      |        |
| DATA FOR    |               |           |          |      |        |
| ETS 51      |               |           |          |      |        |
| THROUGH 57  |               |           |          |      |        |
| TWO         |               |           |          |      |        |
|             |               |           |          |      |        |
| GUN SPRAY   |               |           |          |      |        |
| INTERTANKS  |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| T. PETTIT,  |               |           |          |      |        |
| S.          |               |           |          |      |        |
| GUS         |               |           |          |      |        |
| TAFSON/3725 |               |           |          |      |        |
| P.          |               |           |          |      |        |
| POWELL/3720 |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| K.          |               |           |          |      |        |
| K           |               |           |          |      |        |
| ILLIAN/3741 |               |           |          |      |        |
| D.          |               |           |          |      |        |
| WE          |               |           |          |      |        |
| STPHAL/3740 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/5/93      |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE MATRIX  |               |           |          |      |        |
| HAS BEEN    |               |           |          |      |        |
| GENERATED.  |               |           |          |      |        |
| SEE TASK    |               |           |          |      |        |
| I.D.1 FOR   |               |           |          |      |        |
| RESULTS OF  |               |           |          |      |        |
|             |               |           |          |      |        |
| REVIEW OF   |               |           |          |      |        |
| THIS        |               |           |          |      |        |
| MATRIX.     |               |           |          |      |        |
| (REF.       |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
|             |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 13)  |               |           |          |      |        |
|             |               |           |          |      |        |
| 5\. EXTRACT |               |           |          |      |        |
| TENSILE     |               |           |          |      |        |
| STRENGTH    |               |           |          |      |        |
| AND DENSITY |               |           |          |      |        |
| VALUES FROM |               |           |          |      |        |
| THE         |               |           |          |      |        |
| LABORATORY  |               |           |          |      |        |
|             |               |           |          |      |        |
| REPORTS     |               |           |          |      |        |
| LISTED IN   |               |           |          |      |        |
| ETS 51      |               |           |          |      |        |
| THROUGH 57  |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| TWO GUN     |               |           |          |      |        |
| SPRAY MPPS  |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| T. PETTIT,  |               |           |          |      |        |
| S.          |               |           |          |      |        |
| GUS         |               |           |          |      |        |
| TAFSON/3725 |               |           |          |      |        |
| P.          |               |           |          |      |        |
| POWELL/3720 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/5/93      |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE DATA    |               |           |          |      |        |
| HAS BEEN    |               |           |          |      |        |
| INCLUDED IN |               |           |          |      |        |
| THE MATRIX  |               |           |          |      |        |
| CREATED BY  |               |           |          |      |        |
| TASK I.A.4  |               |           |          |      |        |
|             |               |           |          |      |        |
| ABOVE.      |               |           |          |      |        |
| (REF.       |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
|             |               |           |          |      |        |
| NUMBER 17)  |               |           |          |      |        |
|             |               |           |          |      |        |
| B.          |               |           |          |      |        |
| PRODUCTION  |               |           |          |      |        |
| OPERATIONS  |               |           |          |      |        |
|             |               |           |          |      |        |
| 1.DEVELOP   |               |           |          |      |        |
| BLDG. 114   |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| PROCESS     |               |           |          |      |        |
| FLOW CHART  |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| L.          |               |           |          |      |        |
| OLI         |               |           |          |      |        |
| VARIUS/3681 |               |           |          |      |        |
| M.          |               |           |          |      |        |
| JAVERY/3680 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/5/93      |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE FLOW    |               |           |          |      |        |
| CHART HAS   |               |           |          |      |        |
| BEEN        |               |           |          |      |        |
| PROVIDED    |               |           |          |      |        |
| AND WILL BE |               |           |          |      |        |
| USED DURING |               |           |          |      |        |
| THE         |               |           |          |      |        |
|             |               |           |          |      |        |
| REVIEW PER  |               |           |          |      |        |
| TASK I.D.1. |               |           |          |      |        |
| (REF.       |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
|             |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 1)   |               |           |          |      |        |
|             |               |           |          |      |        |
| 2.REVIEW    |               |           |          |      |        |
| VALIDATION  |               |           |          |      |        |
| AND         |               |           |          |      |        |
| APPLICATION |               |           |          |      |        |
| PROCESS     |               |           |          |      |        |
| HISTORY     |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| D.          |               |           |          |      |        |
| COOPER/3614 |               |           |          |      |        |
| R.          |               |           |          |      |        |
| STONER/3614 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/11/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE TWO GUN |               |           |          |      |        |
| SPRAY       |               |           |          |      |        |
| PROCESS     |               |           |          |      |        |
| DEVELOPMENT |               |           |          |      |        |
| ,           |               |           |          |      |        |
| VALIDATION  |               |           |          |      |        |
| AND         |               |           |          |      |        |
|             |               |           |          |      |        |
| PRODUCTION  |               |           |          |      |        |
| APPLICATION |               |           |          |      |        |
| HISTORY WAS |               |           |          |      |        |
| REVIEWED.   |               |           |          |      |        |
| ALL FLIGHT  |               |           |          |      |        |
| TANKS       |               |           |          |      |        |
|             |               |           |          |      |        |
| WERE        |               |           |          |      |        |
| SPRAYED AT  |               |           |          |      |        |
| THE SAME    |               |           |          |      |        |
| PROCESS     |               |           |          |      |        |
| PARAMETERS, |               |           |          |      |        |
| WITH THE    |               |           |          |      |        |
| EXCEPTION   |               |           |          |      |        |
|             |               |           |          |      |        |
| OF THE LAST |               |           |          |      |        |
| 12\"        |               |           |          |      |        |
| (FORWARD    |               |           |          |      |        |
| END) OF     |               |           |          |      |        |
| ET-54 WHERE |               |           |          |      |        |
| A THICKNESS |               |           |          |      |        |
|             |               |           |          |      |        |
| ADJUSTMENT  |               |           |          |      |        |
| WAS MADE.   |               |           |          |      |        |
| ANALYSIS OF |               |           |          |      |        |
| THE         |               |           |          |      |        |
| PRODUCTION  |               |           |          |      |        |
| SPRAY       |               |           |          |      |        |
|             |               |           |          |      |        |
| E           |               |           |          |      |        |
| NVIRONMENTS |               |           |          |      |        |
| SHOWED THAT |               |           |          |      |        |
| ALL WERE    |               |           |          |      |        |
| WITHIN STP  |               |           |          |      |        |
| R           |               |           |          |      |        |
| EQUIREMENTS |               |           |          |      |        |
| AND         |               |           |          |      |        |
|             |               |           |          |      |        |
| THAT ET-54  |               |           |          |      |        |
| WAS         |               |           |          |      |        |
| NOMINAL.    |               |           |          |      |        |
| REVIEW OF   |               |           |          |      |        |
| THE PROCESS |               |           |          |      |        |
| DATA LED TO |               |           |          |      |        |
|             |               |           |          |      |        |
| ASSIGNMENT  |               |           |          |      |        |
| OF TASKS    |               |           |          |      |        |
| I.B.8,      |               |           |          |      |        |
| I.B.9, AND  |               |           |          |      |        |
| I.B.10.     |               |           |          |      |        |
| (REF.       |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
|             |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 3)   |               |           |          |      |        |
|             |               |           |          |      |        |
| 3.REVIEW    |               |           |          |      |        |
| THE ET-54   |               |           |          |      |        |
| MA          |               |           |          |      |        |
| NUFACTURING |               |           |          |      |        |
| PROCESS     |               |           |          |      |        |
| PLANS THAT  |               |           |          |      |        |
| APPLIED THE |               |           |          |      |        |
|             |               |           |          |      |        |
| FOAM TO THE |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| D.          |               |           |          |      |        |
| COOPER/3614 |               |           |          |      |        |
| R.          |               |           |          |      |        |
| STONER/3614 |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| L.          |               |           |          |      |        |
| OLI         |               |           |          |      |        |
| VARIUS/3681 |               |           |          |      |        |
| M.          |               |           |          |      |        |
| JAVERY/3680 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/12/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE REVIEW  |               |           |          |      |        |
| IS          |               |           |          |      |        |
| COMPLETE.   |               |           |          |      |        |
| NO UNUSUAL  |               |           |          |      |        |
| ITEMS WERE  |               |           |          |      |        |
| NOTED. (REF |               |           |          |      |        |
|             |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 7)   |               |           |          |      |        |
|             |               |           |          |      |        |
| 4.REVIEW    |               |           |          |      |        |
| ET-54       |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| TRA         |               |           |          |      |        |
| NSPORTATION |               |           |          |      |        |
| AND         |               |           |          |      |        |
| HANDLING AT |               |           |          |      |        |
| MAF AND THE |               |           |          |      |        |
|             |               |           |          |      |        |
| SEA STATES  |               |           |          |      |        |
| DURING THE  |               |           |          |      |        |
| BARGE TRIP  |               |           |          |      |        |
| TO KSC      |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| L.          |               |           |          |      |        |
| OLI         |               |           |          |      |        |
| VARIUS/3681 |               |           |          |      |        |
| M.          |               |           |          |      |        |
| JAVERY/3680 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/5/93      |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE REVIEW  |               |           |          |      |        |
| IS          |               |           |          |      |        |
| COMPLETE.   |               |           |          |      |        |
| NO UNUSUAL  |               |           |          |      |        |
| ITEMS WERE  |               |           |          |      |        |
| NOTED. (REF |               |           |          |      |        |
|             |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 12)  |               |           |          |      |        |
|             |               |           |          |      |        |
| 5.ESTABLISH |               |           |          |      |        |
| A LINE OF   |               |           |          |      |        |
| CO          |               |           |          |      |        |
| MMUNICATION |               |           |          |      |        |
| WITH        |               |           |          |      |        |
| KSC-LSS FOR |               |           |          |      |        |
| TEAM        |               |           |          |      |        |
| MEMBERS     |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| M.          |               |           |          |      |        |
| JAVERY/3680 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 4/30/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE POINT   |               |           |          |      |        |
| OF CONTACT  |               |           |          |      |        |
| IS THE      |               |           |          |      |        |
| PRODUCTION  |               |           |          |      |        |
| OPERATIONS  |               |           |          |      |        |
| MSR         |               |           |          |      |        |
|             |               |           |          |      |        |
| REPR        |               |           |          |      |        |
| ESENTATIVE. |               |           |          |      |        |
| (REF.       |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION      |               |           |          |      |        |
|             |               |           |          |      |        |
| ITEM NUMBER |               |           |          |      |        |
| 15)         |               |           |          |      |        |
|             |               |           |          |      |        |
| 6.OBTAIN    |               |           |          |      |        |
| AND REVIEW  |               |           |          |      |        |
| KSC         |               |           |          |      |        |
| T           |               |           |          |      |        |
| EMPERATURES |               |           |          |      |        |
| AND         |               |           |          |      |        |
| RELATIVE    |               |           |          |      |        |
| HUMIDITY    |               |           |          |      |        |
| DURING      |               |           |          |      |        |
|             |               |           |          |      |        |
| THE         |               |           |          |      |        |
| PROCESSING  |               |           |          |      |        |
| OF ET-54    |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| M.          |               |           |          |      |        |
| JAVERY/3680 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/7/93      |               |           |          |      |        |
|             |               |           |          |      |        |
| \* CLOSURE  |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE         |               |           |          |      |        |
| EN          |               |           |          |      |        |
| VIRONMENTAL |               |           |          |      |        |
| DATA WAS    |               |           |          |      |        |
| PROVIDED    |               |           |          |      |        |
| AND WAS     |               |           |          |      |        |
| USED IN     |               |           |          |      |        |
| ANALYSIS OF |               |           |          |      |        |
|             |               |           |          |      |        |
| TASK I.C.2. |               |           |          |      |        |
| (REFERENCE  |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
|             |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 16)  |               |           |          |      |        |
|             |               |           |          |      |        |
| 7.DETERMINE |               |           |          |      |        |
| THE TOTAL   |               |           |          |      |        |
| WEIGHT OF   |               |           |          |      |        |
| THE         |               |           |          |      |        |
| INTERNAL    |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| ACCESS KIT, |               |           |          |      |        |
|             |               |           |          |      |        |
| USED IN     |               |           |          |      |        |
| FINAL       |               |           |          |      |        |
| ASSEMBLY,   |               |           |          |      |        |
| BLDG 420,   |               |           |          |      |        |
| AND THE MOD |               |           |          |      |        |
| CENTER, AND |               |           |          |      |        |
| PROVIDE     |               |           |          |      |        |
|             |               |           |          |      |        |
| IT TO K.    |               |           |          |      |        |
| MONTELEPRE  |               |           |          |      |        |
| FOR         |               |           |          |      |        |
| STRESS/LOAD |               |           |          |      |        |
| ANALYSIS    |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| H.          |               |           |          |      |        |
| SIM         |               |           |          |      |        |
| ONEAUX/3611 |               |           |          |      |        |
| R.          |               |           |          |      |        |
| WEAVER/3611 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/19/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE TOTAL   |               |           |          |      |        |
| WEIGHT OF   |               |           |          |      |        |
| THE ACCESS  |               |           |          |      |        |
| KIT HAS     |               |           |          |      |        |
| BEEN        |               |           |          |      |        |
| PROVIDED TO |               |           |          |      |        |
|             |               |           |          |      |        |
| K.          |               |           |          |      |        |
| MONTELEPRE, |               |           |          |      |        |
| SEE TASK    |               |           |          |      |        |
| I.C.8 FOR   |               |           |          |      |        |
| ANALYSIS.   |               |           |          |      |        |
| (REF.       |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
|             |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 18)  |               |           |          |      |        |
|             |               |           |          |      |        |
| 8.ATTEMPT   |               |           |          |      |        |
| TO LOCATE   |               |           |          |      |        |
| THE ET-54   |               |           |          |      |        |
| DONEX       |               |           |          |      |        |
| CONSOLE     |               |           |          |      |        |
| CHARTS      |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| H.          |               |           |          |      |        |
| SIM         |               |           |          |      |        |
| ONEAUX/3611 |               |           |          |      |        |
| R.          |               |           |          |      |        |
| WEAVER/3611 |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| L.          |               |           |          |      |        |
| OLI         |               |           |          |      |        |
| VARIUS/3681 |               |           |          |      |        |
| M.          |               |           |          |      |        |
| JAVERY/3614 |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| D.          |               |           |          |      |        |
| COOPER/3614 |               |           |          |      |        |
| R.          |               |           |          |      |        |
| STONER/3614 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/20/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| STARTING    |               |           |          |      |        |
| WITH ET-51, |               |           |          |      |        |
| STRIP CHART |               |           |          |      |        |
| RECORDERS   |               |           |          |      |        |
| HAVE BEEN   |               |           |          |      |        |
| USED TO     |               |           |          |      |        |
|             |               |           |          |      |        |
| ASSIST      |               |           |          |      |        |
| SPRAY       |               |           |          |      |        |
| SUPERVISORS |               |           |          |      |        |
| IN          |               |           |          |      |        |
| MONITORING  |               |           |          |      |        |
| FOAM        |               |           |          |      |        |
| PRESSURES,  |               |           |          |      |        |
| FLOW RATES  |               |           |          |      |        |
|             |               |           |          |      |        |
| AND RATIOS. |               |           |          |      |        |
| THE STRIP   |               |           |          |      |        |
| CHART       |               |           |          |      |        |
| RECORDS FOR |               |           |          |      |        |
| ET-51       |               |           |          |      |        |
| THROUGH 58  |               |           |          |      |        |
| WERE NOT    |               |           |          |      |        |
|             |               |           |          |      |        |
| LOCATED.    |               |           |          |      |        |
| THE         |               |           |          |      |        |
| ENGINEER\'S |               |           |          |      |        |
| NOTES ON    |               |           |          |      |        |
| THE SPRAY   |               |           |          |      |        |
| OF ET-54    |               |           |          |      |        |
| INDICATE    |               |           |          |      |        |
| THAT        |               |           |          |      |        |
|             |               |           |          |      |        |
| THE TOWER C |               |           |          |      |        |
| \'DONEX\'   |               |           |          |      |        |
| WAS         |               |           |          |      |        |
| MALF        |               |           |          |      |        |
| UNCTIONING, |               |           |          |      |        |
| CAUSING     |               |           |          |      |        |
| ERRONEOUS   |               |           |          |      |        |
| FLOW        |               |           |          |      |        |
|             |               |           |          |      |        |
| AND RATIO   |               |           |          |      |        |
| DATA TO BE  |               |           |          |      |        |
| RECORDED.   |               |           |          |      |        |
| \"OVERALL   |               |           |          |      |        |
| FLOW DATA   |               |           |          |      |        |
| G           |               |           |          |      |        |
| OOD\"(BASED |               |           |          |      |        |
| ON          |               |           |          |      |        |
|             |               |           |          |      |        |
| OBSERVATION |               |           |          |      |        |
| OF THE      |               |           |          |      |        |
| STRIP       |               |           |          |      |        |
| CHART).     |               |           |          |      |        |
| ANALYSIS OF |               |           |          |      |        |
| THE         |               |           |          |      |        |
| RECORDED    |               |           |          |      |        |
| RATIO       |               |           |          |      |        |
|             |               |           |          |      |        |
| DATA,       |               |           |          |      |        |
| INDICATES   |               |           |          |      |        |
| THAT MOST   |               |           |          |      |        |
| OF THE DATA |               |           |          |      |        |
| WERE        |               |           |          |      |        |
| \'NORMAL\'  |               |           |          |      |        |
| WITH        |               |           |          |      |        |
| FREQUENT    |               |           |          |      |        |
|             |               |           |          |      |        |
| HIGH-RATIO  |               |           |          |      |        |
| \'SPIKES\'. |               |           |          |      |        |
| INDICATING  |               |           |          |      |        |
| THAT THE    |               |           |          |      |        |
| TOWER C     |               |           |          |      |        |
| INST        |               |           |          |      |        |
| RUMENTATION |               |           |          |      |        |
|             |               |           |          |      |        |
| WAS INDEED  |               |           |          |      |        |
| MALF        |               |           |          |      |        |
| UNCTIONING. |               |           |          |      |        |
| THE TOWER A |               |           |          |      |        |
| RATIO       |               |           |          |      |        |
| REPORT WAS  |               |           |          |      |        |
| NORMAL      |               |           |          |      |        |
|             |               |           |          |      |        |
| (REF.       |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 19)  |               |           |          |      |        |
|             |               |           |          |      |        |
| 9           |               |           |          |      |        |
| .COORDINATE |               |           |          |      |        |
| THE         |               |           |          |      |        |
| RESOLUTION  |               |           |          |      |        |
| OF THE      |               |           |          |      |        |
| APPARENT    |               |           |          |      |        |
| TWO GUN     |               |           |          |      |        |
| SPRAY FOAM  |               |           |          |      |        |
|             |               |           |          |      |        |
| OVERLAP     |               |           |          |      |        |
| TIME        |               |           |          |      |        |
| VIOLATION   |               |           |          |      |        |
| WITH THE    |               |           |          |      |        |
| MANAGER OF  |               |           |          |      |        |
| TECHNICAL   |               |           |          |      |        |
| OPERATIONS  |               |           |          |      |        |
|             |               |           |          |      |        |
| MATERIAL    |               |           |          |      |        |
| SCIENCES    |               |           |          |      |        |
| (C. GRAY)   |               |           |          |      |        |
| AND THE     |               |           |          |      |        |
| MANAGER OF  |               |           |          |      |        |
| QUALITY     |               |           |          |      |        |
|             |               |           |          |      |        |
| ENGINEERI   |               |           |          |      |        |
| NG/PLANNING |               |           |          |      |        |
| AND         |               |           |          |      |        |
| RELIABILITY |               |           |          |      |        |
| ASSURANCE   |               |           |          |      |        |
| (D.         |               |           |          |      |        |
| WESTPHAL)   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE STP     |               |           |          |      |        |
| REQUIRES    |               |           |          |      |        |
| THE FOAM    |               |           |          |      |        |
| OVERLAP TO  |               |           |          |      |        |
| BE BETWEEN  |               |           |          |      |        |
| SEVEN AND   |               |           |          |      |        |
|             |               |           |          |      |        |
| TWENTY-ONE  |               |           |          |      |        |
| SECONDS.    |               |           |          |      |        |
| THE TWO GUN |               |           |          |      |        |
| SPRAY TAKES |               |           |          |      |        |
| AS LONG AS  |               |           |          |      |        |
|             |               |           |          |      |        |
| T           |               |           |          |      |        |
| WENTY-SEVEN |               |           |          |      |        |
| SECONDS     |               |           |          |      |        |
| (           |               |           |          |      |        |
| CALCULATED) |               |           |          |      |        |
| TO OVERLAP  |               |           |          |      |        |
| THE         |               |           |          |      |        |
| PREVIOUSLY  |               |           |          |      |        |
|             |               |           |          |      |        |
| SPRAYED     |               |           |          |      |        |
| FOAM. (REF. |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
|             |               |           |          |      |        |
| NUMBER 20)  |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| M.          |               |           |          |      |        |
| JAVERY/3680 |               |           |          |      |        |
|             |               |           |          |      |        |
| ECD:        |               |           |          |      |        |
| 6/23/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| \* CLOSURE  |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE         |               |           |          |      |        |
| T           |               |           |          |      |        |
| WENTY-SEVEN |               |           |          |      |        |
| SECOND      |               |           |          |      |        |
| OVERLAP     |               |           |          |      |        |
| TIME IS     |               |           |          |      |        |
| ACCEPTABLE  |               |           |          |      |        |
| FOR         |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
|             |               |           |          |      |        |
| SOFI        |               |           |          |      |        |
| OPERATIONS. |               |           |          |      |        |
| STP 1512    |               |           |          |      |        |
| WILL BE     |               |           |          |      |        |
| REVISED AT  |               |           |          |      |        |
| ITS NEXT    |               |           |          |      |        |
| UPDATE TO   |               |           |          |      |        |
|             |               |           |          |      |        |
| ALLOW SEVEN |               |           |          |      |        |
| TO          |               |           |          |      |        |
| T           |               |           |          |      |        |
| WENTY-EIGHT |               |           |          |      |        |
| SECOND      |               |           |          |      |        |
| OVERLAP     |               |           |          |      |        |
| TIME FOR    |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
|             |               |           |          |      |        |
| A           |               |           |          |      |        |
| PPLICATIONS |               |           |          |      |        |
| ONLY.       |               |           |          |      |        |
| (REFERENCE  |               |           |          |      |        |
| STS 56/ET   |               |           |          |      |        |
| 54          |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
|             |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 20   |               |           |          |      |        |
| AND         |               |           |          |      |        |
| ENGINEERING |               |           |          |      |        |
| JOB UNIT    |               |           |          |      |        |
| NUMBER      |               |           |          |      |        |
| H34809-745  |               |           |          |      |        |
|             |               |           |          |      |        |
| 10.OBTAIN   |               |           |          |      |        |
| COMBINED    |               |           |          |      |        |
| ENVIRONMENT |               |           |          |      |        |
| TWO GUN     |               |           |          |      |        |
| PANEL SPRAY |               |           |          |      |        |
| PARAMETERS  |               |           |          |      |        |
| AND         |               |           |          |      |        |
|             |               |           |          |      |        |
| VERIFY      |               |           |          |      |        |
| WHETHER THE |               |           |          |      |        |
| COMBINED    |               |           |          |      |        |
| ENVIRONMENT |               |           |          |      |        |
| PANEL,      |               |           |          |      |        |
| SPRAYED IN  |               |           |          |      |        |
| 1985,       |               |           |          |      |        |
|             |               |           |          |      |        |
| WAS         |               |           |          |      |        |
| FABRICATED  |               |           |          |      |        |
| USING THE   |               |           |          |      |        |
| SAME        |               |           |          |      |        |
| PROCESS     |               |           |          |      |        |
| PARAMETERS  |               |           |          |      |        |
| THAT ARE    |               |           |          |      |        |
|             |               |           |          |      |        |
| CURRENTLY   |               |           |          |      |        |
| USED IN     |               |           |          |      |        |
| PRODUCTION  |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| D.          |               |           |          |      |        |
| COOPER/3614 |               |           |          |      |        |
| R.          |               |           |          |      |        |
| STONER/3614 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/23/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| \* CLOSURE  |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| OVERLAP     |               |           |          |      |        |
| TIMES, GUN  |               |           |          |      |        |
| RISE RATE,  |               |           |          |      |        |
| OUTPUT AND  |               |           |          |      |        |
| GUN TO TANK |               |           |          |      |        |
| DISTANCE    |               |           |          |      |        |
| ARE         |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPARABLE  |               |           |          |      |        |
| WITH        |               |           |          |      |        |
| CURRENT     |               |           |          |      |        |
| PRODUCTION  |               |           |          |      |        |
| PARAMETERS. |               |           |          |      |        |
| FOAM        |               |           |          |      |        |
| IMPINGEMENT |               |           |          |      |        |
|             |               |           |          |      |        |
| ANGLES ARE  |               |           |          |      |        |
| SI          |               |           |          |      |        |
| GNIFICANTLY |               |           |          |      |        |
| DIFFERENT   |               |           |          |      |        |
| FROM        |               |           |          |      |        |
| PRODUCTION  |               |           |          |      |        |
|             |               |           |          |      |        |
| TOOL POST   |               |           |          |      |        |
| ANGLES      |               |           |          |      |        |
| IMPINGEMENT |               |           |          |      |        |
| ANGLES      |               |           |          |      |        |
|             |               |           |          |      |        |
| SPRAY GUNS  |               |           |          |      |        |
| LEAD TRAIL  |               |           |          |      |        |
| LEAD TRAIL  |               |           |          |      |        |
|             |               |           |          |      |        |
| PRODUCTION  |               |           |          |      |        |
| 24.5 34     |               |           |          |      |        |
| 60.3 48     |               |           |          |      |        |
|             |               |           |          |      |        |
| PRE         |               |           |          |      |        |
| -VALIDATION |               |           |          |      |        |
| 22 29 59 48 |               |           |          |      |        |
|             |               |           |          |      |        |
| CEP 21 27.5 |               |           |          |      |        |
| 69 62.5     |               |           |          |      |        |
|             |               |           |          |      |        |
| SINCE       |               |           |          |      |        |
| IMPINGEMENT |               |           |          |      |        |
| ANGLES      |               |           |          |      |        |
| AFFECT FOAM |               |           |          |      |        |
| DI          |               |           |          |      |        |
| STRIBUTION, |               |           |          |      |        |
| ONE CAN     |               |           |          |      |        |
| EXPECT      |               |           |          |      |        |
|             |               |           |          |      |        |
| THE         |               |           |          |      |        |
| COMBINED    |               |           |          |      |        |
| ENVIRONMENT |               |           |          |      |        |
| PANEL TO    |               |           |          |      |        |
| HAVE        |               |           |          |      |        |
| THICKER     |               |           |          |      |        |
| FOAM IN THE |               |           |          |      |        |
|             |               |           |          |      |        |
| VALLEYS     |               |           |          |      |        |
| THAN ON     |               |           |          |      |        |
| FLIGHT      |               |           |          |      |        |
| TANKS.      |               |           |          |      |        |
| (REF.       |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
|             |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 21)  |               |           |          |      |        |
|             |               |           |          |      |        |
| C.          |               |           |          |      |        |
| TECHNICAL   |               |           |          |      |        |
| OPERATIONS  |               |           |          |      |        |
|             |               |           |          |      |        |
| 1.REVIEW    |               |           |          |      |        |
| AND PROVIDE |               |           |          |      |        |
| SEPARATE    |               |           |          |      |        |
| PHOTOGRAPHS |               |           |          |      |        |
| OF          |               |           |          |      |        |
| E           |               |           |          |      |        |
| T-54/STS-56 |               |           |          |      |        |
| AND PRIOR   |               |           |          |      |        |
|             |               |           |          |      |        |
| FLIGHTS     |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| M.          |               |           |          |      |        |
| WALLO/4340  |               |           |          |      |        |
| R.          |               |           |          |      |        |
| MEYER/4340  |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/7/93      |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| ALL         |               |           |          |      |        |
| AVAILABLE   |               |           |          |      |        |
| SEPARATION  |               |           |          |      |        |
| PHOTOGRAPHS |               |           |          |      |        |
| WERE        |               |           |          |      |        |
| REVIEWED.   |               |           |          |      |        |
| IMPORTANT   |               |           |          |      |        |
|             |               |           |          |      |        |
| O           |               |           |          |      |        |
| BSERVATIONS |               |           |          |      |        |
| ARE AS      |               |           |          |      |        |
| FOLLOWS:    |               |           |          |      |        |
|             |               |           |          |      |        |
| A. NO SOFI  |               |           |          |      |        |
| DIVOTS WERE |               |           |          |      |        |
| OBSERVED ON |               |           |          |      |        |
| THE -Z AXIS |               |           |          |      |        |
| OR NON-TWO  |               |           |          |      |        |
| TONE        |               |           |          |      |        |
|             |               |           |          |      |        |
| ACREAGE     |               |           |          |      |        |
| AREAS. ALL  |               |           |          |      |        |
| DIVOTS      |               |           |          |      |        |
| OBSERVED ON |               |           |          |      |        |
| THESE TANKS |               |           |          |      |        |
| OCCURRED IN |               |           |          |      |        |
|             |               |           |          |      |        |
| THE TWO     |               |           |          |      |        |
| TONE AREAS  |               |           |          |      |        |
| FOR WHICH   |               |           |          |      |        |
| THE CAUSE   |               |           |          |      |        |
| WAS         |               |           |          |      |        |
| IDENTIFIED  |               |           |          |      |        |
|             |               |           |          |      |        |
| B. ALL TWO  |               |           |          |      |        |
| GUN         |               |           |          |      |        |
| INTERTANKS  |               |           |          |      |        |
| HAVE        |               |           |          |      |        |
| EXHIBITED   |               |           |          |      |        |
| DIVOTS IN   |               |           |          |      |        |
| THE SOFI    |               |           |          |      |        |
|             |               |           |          |      |        |
| ACREAGE ON  |               |           |          |      |        |
| THE +Z TO   |               |           |          |      |        |
| +Y AREA OF  |               |           |          |      |        |
| THE         |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| MAINLY NEAR |               |           |          |      |        |
| THE         |               |           |          |      |        |
|             |               |           |          |      |        |
| BIPOD       |               |           |          |      |        |
| STRUCTURE.  |               |           |          |      |        |
| ONE TWO GUN |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| (ET-55)     |               |           |          |      |        |
| EXHIBITED   |               |           |          |      |        |
| NO          |               |           |          |      |        |
|             |               |           |          |      |        |
| DIVOTS.     |               |           |          |      |        |
| ET-54 WAS   |               |           |          |      |        |
| THE ONLY    |               |           |          |      |        |
| ONE TO      |               |           |          |      |        |
| EXHIBIT -Z  |               |           |          |      |        |
| DIVOTS.     |               |           |          |      |        |
| ET-56       |               |           |          |      |        |
|             |               |           |          |      |        |
| EXHIBITED 1 |               |           |          |      |        |
| SMALL AREA  |               |           |          |      |        |
| ON THE +Z   |               |           |          |      |        |
| AREA AND    |               |           |          |      |        |
| NONE OF THE |               |           |          |      |        |
|             |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
|             |               |           |          |      |        |
| C. NO TWO   |               |           |          |      |        |
| GUN         |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| DIVOTS HAVE |               |           |          |      |        |
| OCCURRED IN |               |           |          |      |        |
| THE THRUST  |               |           |          |      |        |
| PANEL       |               |           |          |      |        |
|             |               |           |          |      |        |
| SECTIONS OF |               |           |          |      |        |
| THE         |               |           |          |      |        |
| INTERTANK.  |               |           |          |      |        |
| (REF.       |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
|             |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 2)   |               |           |          |      |        |
|             |               |           |          |      |        |
| 2.REVIEW    |               |           |          |      |        |
| MISSION     |               |           |          |      |        |
| E           |               |           |          |      |        |
| NVIRONMENTS |               |           |          |      |        |
| (PRELAUNCH  |               |           |          |      |        |
| CONDITIONS, |               |           |          |      |        |
| MISSION     |               |           |          |      |        |
|             |               |           |          |      |        |
| PROFILE,    |               |           |          |      |        |
| AND         |               |           |          |      |        |
| T           |               |           |          |      |        |
| RAJECTORY). |               |           |          |      |        |
| (REF.       |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
|             |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 4)   |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| C.          |               |           |          |      |        |
| H           |               |           |          |      |        |
| OLDING/4210 |               |           |          |      |        |
| J.          |               |           |          |      |        |
| J           |               |           |          |      |        |
| OHNSON/4210 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/24/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| \* CLOSURE  |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| PRE         |               |           |          |      |        |
| LAUNCH -    |               |           |          |      |        |
| COMPARED TO |               |           |          |      |        |
| STS FLIGHT  |               |           |          |      |        |
| EXPERIENCE  |               |           |          |      |        |
| DATABASE    |               |           |          |      |        |
|             |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| APPEARS     |               |           |          |      |        |
| NOMINAL     |               |           |          |      |        |
|             |               |           |          |      |        |
| MISSION     |               |           |          |      |        |
| PROFILE -   |               |           |          |      |        |
| COMPARED TO |               |           |          |      |        |
| STS MISSION |               |           |          |      |        |
| PROFILE     |               |           |          |      |        |
| DATABASE    |               |           |          |      |        |
|             |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| APPEARS     |               |           |          |      |        |
| NOMINAL     |               |           |          |      |        |
|             |               |           |          |      |        |
| MISSION     |               |           |          |      |        |
| EN          |               |           |          |      |        |
| VIRONMENT/T |               |           |          |      |        |
| RAJECTORY - |               |           |          |      |        |
| ACCORDING   |               |           |          |      |        |
| TO POST     |               |           |          |      |        |
| FLIGHT      |               |           |          |      |        |
| REPORTS     |               |           |          |      |        |
|             |               |           |          |      |        |
| A LARGE     |               |           |          |      |        |
| WIND SHEAR  |               |           |          |      |        |
| WAS         |               |           |          |      |        |
| OBSERVED    |               |           |          |      |        |
| BETWEEN 60  |               |           |          |      |        |
| AND 70      |               |           |          |      |        |
| SECONDS     |               |           |          |      |        |
| AFTER       |               |           |          |      |        |
|             |               |           |          |      |        |
| LIFTOFF IN  |               |           |          |      |        |
| THE         |               |           |          |      |        |
| IN-PLANE    |               |           |          |      |        |
| WIND        |               |           |          |      |        |
| COMPONENT.  |               |           |          |      |        |
| THIS WIND   |               |           |          |      |        |
| SHEAR WAS   |               |           |          |      |        |
| THE         |               |           |          |      |        |
|             |               |           |          |      |        |
| LARGEST     |               |           |          |      |        |
| SEEN TO     |               |           |          |      |        |
| DATE OF ALL |               |           |          |      |        |
| DOL WINDS   |               |           |          |      |        |
| IN EITHER   |               |           |          |      |        |
| WIND        |               |           |          |      |        |
| COMPONENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| TO BETTER   |               |           |          |      |        |
| SHOW THIS   |               |           |          |      |        |
| EVENT, THE  |               |           |          |      |        |
| DYNAMIC     |               |           |          |      |        |
| PRESSURE    |               |           |          |      |        |
| TIME ALPHA  |               |           |          |      |        |
| FOR         |               |           |          |      |        |
|             |               |           |          |      |        |
| STS-56 AND  |               |           |          |      |        |
| OTHER       |               |           |          |      |        |
| FLIGHTS     |               |           |          |      |        |
| WITH DIVOTS |               |           |          |      |        |
| WERE        |               |           |          |      |        |
| COMPARED.   |               |           |          |      |        |
| ATTEMPTS TO |               |           |          |      |        |
|             |               |           |          |      |        |
| CORRELATE   |               |           |          |      |        |
| THIS WAS    |               |           |          |      |        |
| U           |               |           |          |      |        |
| NSUCCESSFUL |               |           |          |      |        |
| AND NO      |               |           |          |      |        |
| TREND WAS   |               |           |          |      |        |
| ESTABLISHED |               |           |          |      |        |
|             |               |           |          |      |        |
| OTHER       |               |           |          |      |        |
| REVIEWED    |               |           |          |      |        |
| TRAJECTORY  |               |           |          |      |        |
| PARAMETERS  |               |           |          |      |        |
| WERE        |               |           |          |      |        |
| NOMINAL AND |               |           |          |      |        |
| WITHIN STS  |               |           |          |      |        |
|             |               |           |          |      |        |
| FLIGHT      |               |           |          |      |        |
| EXPERIENCE. |               |           |          |      |        |
| (REFERENCE  |               |           |          |      |        |
| STS 56/ET   |               |           |          |      |        |
| 54          |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
|             |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 4)   |               |           |          |      |        |
|             |               |           |          |      |        |
| 3.REVIEW    |               |           |          |      |        |
| TWO GUN     |               |           |          |      |        |
| SPRAY       |               |           |          |      |        |
| QU          |               |           |          |      |        |
| ALIFICATION |               |           |          |      |        |
| DATA        |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| M.          |               |           |          |      |        |
| WALLO/4340  |               |           |          |      |        |
| R.          |               |           |          |      |        |
| MEYER/4340  |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/28/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE TWO GUN |               |           |          |      |        |
| SPRAY       |               |           |          |      |        |
| QU          |               |           |          |      |        |
| ALIFICATION |               |           |          |      |        |
| EFFORT      |               |           |          |      |        |
| CONSISTED   |               |           |          |      |        |
| OF MSFC/AMT |               |           |          |      |        |
|             |               |           |          |      |        |
| LABORATORY  |               |           |          |      |        |
| SPRAYS, SWT |               |           |          |      |        |
| 7           |               |           |          |      |        |
| CONFIDENCE  |               |           |          |      |        |
| SPRAYS,     |               |           |          |      |        |
| COMBINED    |               |           |          |      |        |
| ENVIRONMENT |               |           |          |      |        |
|             |               |           |          |      |        |
| PANEL       |               |           |          |      |        |
| TESTING,    |               |           |          |      |        |
| WIND TUNNEL |               |           |          |      |        |
| TESTING AND |               |           |          |      |        |
| MATERIAL    |               |           |          |      |        |
| PROPERTY    |               |           |          |      |        |
| TESTING     |               |           |          |      |        |
|             |               |           |          |      |        |
| A           |               |           |          |      |        |
| CCOMPLISHED |               |           |          |      |        |
| DURING      |               |           |          |      |        |
| CELLS G AND |               |           |          |      |        |
| H           |               |           |          |      |        |
| VALIDATION  |               |           |          |      |        |
| SPRAYS. THE |               |           |          |      |        |
| TESTING     |               |           |          |      |        |
|             |               |           |          |      |        |
| ENCOMPASSED |               |           |          |      |        |
| THE         |               |           |          |      |        |
| CRYOGENIC,  |               |           |          |      |        |
| ELEVATED    |               |           |          |      |        |
| T           |               |           |          |      |        |
| EMPERATURE, |               |           |          |      |        |
| FLIGHT      |               |           |          |      |        |
| LOADING,    |               |           |          |      |        |
|             |               |           |          |      |        |
| ACOUSTIC    |               |           |          |      |        |
| AND         |               |           |          |      |        |
| AEROTHERMAL |               |           |          |      |        |
| E           |               |           |          |      |        |
| NVIRONMENTS |               |           |          |      |        |
| THAT THE    |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| SOFI WAS    |               |           |          |      |        |
|             |               |           |          |      |        |
| EXPECTED TO |               |           |          |      |        |
| EXPERIENCE. |               |           |          |      |        |
| TEST        |               |           |          |      |        |
| RESULTS     |               |           |          |      |        |
| APPEAR TO   |               |           |          |      |        |
| BE WITHIN   |               |           |          |      |        |
| THE         |               |           |          |      |        |
|             |               |           |          |      |        |
| CPR-488     |               |           |          |      |        |
| DATABASE.   |               |           |          |      |        |
| HARD COPIES |               |           |          |      |        |
| OF ALL TEST |               |           |          |      |        |
| REPORTS AND |               |           |          |      |        |
| DATA HAVE   |               |           |          |      |        |
|             |               |           |          |      |        |
| BEEN        |               |           |          |      |        |
| PROVIDED.   |               |           |          |      |        |
| (REF.       |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
|             |               |           |          |      |        |
| NUMBER 5)   |               |           |          |      |        |
|             |               |           |          |      |        |
| 4.PROVIDE   |               |           |          |      |        |
| AND REVIEW  |               |           |          |      |        |
| THE ORBITER |               |           |          |      |        |
| DAMAGE      |               |           |          |      |        |
| HISTORY FOR |               |           |          |      |        |
| THE TWO AND |               |           |          |      |        |
|             |               |           |          |      |        |
| THREE GUN   |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| CON         |               |           |          |      |        |
| FIGURATIONS |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| M.          |               |           |          |      |        |
| WALLO/4340  |               |           |          |      |        |
| R.          |               |           |          |      |        |
| MEYER/4340  |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/7/93      |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE         |               |           |          |      |        |
| COMPLETE    |               |           |          |      |        |
| ORBITER     |               |           |          |      |        |
| DAMAGE      |               |           |          |      |        |
| HISTORY FOR |               |           |          |      |        |
| ALL STS     |               |           |          |      |        |
| FLIGHTS HAS |               |           |          |      |        |
| BEEN        |               |           |          |      |        |
|             |               |           |          |      |        |
| PROVIDED.   |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| EXHIBITED   |               |           |          |      |        |
| AVERAGE     |               |           |          |      |        |
| DAMAGE      |               |           |          |      |        |
| OCCURRENCE. |               |           |          |      |        |
| (REF        |               |           |          |      |        |
|             |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 9)   |               |           |          |      |        |
|             |               |           |          |      |        |
| 5.REVIEW    |               |           |          |      |        |
| CPR-488     |               |           |          |      |        |
| MATERIAL    |               |           |          |      |        |
| HISTORY FOR |               |           |          |      |        |
| ET-54       |               |           |          |      |        |
| INCLUDING   |               |           |          |      |        |
| ANY         |               |           |          |      |        |
|             |               |           |          |      |        |
| FORMULATION |               |           |          |      |        |
| CHANGES     |               |           |          |      |        |
| MADE AND    |               |           |          |      |        |
| REQUALIFIED |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| M.          |               |           |          |      |        |
| WALLO/4340  |               |           |          |      |        |
| R.          |               |           |          |      |        |
| MEYER/4340  |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/7/93      |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE LOT     |               |           |          |      |        |
| NUMBERS OF  |               |           |          |      |        |
| CPR-488     |               |           |          |      |        |
| USED ON     |               |           |          |      |        |
| ET-51       |               |           |          |      |        |
| THROUGH     |               |           |          |      |        |
| ET-57       |               |           |          |      |        |
| INTERTANKS  |               |           |          |      |        |
|             |               |           |          |      |        |
| WERE        |               |           |          |      |        |
| PROVIDED.   |               |           |          |      |        |
| THESE LOTS  |               |           |          |      |        |
| WERE        |               |           |          |      |        |
| M           |               |           |          |      |        |
| ANUFACTURED |               |           |          |      |        |
| AT LAPORTE, |               |           |          |      |        |
| TEXAS       |               |           |          |      |        |
|             |               |           |          |      |        |
| THAT WAS    |               |           |          |      |        |
| REQUALIFIED |               |           |          |      |        |
| IN 1986.    |               |           |          |      |        |
| THESE LOTS  |               |           |          |      |        |
| WERE IN     |               |           |          |      |        |
| NOMINAL     |               |           |          |      |        |
|             |               |           |          |      |        |
| PRODUCTION  |               |           |          |      |        |
| AND STP     |               |           |          |      |        |
| RANGES.     |               |           |          |      |        |
| (REF.       |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
|             |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 10)  |               |           |          |      |        |
|             |               |           |          |      |        |
| 6.REVIEW    |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| STRUCTURAL  |               |           |          |      |        |
| DESIGN      |               |           |          |      |        |
| CHANGES     |               |           |          |      |        |
| WITH D.     |               |           |          |      |        |
| KIRK        |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| E.          |               |           |          |      |        |
| SWEET/4110  |               |           |          |      |        |
| R.          |               |           |          |      |        |
| ROGERS/4110 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/24/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| \* CLOSURE  |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| ENGINEERING |               |           |          |      |        |
| REVIEW FOR  |               |           |          |      |        |
| THE BLOCK 9 |               |           |          |      |        |
| PROJECT AND |               |           |          |      |        |
| DELTA       |               |           |          |      |        |
| FLIGHT      |               |           |          |      |        |
|             |               |           |          |      |        |
| READINESS   |               |           |          |      |        |
| REVIEWS     |               |           |          |      |        |
| (FRRS)      |               |           |          |      |        |
| INDICATE    |               |           |          |      |        |
| ALL         |               |           |          |      |        |
| MO          |               |           |          |      |        |
| DIFICATIONS |               |           |          |      |        |
| WERE BUILD  |               |           |          |      |        |
|             |               |           |          |      |        |
| FLOW        |               |           |          |      |        |
| E           |               |           |          |      |        |
| NHANCEMENTS |               |           |          |      |        |
| OR          |               |           |          |      |        |
| MIN         |               |           |          |      |        |
| OR/ISOLATED |               |           |          |      |        |
| REVISIONS   |               |           |          |      |        |
| WHICH WOULD |               |           |          |      |        |
| HAVE        |               |           |          |      |        |
|             |               |           |          |      |        |
| NO IMPACT   |               |           |          |      |        |
| ON OVERALL  |               |           |          |      |        |
| PERFORMANCE |               |           |          |      |        |
| OF THE ET.  |               |           |          |      |        |
| (REFERENCE  |               |           |          |      |        |
| STS 56/     |               |           |          |      |        |
|             |               |           |          |      |        |
| ET 54       |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 14)  |               |           |          |      |        |
|             |               |           |          |      |        |
| 7.GENERATE  |               |           |          |      |        |
| WORK ORDER  |               |           |          |      |        |
| TO TEST     |               |           |          |      |        |
| FOAM        |               |           |          |      |        |
| REMOVED     |               |           |          |      |        |
| FROM ET-73  |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
|             |               |           |          |      |        |
| STRING      |               |           |          |      |        |
| ER/SIDEWALL |               |           |          |      |        |
| FOR TENSILE |               |           |          |      |        |
| STRENGTH    |               |           |          |      |        |
| PROPERTIES. |               |           |          |      |        |
| THE WORK    |               |           |          |      |        |
| ORDER       |               |           |          |      |        |
|             |               |           |          |      |        |
| WAS WRITTEN |               |           |          |      |        |
| AND         |               |           |          |      |        |
| APPROVED.   |               |           |          |      |        |
| THE TESTS   |               |           |          |      |        |
| ARE IN      |               |           |          |      |        |
| PROGRESS.   |               |           |          |      |        |
| (REF        |               |           |          |      |        |
|             |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 22)  |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| K.          |               |           |          |      |        |
| MONT        |               |           |          |      |        |
| ELEPRE/4130 |               |           |          |      |        |
| G.          |               |           |          |      |        |
| CO          |               |           |          |      |        |
| PELAND/4130 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 6/30/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| \* CLOSURE  |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| WORK ORDER  |               |           |          |      |        |
| NUMBER 1449 |               |           |          |      |        |
| WAS ISSUED  |               |           |          |      |        |
| TO PERFORM  |               |           |          |      |        |
| DENSITY AND |               |           |          |      |        |
| TENSILE     |               |           |          |      |        |
|             |               |           |          |      |        |
| TESTS ON    |               |           |          |      |        |
| THE REMOVED |               |           |          |      |        |
| FOAM. TEST  |               |           |          |      |        |
| RESULTS     |               |           |          |      |        |
| DISCLOSED   |               |           |          |      |        |
| THE AVERAGE |               |           |          |      |        |
|             |               |           |          |      |        |
| TENSILE AND |               |           |          |      |        |
| DENSITY     |               |           |          |      |        |
| DET         |               |           |          |      |        |
| ERMINATIONS |               |           |          |      |        |
| WERE WITHIN |               |           |          |      |        |
| ACCEPTABLE  |               |           |          |      |        |
| LIMITS      |               |           |          |      |        |
|             |               |           |          |      |        |
| (REFERENCE  |               |           |          |      |        |
| STS 5/ET 54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 22)  |               |           |          |      |        |
|             |               |           |          |      |        |
| 8           |               |           |          |      |        |
| .A.EVALUATE |               |           |          |      |        |
| THE MISSION |               |           |          |      |        |
| SPECIFIC    |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| THERMAL     |               |           |          |      |        |
| E           |               |           |          |      |        |
| NVIRONMENTS |               |           |          |      |        |
|             |               |           |          |      |        |
| B.ASSESS    |               |           |          |      |        |
| EFFECTS OF  |               |           |          |      |        |
| THE STS-56  |               |           |          |      |        |
| ABNORMAL    |               |           |          |      |        |
| WIND DATA   |               |           |          |      |        |
|             |               |           |          |      |        |
| C.REVIEW    |               |           |          |      |        |
| WALKING     |               |           |          |      |        |
| LOAD        |               |           |          |      |        |
| LIMITATIONS |               |           |          |      |        |
| ON THE      |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| INTERIOR    |               |           |          |      |        |
| AND         |               |           |          |      |        |
|             |               |           |          |      |        |
| FOAM        |               |           |          |      |        |
| EXTERIOR    |               |           |          |      |        |
|             |               |           |          |      |        |
| D.REVIEW    |               |           |          |      |        |
| THE         |               |           |          |      |        |
| ANALYSIS    |               |           |          |      |        |
| FOR THE     |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| INTERNAL    |               |           |          |      |        |
| HORIZONTAL  |               |           |          |      |        |
| AND         |               |           |          |      |        |
|             |               |           |          |      |        |
| VERTICAL    |               |           |          |      |        |
| ACCESS      |               |           |          |      |        |
| PLATFORMS   |               |           |          |      |        |
|             |               |           |          |      |        |
| E.REVIEW    |               |           |          |      |        |
| STRUCTURAL  |               |           |          |      |        |
| LOADING     |               |           |          |      |        |
| (REF.       |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
|             |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 24)  |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| K.          |               |           |          |      |        |
| MONT        |               |           |          |      |        |
| ELEPRE/4130 |               |           |          |      |        |
| G.          |               |           |          |      |        |
| CO          |               |           |          |      |        |
| PELAND/4130 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 6/30/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| \* CLOSURE  |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| A. THERMAL  |               |           |          |      |        |
| E           |               |           |          |      |        |
| NVIRONMENTS |               |           |          |      |        |
| IN THE      |               |           |          |      |        |
| SUSPECTED   |               |           |          |      |        |
| DIVOTS FOR  |               |           |          |      |        |
| STS-56 WERE |               |           |          |      |        |
|             |               |           |          |      |        |
| NOMINAL AS  |               |           |          |      |        |
| COMPARED TO |               |           |          |      |        |
| PREVIOUS    |               |           |          |      |        |
| FLIGHTS     |               |           |          |      |        |
|             |               |           |          |      |        |
| B. THE      |               |           |          |      |        |
| ABNORMAL    |               |           |          |      |        |
| WIND HAD    |               |           |          |      |        |
| NEGLIGIBLE  |               |           |          |      |        |
| EFFECT ON   |               |           |          |      |        |
| THE LOCAL   |               |           |          |      |        |
| TPS         |               |           |          |      |        |
|             |               |           |          |      |        |
| SURFACE     |               |           |          |      |        |
| PRESSURES   |               |           |          |      |        |
| AND         |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| VENTING.    |               |           |          |      |        |
| OVERALL,    |               |           |          |      |        |
| VENTING     |               |           |          |      |        |
|             |               |           |          |      |        |
| APPEARED TO |               |           |          |      |        |
| BE NOMINAL  |               |           |          |      |        |
| AND WITHIN  |               |           |          |      |        |
| DESIGN      |               |           |          |      |        |
| LIMITS      |               |           |          |      |        |
|             |               |           |          |      |        |
| C.          |               |           |          |      |        |
| PERSONNEL   |               |           |          |      |        |
| WALKING     |               |           |          |      |        |
| LOAD LIMITS |               |           |          |      |        |
| ARE         |               |           |          |      |        |
| CONTROLLED  |               |           |          |      |        |
| BY          |               |           |          |      |        |
| ENGINEERING |               |           |          |      |        |
|             |               |           |          |      |        |
| DRAWING.    |               |           |          |      |        |
| THE SAME    |               |           |          |      |        |
| TYPE OF     |               |           |          |      |        |
| PROTECTIVE  |               |           |          |      |        |
| PAD HAS     |               |           |          |      |        |
| BEEN USED   |               |           |          |      |        |
|             |               |           |          |      |        |
| THROUGH THE |               |           |          |      |        |
| ET PROGRAM. |               |           |          |      |        |
| WALKING ON  |               |           |          |      |        |
| THE ET IS   |               |           |          |      |        |
| REQUIRED TO |               |           |          |      |        |
|             |               |           |          |      |        |
| INSTALL AND |               |           |          |      |        |
| ALIGN THE   |               |           |          |      |        |
| AFT         |               |           |          |      |        |
| CROSSBEAM   |               |           |          |      |        |
| AND BIPOD   |               |           |          |      |        |
| WITH THE    |               |           |          |      |        |
|             |               |           |          |      |        |
| HEAVIEST    |               |           |          |      |        |
| TRAFFIC     |               |           |          |      |        |
| NEAR THE    |               |           |          |      |        |
| BIPOD       |               |           |          |      |        |
|             |               |           |          |      |        |
| D. ANALYSIS |               |           |          |      |        |
| OF THE      |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| ACCESS      |               |           |          |      |        |
| PLATFORMS   |               |           |          |      |        |
| AS PERTAINS |               |           |          |      |        |
| TO TPS      |               |           |          |      |        |
|             |               |           |          |      |        |
| STRESS      |               |           |          |      |        |
| DISCLOSED   |               |           |          |      |        |
| THAT THIS   |               |           |          |      |        |
| I           |               |           |          |      |        |
| NSTALLATION |               |           |          |      |        |
| IS          |               |           |          |      |        |
| CONSIDERED  |               |           |          |      |        |
| TO HAVE     |               |           |          |      |        |
|             |               |           |          |      |        |
| NO EFFECT   |               |           |          |      |        |
| ON THE TPS  |               |           |          |      |        |
| DURING      |               |           |          |      |        |
| FLIGHT.     |               |           |          |      |        |
| (REFERENCE  |               |           |          |      |        |
| STS 56/ET   |               |           |          |      |        |
| 54          |               |           |          |      |        |
|             |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 24)  |               |           |          |      |        |
|             |               |           |          |      |        |
| \* 9.       |               |           |          |      |        |
| REVIEW      |               |           |          |      |        |
| HISTORY OF  |               |           |          |      |        |
| CPR-488     |               |           |          |      |        |
| MATERIAL    |               |           |          |      |        |
| COMPONENT   |               |           |          |      |        |
| TEMPERATURE |               |           |          |      |        |
| AND AGE     |               |           |          |      |        |
|             |               |           |          |      |        |
| IN THE SOFI |               |           |          |      |        |
| SPRAY       |               |           |          |      |        |
| SYSTEM      |               |           |          |      |        |
| LINES       |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| M.          |               |           |          |      |        |
| WALLO/4340  |               |           |          |      |        |
| R.          |               |           |          |      |        |
| MEYER/4340  |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 6/30/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THIS WAS    |               |           |          |      |        |
| THE FIRST   |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| PROCESSED   |               |           |          |      |        |
| IN CELL H   |               |           |          |      |        |
| BY THE      |               |           |          |      |        |
| 2-GUN       |               |           |          |      |        |
|             |               |           |          |      |        |
| SPRAY       |               |           |          |      |        |
| PROCESS.    |               |           |          |      |        |
| THE         |               |           |          |      |        |
| VALIDATION, |               |           |          |      |        |
| IMMEDIATELY |               |           |          |      |        |
| PRECEDING   |               |           |          |      |        |
| THIS SPRAY, |               |           |          |      |        |
|             |               |           |          |      |        |
| REMOVED ALL |               |           |          |      |        |
| OLD FOAM    |               |           |          |      |        |
| FROM THE    |               |           |          |      |        |
| SPRAY       |               |           |          |      |        |
| LINES. THE  |               |           |          |      |        |
| MATERIAL IN |               |           |          |      |        |
| THE         |               |           |          |      |        |
|             |               |           |          |      |        |
| SPRAY LINES |               |           |          |      |        |
| WAS FIVE    |               |           |          |      |        |
| (5) DAY OLD |               |           |          |      |        |
| WHICH IS    |               |           |          |      |        |
| WITHIN      |               |           |          |      |        |
| ENGINEERING |               |           |          |      |        |
|             |               |           |          |      |        |
| SPEC        |               |           |          |      |        |
| IFICATIONS. |               |           |          |      |        |
| (REFERENCE  |               |           |          |      |        |
| STS 56/ET   |               |           |          |      |        |
| 54          |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION      |               |           |          |      |        |
|             |               |           |          |      |        |
| ITEM NUMBER |               |           |          |      |        |
| 25)         |               |           |          |      |        |
|             |               |           |          |      |        |
| \* 10.      |               |           |          |      |        |
| CONSTRUCT   |               |           |          |      |        |
| CAD         |               |           |          |      |        |
| STRUCTURAL  |               |           |          |      |        |
| OVERLAY     |               |           |          |      |        |
| ONTO        |               |           |          |      |        |
| SCANNED ET  |               |           |          |      |        |
| 54          |               |           |          |      |        |
| SEPARATION  |               |           |          |      |        |
|             |               |           |          |      |        |
| PHOTOGRAPH  |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| E.          |               |           |          |      |        |
| SWEET/4110  |               |           |          |      |        |
| R.          |               |           |          |      |        |
| ROGERS/4110 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 5/21/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE         |               |           |          |      |        |
| REQUESTED   |               |           |          |      |        |
| CAD OVERLAY |               |           |          |      |        |
| WAS         |               |           |          |      |        |
| PROVIDED    |               |           |          |      |        |
| IDENTIFYING |               |           |          |      |        |
| DIVOT       |               |           |          |      |        |
|             |               |           |          |      |        |
| LOCATIONS   |               |           |          |      |        |
| COMPARED TO |               |           |          |      |        |
| ET 54       |               |           |          |      |        |
| SEPARATION  |               |           |          |      |        |
| P           |               |           |          |      |        |
| HOTOGRAPHS. |               |           |          |      |        |
| (REFERENCE  |               |           |          |      |        |
|             |               |           |          |      |        |
| STS 56/ET   |               |           |          |      |        |
| 54          |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 26)  |               |           |          |      |        |
|             |               |           |          |      |        |
| \* 11.      |               |           |          |      |        |
| GENERATE    |               |           |          |      |        |
| TEST PLAN   |               |           |          |      |        |
| TO REMOVE   |               |           |          |      |        |
| FOAM FROM   |               |           |          |      |        |
| ETS 71, 72  |               |           |          |      |        |
| AND 73      |               |           |          |      |        |
|             |               |           |          |      |        |
| INTERTANKS. |               |           |          |      |        |
| INSPECT THE |               |           |          |      |        |
| REMOVED     |               |           |          |      |        |
| FOAM AND    |               |           |          |      |        |
| EXPOSED     |               |           |          |      |        |
| EDGE OF     |               |           |          |      |        |
|             |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| FOAM FOR    |               |           |          |      |        |
| VOID        |               |           |          |      |        |
| S/CREVICES. |               |           |          |      |        |
| DETERMINE   |               |           |          |      |        |
| TENSILE     |               |           |          |      |        |
| VALUES OF   |               |           |          |      |        |
|             |               |           |          |      |        |
| REMOVED     |               |           |          |      |        |
| FOAM        |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| M.          |               |           |          |      |        |
| WALLO/4340  |               |           |          |      |        |
| R.          |               |           |          |      |        |
| MEYER/4340  |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE    |               |           |          |      |        |
| 6/10/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| FOAM WAS    |               |           |          |      |        |
| REMOVED     |               |           |          |      |        |
| FROM THE    |               |           |          |      |        |
| INTERTANKS  |               |           |          |      |        |
| AT THREE    |               |           |          |      |        |
| LOCATIONS.  |               |           |          |      |        |
| THE         |               |           |          |      |        |
|             |               |           |          |      |        |
| TENSILE     |               |           |          |      |        |
| VALUES WERE |               |           |          |      |        |
| ACCEPTABLE  |               |           |          |      |        |
| FOR ALL     |               |           |          |      |        |
| REMOVED     |               |           |          |      |        |
| FOAM. A     |               |           |          |      |        |
|             |               |           |          |      |        |
| SUBSURFACE  |               |           |          |      |        |
| VOID WAS    |               |           |          |      |        |
| DISCOVERED  |               |           |          |      |        |
| IN THE CPR  |               |           |          |      |        |
| FOAM ON ET  |               |           |          |      |        |
| 72          |               |           |          |      |        |
|             |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| AT THE      |               |           |          |      |        |
| JUNCTION OF |               |           |          |      |        |
| PANELS      |               |           |          |      |        |
| THREE AND   |               |           |          |      |        |
| FIVE. THIS  |               |           |          |      |        |
| VOID        |               |           |          |      |        |
|             |               |           |          |      |        |
| WAS IN THE  |               |           |          |      |        |
| AREA OF THE |               |           |          |      |        |
| ROLLOVER    |               |           |          |      |        |
| AND         |               |           |          |      |        |
| CREASING.   |               |           |          |      |        |
| (REFERENCE  |               |           |          |      |        |
|             |               |           |          |      |        |
| MA          |               |           |          |      |        |
| NUFACTURING |               |           |          |      |        |
| PROCESS     |               |           |          |      |        |
| PLANS (MPP) |               |           |          |      |        |
| 8097        |               |           |          |      |        |
| 1118413-019 |               |           |          |      |        |
| OOP 1)      |               |           |          |      |        |
|             |               |           |          |      |        |
| D. TOTAL    |               |           |          |      |        |
| TEAM        |               |           |          |      |        |
|             |               |           |          |      |        |
| 1\. COMPARE |               |           |          |      |        |
| ACCEPTANCE  |               |           |          |      |        |
| DATA FROM   |               |           |          |      |        |
| STS-56 WITH |               |           |          |      |        |
| ACCEPTANCE  |               |           |          |      |        |
| DATA FROM   |               |           |          |      |        |
|             |               |           |          |      |        |
| STS-52 AND  |               |           |          |      |        |
| STS-55, NO  |               |           |          |      |        |
| DIVOT       |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| FLIGHTS.    |               |           |          |      |        |
| (REF        |               |           |          |      |        |
|             |               |           |          |      |        |
| S           |               |           |          |      |        |
| TS-56/ET-54 |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 23)  |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| ALL TEAM    |               |           |          |      |        |
| MEMBERS M.  |               |           |          |      |        |
| JAVERY/3680 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 6/28/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| \* CLOSURE  |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| REFERENCE   |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBERS 3   |               |           |          |      |        |
| AND 13, ALL |               |           |          |      |        |
| ACCEPTANCE  |               |           |          |      |        |
| DATA        |               |           |          |      |        |
|             |               |           |          |      |        |
| RELATIVE TO |               |           |          |      |        |
| MATERIAL,   |               |           |          |      |        |
| PROCESS,    |               |           |          |      |        |
| AND         |               |           |          |      |        |
| FINISHED    |               |           |          |      |        |
| PRODUCTS    |               |           |          |      |        |
|             |               |           |          |      |        |
| R           |               |           |          |      |        |
| EQUIREMENTS |               |           |          |      |        |
| HAVE BEEN   |               |           |          |      |        |
| REVIEWED    |               |           |          |      |        |
| AND FOUND   |               |           |          |      |        |
| ACCEPTABLE. |               |           |          |      |        |
| ALL         |               |           |          |      |        |
|             |               |           |          |      |        |
| ENGINEERING |               |           |          |      |        |
| R           |               |           |          |      |        |
| EQUIREMENTS |               |           |          |      |        |
| WERE MET.   |               |           |          |      |        |
| (REFERENCE  |               |           |          |      |        |
| STS 56/ET   |               |           |          |      |        |
| 54          |               |           |          |      |        |
|             |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
| NUMBER 23)  |               |           |          |      |        |
|             |               |           |          |      |        |
| \*          |               |           |          |      |        |
| 2.CONSTRUCT |               |           |          |      |        |
| FAULT TREE  |               |           |          |      |        |
|             |               |           |          |      |        |
| RESP        |               |           |          |      |        |
| ONSIBILITY: |               |           |          |      |        |
| ALL TEAM    |               |           |          |      |        |
| MEMBERS M.  |               |           |          |      |        |
| JAVERY/3680 |               |           |          |      |        |
|             |               |           |          |      |        |
| COMPLETE:   |               |           |          |      |        |
| 6/28/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| STATEMENT   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE FAULT   |               |           |          |      |        |
| TREE WAS    |               |           |          |      |        |
| CONSTRUCTED |               |           |          |      |        |
| AND USED BY |               |           |          |      |        |
| THE TEAM    |               |           |          |      |        |
| DURING      |               |           |          |      |        |
|             |               |           |          |      |        |
| ANALYSIS.   |               |           |          |      |        |
| (REFERENCE  |               |           |          |      |        |
| STS 56/ET   |               |           |          |      |        |
| 54          |               |           |          |      |        |
| IN-FLIGHT   |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
| ACTION ITEM |               |           |          |      |        |
|             |               |           |          |      |        |
| NUMBER 27)  |               |           |          |      |        |
|             |               |           |          |      |        |
| TASK II.    |               |           |          |      |        |
| CORRECTIVE  |               |           |          |      |        |
| ACTION      |               |           |          |      |        |
|             |               |           |          |      |        |
| THERE IS NO |               |           |          |      |        |
| IMMEDIATE   |               |           |          |      |        |
| OR PLANNED  |               |           |          |      |        |
| CORRECTIVE  |               |           |          |      |        |
| ACTION.     |               |           |          |      |        |
| THIS IS AN  |               |           |          |      |        |
|             |               |           |          |      |        |
| EXPLAINED   |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| CAPS,       |               |           |          |      |        |
| DOCUMENTING |               |           |          |      |        |
| AN          |               |           |          |      |        |
| UNEXPLAINED |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
|             |               |           |          |      |        |
| TWO PROCESS |               |           |          |      |        |
| E           |               |           |          |      |        |
| NHANCEMENTS |               |           |          |      |        |
| ARE BEING   |               |           |          |      |        |
| CONSIDERED  |               |           |          |      |        |
|             |               |           |          |      |        |
| 1\.         |               |           |          |      |        |
| STABILIZE   |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| FOAM        |               |           |          |      |        |
| PROCESS BY  |               |           |          |      |        |
| REDUCING    |               |           |          |      |        |
| VARIATIONS  |               |           |          |      |        |
| IN          |               |           |          |      |        |
|             |               |           |          |      |        |
| PRODUCTION  |               |           |          |      |        |
| SPRAY GUNS  |               |           |          |      |        |
| (TEST PLAN  |               |           |          |      |        |
| 3           |               |           |          |      |        |
| 614-93-243) |               |           |          |      |        |
|             |               |           |          |      |        |
| 2\.         |               |           |          |      |        |
| ELIMINATE   |               |           |          |      |        |
| OR REDUCE   |               |           |          |      |        |
| THE         |               |           |          |      |        |
| OCCURRENCE  |               |           |          |      |        |
| OF ROLLOVER |               |           |          |      |        |
| OR          |               |           |          |      |        |
| CREVICING   |               |           |          |      |        |
|             |               |           |          |      |        |
| (SDS        |               |           |          |      |        |
| 3.          |               |           |          |      |        |
| 6.2.7-3307) |               |           |          |      |        |
|             |               |           |          |      |        |
| TASK III.   |               |           |          |      |        |
| CLEARANCE   |               |           |          |      |        |
| OF          |               |           |          |      |        |
| EF          |               |           |          |      |        |
| FECTIVITIES |               |           |          |      |        |
|             |               |           |          |      |        |
| ALL ETS ARE |               |           |          |      |        |
| CLEARED FOR |               |           |          |      |        |
| FLIGHT      |               |           |          |      |        |
|             |               |           |          |      |        |
| BASED ON    |               |           |          |      |        |
| THE         |               |           |          |      |        |
| PREVIOUS    |               |           |          |      |        |
| FLIGHTS OF  |               |           |          |      |        |
| THE SAME    |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| CO          |               |           |          |      |        |
| NFIGURATION |               |           |          |      |        |
|             |               |           |          |      |        |
| THE         |               |           |          |      |        |
| FOLLOWING   |               |           |          |      |        |
| APPLIES:    |               |           |          |      |        |
|             |               |           |          |      |        |
| \- DIVOTS   |               |           |          |      |        |
| ARE WITHIN  |               |           |          |      |        |
| EXPERIENCE  |               |           |          |      |        |
| BASE        |               |           |          |      |        |
|             |               |           |          |      |        |
| \-          |               |           |          |      |        |
| EVALUATION  |               |           |          |      |        |
| OF DIVOTS   |               |           |          |      |        |
| INDICATES   |               |           |          |      |        |
| SHALLOW     |               |           |          |      |        |
| SURFACE     |               |           |          |      |        |
| FOAM LOSS   |               |           |          |      |        |
|             |               |           |          |      |        |
| \-          |               |           |          |      |        |
| PHOTOGRAPHS |               |           |          |      |        |
| DO NOT      |               |           |          |      |        |
| INDICATE    |               |           |          |      |        |
| BOND LINE   |               |           |          |      |        |
| CONCERNS    |               |           |          |      |        |
|             |               |           |          |      |        |
| \- NO       |               |           |          |      |        |
| HEATING     |               |           |          |      |        |
| CONCERN FOR |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
|             |               |           |          |      |        |
| \- ORBITER  |               |           |          |      |        |
| TILE DAMAGE |               |           |          |      |        |
| FOR STS-56  |               |           |          |      |        |
| AND OTHER   |               |           |          |      |        |
| TWO GUN     |               |           |          |      |        |
| SPRAY ETS   |               |           |          |      |        |
|             |               |           |          |      |        |
| IS WITHIN   |               |           |          |      |        |
| FLIGHT      |               |           |          |      |        |
| EXPERIENCE  |               |           |          |      |        |
| BASE        |               |           |          |      |        |
|             |               |           |          |      |        |
| \- STS-42   |               |           |          |      |        |
| IFA         |               |           |          |      |        |
| RESULTED IN |               |           |          |      |        |
| A DETAILED  |               |           |          |      |        |
| REVIEW OF   |               |           |          |      |        |
| SPRAY       |               |           |          |      |        |
| PROCESS     |               |           |          |      |        |
|             |               |           |          |      |        |
| QUA         |               |           |          |      |        |
| LIFICATION, |               |           |          |      |        |
| BUILD AND   |               |           |          |      |        |
| NON         |               |           |          |      |        |
| CONFORMANCE |               |           |          |      |        |
| PAPER FOR   |               |           |          |      |        |
| ETS 51,     |               |           |          |      |        |
|             |               |           |          |      |        |
| 52, AND 53. |               |           |          |      |        |
| NO          |               |           |          |      |        |
| DEFINITIVE  |               |           |          |      |        |
| CAUSE       |               |           |          |      |        |
| IDENTIFIED  |               |           |          |      |        |
|             |               |           |          |      |        |
| NOTE: THIS  |               |           |          |      |        |
| IS ALSO     |               |           |          |      |        |
| DEFERRAL    |               |           |          |      |        |
| RATIONALE   |               |           |          |      |        |
|             |               |           |          |      |        |
| TASK IV.    |               |           |          |      |        |
| CAUSE AND   |               |           |          |      |        |
| CORRECTIVE  |               |           |          |      |        |
| ACTION      |               |           |          |      |        |
| SUMMARY     |               |           |          |      |        |
|             |               |           |          |      |        |
| THIS IS AN  |               |           |          |      |        |
| EXPLAINED   |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| CAPS        |               |           |          |      |        |
|             |               |           |          |      |        |
| FAULT TREE  |               |           |          |      |        |
| ANALYSIS    |               |           |          |      |        |
| WAS USED TO |               |           |          |      |        |
| IDENTIFY    |               |           |          |      |        |
| POSSIBLE    |               |           |          |      |        |
| CAUSES OF   |               |           |          |      |        |
| DIVOTS      |               |           |          |      |        |
|             |               |           |          |      |        |
| THE MAJOR   |               |           |          |      |        |
| AREAS       |               |           |          |      |        |
| INCLUDED IN |               |           |          |      |        |
| THE FAULT   |               |           |          |      |        |
| TREE WERE:  |               |           |          |      |        |
|             |               |           |          |      |        |
| \-          |               |           |          |      |        |
| EXCESSIVE   |               |           |          |      |        |
| FLIGHT      |               |           |          |      |        |
| E           |               |           |          |      |        |
| NVIRONMENTS |               |           |          |      |        |
|             |               |           |          |      |        |
| \-          |               |           |          |      |        |
| MECHANICAL  |               |           |          |      |        |
| DAMAGE      |               |           |          |      |        |
|             |               |           |          |      |        |
| \-          |               |           |          |      |        |
| PROCESSING  |               |           |          |      |        |
| OR ASSEMBLY |               |           |          |      |        |
| ANOMALY     |               |           |          |      |        |
|             |               |           |          |      |        |
| \- OTHER    |               |           |          |      |        |
| CAUSES -    |               |           |          |      |        |
| MATERIAL    |               |           |          |      |        |
| AGE, BSM    |               |           |          |      |        |
| I           |               |           |          |      |        |
| MPINGEMENT, |               |           |          |      |        |
| FLUID SPILL |               |           |          |      |        |
|             |               |           |          |      |        |
| NO CREDIBLE |               |           |          |      |        |
| EVIDENCE    |               |           |          |      |        |
| FOR A CAUSE |               |           |          |      |        |
| WAS FOUND   |               |           |          |      |        |
| IN ANY OF   |               |           |          |      |        |
| THE ABOVE   |               |           |          |      |        |
|             |               |           |          |      |        |
| THE CAUSE   |               |           |          |      |        |
| OF THE      |               |           |          |      |        |
| ANOMALY WAS |               |           |          |      |        |
| NOT         |               |           |          |      |        |
| C           |               |           |          |      |        |
| ONCLUSIVELY |               |           |          |      |        |
| DETERMINED  |               |           |          |      |        |
|             |               |           |          |      |        |
| THERE IS NO |               |           |          |      |        |
| IMMEDIATE   |               |           |          |      |        |
| OR PLANNED  |               |           |          |      |        |
| CORRECTIVE  |               |           |          |      |        |
| ACTION      |               |           |          |      |        |
|             |               |           |          |      |        |
| TWO PROCESS |               |           |          |      |        |
| E           |               |           |          |      |        |
| NHANCEMENTS |               |           |          |      |        |
| ARE BEING   |               |           |          |      |        |
| CONSIDERED  |               |           |          |      |        |
|             |               |           |          |      |        |
| 1.STABILIZE |               |           |          |      |        |
| INTERTANK   |               |           |          |      |        |
| FOAM        |               |           |          |      |        |
| PROCESS BY  |               |           |          |      |        |
| REDUCING    |               |           |          |      |        |
| VARIATIONS  |               |           |          |      |        |
| IN          |               |           |          |      |        |
|             |               |           |          |      |        |
| PRODUCTION  |               |           |          |      |        |
| SPRAY GUNS  |               |           |          |      |        |
| (TEST PLAN  |               |           |          |      |        |
| 3           |               |           |          |      |        |
| 614-93-243) |               |           |          |      |        |
|             |               |           |          |      |        |
| 2.ELIMINATE |               |           |          |      |        |
| OR REDUCE   |               |           |          |      |        |
| THE         |               |           |          |      |        |
| OCCURRENCE  |               |           |          |      |        |
| OF ROLLOVER |               |           |          |      |        |
| OR          |               |           |          |      |        |
| CREVICING   |               |           |          |      |        |
|             |               |           |          |      |        |
| (SDS        |               |           |          |      |        |
| 3           |               |           |          |      |        |
| .6.2.7-3307 |               |           |          |      |        |
|             |               |           |          |      |        |
| THIS IS AN  |               |           |          |      |        |
| EXPLAINED   |               |           |          |      |        |
| CLOSURE     |               |           |          |      |        |
| CAPS        |               |           |          |      |        |
|             |               |           |          |      |        |
| THIS CAPS   |               |           |          |      |        |
| IS CLOSED   |               |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+
| **MSFC      |               |           |          |      |        |
| Response/Co |               |           |          |      |        |
| ncurrence** |               |           |          |      |        |
|             |               |           |          |      |        |
| 4/23/93 -   |               |           |          |      |        |
| DEFERRAL    |               |           |          |      |        |
| RATIONALE:  |               |           |          |      |        |
|             |               |           |          |      |        |
| BASED ON    |               |           |          |      |        |
| THE         |               |           |          |      |        |
| INFORMATION |               |           |          |      |        |
| IN \"TASK   |               |           |          |      |        |
| III.        |               |           |          |      |        |
| CLEARANCE   |               |           |          |      |        |
| OF          |               |           |          |      |        |
| EF          |               |           |          |      |        |
| FECTIVITIES |               |           |          |      |        |
|             |               |           |          |      |        |
| (ABOVE),    |               |           |          |      |        |
| THIS        |               |           |          |      |        |
| PROBLEM IS  |               |           |          |      |        |
| DEFERRED    |               |           |          |      |        |
| FOR THE     |               |           |          |      |        |
| NEXT SIX    |               |           |          |      |        |
| (6) MONTHS  |               |           |          |      |        |
| PER NSTS    |               |           |          |      |        |
|             |               |           |          |      |        |
| 08126,      |               |           |          |      |        |
| REVISION E, |               |           |          |      |        |
| PARAGRAPH   |               |           |          |      |        |
| 3.3.10.1,   |               |           |          |      |        |
| ITEM I      |               |           |          |      |        |
| WHICH       |               |           |          |      |        |
| STATES      |               |           |          |      |        |
| \"THE       |               |           |          |      |        |
| PROBLEM     |               |           |          |      |        |
|             |               |           |          |      |        |
| IS          |               |           |          |      |        |
| APPLICABLE  |               |           |          |      |        |
| TO THE      |               |           |          |      |        |
| FLIGHT(S)   |               |           |          |      |        |
| (SYSTEM IS  |               |           |          |      |        |
| INSTALLED   |               |           |          |      |        |
| OR USED ON  |               |           |          |      |        |
| THE         |               |           |          |      |        |
|             |               |           |          |      |        |
| FLIGHT);    |               |           |          |      |        |
| HOWEVER,    |               |           |          |      |        |
| SSP         |               |           |          |      |        |
| MANAGEMENT  |               |           |          |      |        |
| AGREES THAT |               |           |          |      |        |
| SUFFICIENT  |               |           |          |      |        |
| SUB         |               |           |          |      |        |
| STANTIATING |               |           |          |      |        |
|             |               |           |          |      |        |
| EVIDENCE    |               |           |          |      |        |
| EXISTS THAT |               |           |          |      |        |
| THE         |               |           |          |      |        |
| HARDWA      |               |           |          |      |        |
| RE/SOFTWARE |               |           |          |      |        |
| IN QUESTION |               |           |          |      |        |
| CAN BE      |               |           |          |      |        |
| FLOWN       |               |           |          |      |        |
|             |               |           |          |      |        |
| SAFELY.\"   |               |           |          |      |        |
|             |               |           |          |      |        |
| THIS        |               |           |          |      |        |
| DEFERRAL    |               |           |          |      |        |
| RATIONALE   |               |           |          |      |        |
| WAS BRIEFED |               |           |          |      |        |
| AT THE      |               |           |          |      |        |
| STS-55 L-2  |               |           |          |      |        |
| DAY REVIEW  |               |           |          |      |        |
| ON          |               |           |          |      |        |
|             |               |           |          |      |        |
| 4/22/93     |               |           |          |      |        |
|             |               |           |          |      |        |
| APPROVAL    |               |           |          |      |        |
| \_\         |               |           |          |      |        |
| _\_\_PARKER |               |           |          |      |        |
| V.          |               |           |          |      |        |
| COUNTS\_(   |               |           |          |      |        |
| SIGNED)\_\_ |               |           |          |      |        |
| DA          |               |           |          |      |        |
| TE:\_\_4/23 |               |           |          |      |        |
| /93\_\_\_\_ |               |           |          |      |        |
|             |               |           |          |      |        |
| PARKER      |               |           |          |      |        |
| COUNTS      |               |           |          |      |        |
|             |               |           |          |      |        |
| ET PROJECT  |               |           |          |      |        |
| MANAGER     |               |           |          |      |        |
+-------------+---------------+-----------+----------+------+--------+

  -----------------------------------------------------------------------

  ASSESSMENT ADDENDUM REPORT
  -----------------------------------------------------------------------

  ----------------- ------------------ ---------------- ------------ ----------- ------------
  **MSFC Report#**\ **IFA#**\          **Contractor     **JSC#**\    **KSC#**\   **EICN#**\
  A15370            STS-56-T-001       RPT#**\          \--          \--         \--
                                       T-065PF                                   

  **Asmnt Part#**\  **Asmnt Part       **Asmnt                                   
  80901006000-059   Name**\            Serial/Lot#**\                            
                    EXTERNAL TANK      ET-54                                     

  **HCRIT CD**\     **FCRIT CD**\      **CAUSE CD**\    **FAIL                   
  \--               1                  U - UNKNOWN      MODE**\                  
                                                        MSI -                    
                                                        INSULATION               

  **Asmnt FMEA**\   **Asmnt FM**\      **FMEA CSE**\    **FMEA                   
  5.6.2.1           1                  N/A              SCSE**\                  
                                                        N/A                      

  **Asmnt FMEA**\   **Asmnt FM**\      **FMEA CSE**\    **FMEA                   
  \--               \--                \--              SCSE**\                  
                                                        \--                      

  **Asmnt FMEA**\   **Asmnt FM**\      **FMEA CSE**\    **FMEA                   
  \--               \--                \--              SCSE**\                  
                                                        \--                      

  **Correlated      **Correlated       **Correlated                              
  Part#**\          Part#**\           Part#**\                                  
  \--               \--                \--                                       

  **Associated      **Associated       **Associated                              
  LRU#**\           LRU#**\            LRU#**\                                   
  \--               \--                \--                                       

  **MAJOR DESIGN                                                                 
  CHANGES**                                                                      

  **APRV DATE**\    **DESCRIPTION OF                                             
  \--               CHANGES**\                                                   
                    \--                                                          

  **ASSESSMENT                                                                   
  TEXT**                                                                         
  ----------------- ------------------ ---------------- ------------ ----------- ------------