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

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

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

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

+--------------+---------------+-----------+---------+------+--------+
| **MSFC       | **In-Flight   | **C       | **      | *    |        |
| Record \#**\ | Anomaly       | ontractor | JSC#**\ | *KSC |        |
| A11138       | Number**\     | Report    | \--     | #**\ |        |
|              | \--           | Number**\ |         | \--  |        |
|              |               | S-074     |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Problem    |               |           |         |      |        |
| Title**\     |               |           |         |      |        |
| MANHOLE      |               |           |         |      |        |
| COVER BOLT   |               |           |         |      |        |
| THREADS WERE |               |           |         |      |        |
| DISTORTED ON |               |           |         |      |        |
| LWT 24       |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **EICN#**\   | **ELEMENT**\  | **Cont    | **F     | **   |        |
| \--          | ET            | ractor**\ | SCM#**\ | FCRI |        |
|              |               | MMMSS     | \--     | T**\ |        |
|              |               |           |         | 3    |        |
+--------------+---------------+-----------+---------+------+--------+
| **HCRIT**\   | **Sys_Lvl**\  | **Misc    |         |      |        |
| 1            | N             | Codes**\  |         |      |        |
|              |               | A **(2)** |         |      |        |
|              |               | B **(X)** |         |      |        |
|              |               | C D E     |         |      |        |
|              |               | **(X)** F |         |      |        |
|              |               | G H I J K |         |      |        |
|              |               | L M N O   |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| *            | **NO          | *         | **SER/  | *    |        |
| *HARDWARE**\ | MENCLATURE**\ | *PART#**\ | LOT#**\ | *MAN |        |
| EIM          | ET COMPLETE   | 80        | NOTED   | UFAC |        |
|              |               | 901000000 |         | TURE |        |
|              |               |           |         | R**\ |        |
|              |               |           |         | MMC  |        |
+--------------+---------------+-----------+---------+------+--------+
| *            | **NO          | *         | **SER/  | *    |        |
| *HARDWARE**\ | MENCLATURE**\ | *PART#**\ | LOT#**\ | *MAN |        |
| LRU          | MAN HOLE      | 80        | TBD     | UFAC |        |
|              | COVER         | 911001449 |         | TURE |        |
|              |               |           |         | R**\ |        |
|              |               |           |         | MMC  |        |
+--------------+---------------+-----------+---------+------+--------+
| *            | **NO          | *         | **SER/  | *    |        |
| *HARDWARE**\ | MENCLATURE**\ | *PART#**\ | LOT#**\ | *MAN |        |
| NCA          | BOLT          | 26L2-5H10 | N/A     | UFAC |        |
|              |               |           |         | TURE |        |
|              |               |           |         | R**\ |        |
|              |               |           |         | UNK  |        |
|              |               |           |         | NOWN |        |
+--------------+---------------+-----------+---------+------+--------+
| **Test/      | **Prevailing  | **F /     | **Fail  | **   |        |
| Operation**\ | Condtion**\   | U**\      | Mode**\ | Caus |        |
| L - FLD      | F -           | UC        | UC -    | e**\ |        |
|              | FUNCTIONAL    |           | UNSAT   | M    |        |
|              |               |           |         | AW - |        |
|              |               |           |         | MFG- |        |
|              |               |           |         | ASY- |        |
|              |               |           |         | WORK |        |
+--------------+---------------+-----------+---------+------+--------+
| **System**\  | **Defect**\   | **Ma      | **Work  | **   |        |
| PROPULSION   | MA - ME ADJ   | terial**\ | Con     | Fail |        |
|              |               | L -       | tact**\ | Dat  |        |
|              |               | FASTNR    | C.      | e**\ |        |
|              |               |           | VOGEL   | 12   |        |
|              |               |           |         | /14/ |        |
|              |               |           |         | 1987 |        |
+--------------+---------------+-----------+---------+------+--------+
| **Received   | **Date        | **FMEA    | **IFA:  | *    |        |
| at MSFC**\   | Isolated**\   | Ref       | Mission | *Mis |        |
| 12/21/1987   | \--           | erence**\ | P       | sion |        |
|              |               | 2.10.6.1  | hase**\ | Ela  |        |
|              |               |           | \--     | psed |        |
|              |               |           |         | Tim  |        |
|              |               |           |         | e**\ |        |
|              |               |           |         | \--  |        |
+--------------+---------------+-----------+---------+------+--------+
| *            |               | **S       |         | **   |        |
| *Location**\ |               | ymptom**\ |         | Time |        |
| KSC          |               | UC -      |         | Cycl |        |
|              |               | UNSAT     |         | e**\ |        |
|              |               |           |         | N/A  |        |
+--------------+---------------+-----------+---------+------+--------+
| *            |               |           |         |      |        |
| *Effectivity |               |           |         |      |        |
| Text**\      |               |           |         |      |        |
| LWT 16, 20,  |               |           |         |      |        |
| 21, 22, 24   |               |           |         |      |        |
| AND UP       |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **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   | *       |      |        |
| Approved     | Req Defer     | Close**\  | *Remark |      |        |
| Defer Until  | Until Date**\ | \--       | /       |      |        |
| Date**\      | \--           |           | Ac      |      |        |
| \--          |               |           | tion**\ |      |        |
|              |               |           | \--     |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **I          |               |           |         |      |        |
| nvestigation |               |           |         |      |        |
| / Resolution |               |           |         |      |        |
| Summary**    |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Last MSFC  | **CN RSLV     | **Defer   | **Add   | *    |        |
| Update**\    | SBMT**\       | Date**\   | Date**\ | *R/C |        |
| 09/10/1992   | 03/14/1988    | \--       | 12/     | Code |        |
|              |               |           | 23/1987 | s**\ |        |
|              |               |           |         | 2 -  |        |
|              |               |           |         | MFG  |        |
|              |               |           |         | \--  |        |
|              |               |           |         | \--  |        |
+--------------+---------------+-----------+---------+------+--------+
| **Assignee** |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Design**\  | **Chief       | **S &     | **Pro   | *    |        |
| F. HUNEIDI   | Engineer**\   | MA**\     | ject**\ | *Pro |        |
|              | J. NICHOLS    | R.        | M.      | ject |        |
|              |               | JACKSON   | PESSIN  | MG   |        |
|              |               |           |         | R**\ |        |
|              |               |           |         | P.   |        |
|              |               |           |         | BRID |        |
|              |               |           |         | WELL |        |
+--------------+---------------+-----------+---------+------+--------+
| **Approval** |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Design**\  | **Chief       | **S &     | **Pro   | *    |        |
| F. HUNEIDI   | Engineer**\   | MA**\     | ject**\ | *Pro |        |
|              | J. NICHOLS    | R.        | M.      | ject |        |
|              |               | JACKSON   | PESSIN  | MG   |        |
|              |               |           |         | R**\ |        |
|              |               |           |         | P.   |        |
|              |               |           |         | BRID |        |
|              |               |           |         | WELL |        |
+--------------+---------------+-----------+---------+------+--------+
| **PAC        | **PAC Review  | **MSFC    | **St    | *    |        |
| Assignee**\  | Complete**\   | Closure   | atus**\ | *F/A |        |
| J.EL-IBRAHIM | JE            | Date**\   | C -     | C    |        |
|              |               | 0         | CLOSED  | ompl |        |
|              |               | 4/28/1988 |         | 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 PERSON | **Approval    |           |         |      |        |
| L2**\        | Signature     |           |         |      |        |
| \--          | 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**    |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Reliabi    |               |           |         |      |        |
| lity/Quality |               |           |         |      |        |
| Assurance    |               |           |         |      |        |
| Concerns,    |               |           |         |      |        |
| Recomm       |               |           |         |      |        |
| endations:** |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Problem    |               |           |         |      |        |
| D            |               |           |         |      |        |
| escription** |               |           |         |      |        |
|              |               |           |         |      |        |
| AFTER        |               |           |         |      |        |
| REMOVAL OF   |               |           |         |      |        |
| THE MANHOLE  |               |           |         |      |        |
| COVER BOLTS  |               |           |         |      |        |
| ON LWT-24 TO |               |           |         |      |        |
| PERFORM ECO  |               |           |         |      |        |
|              |               |           |         |      |        |
| SENSOR       |               |           |         |      |        |
| BRACKET      |               |           |         |      |        |
| MO           |               |           |         |      |        |
| DIFICATIONS, |               |           |         |      |        |
| ONE BOLT OUT |               |           |         |      |        |
| OF NINETY    |               |           |         |      |        |
| TWO WAS      |               |           |         |      |        |
| DISCOVERED   |               |           |         |      |        |
|              |               |           |         |      |        |
| TO HAVE A    |               |           |         |      |        |
| MAJOR PART   |               |           |         |      |        |
| OF THE       |               |           |         |      |        |
| THREADS      |               |           |         |      |        |
| DISTORTED.   |               |           |         |      |        |
| IT IS        |               |           |         |      |        |
| SUSPECTED    |               |           |         |      |        |
| THAT         |               |           |         |      |        |
|              |               |           |         |      |        |
| THIS         |               |           |         |      |        |
| CONDITION    |               |           |         |      |        |
| WAS CAUSED   |               |           |         |      |        |
| BY           |               |           |         |      |        |
| INTERFERENCE |               |           |         |      |        |
| WITH THE     |               |           |         |      |        |
| NAFLEX       |               |           |         |      |        |
| INCONEL SEAL |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Contractor |               |           |         |      |        |
| In           |               |           |         |      |        |
| vestigation/ |               |           |         |      |        |
| Resolution** |               |           |         |      |        |
|              |               |           |         |      |        |
| RECURRENCE   |               |           |         |      |        |
| CONTROL:     |               |           |         |      |        |
| M            |               |           |         |      |        |
| ANUFACTURING |               |           |         |      |        |
| PROCESS      |               |           |         |      |        |
| PLANS HAVE   |               |           |         |      |        |
| BEEN REVISED |               |           |         |      |        |
| TO           |               |           |         |      |        |
|              |               |           |         |      |        |
| IMPROVE      |               |           |         |      |        |
| INSTRUCTIONS |               |           |         |      |        |
| ON PROPER    |               |           |         |      |        |
| SEAL         |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| AND USE OF   |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| PINS         |               |           |         |      |        |
|              |               |           |         |      |        |
| AND BOLT     |               |           |         |      |        |
| I            |               |           |         |      |        |
| NSTALLATION. |               |           |         |      |        |
| AND, THE     |               |           |         |      |        |
| DESIGN OF    |               |           |         |      |        |
| THE          |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| PIN WAS      |               |           |         |      |        |
|              |               |           |         |      |        |
| IMPROVED AND |               |           |         |      |        |
| THE NEW      |               |           |         |      |        |
| DESIGN       |               |           |         |      |        |
| FABRICATED   |               |           |         |      |        |
|              |               |           |         |      |        |
| CAUSE OF     |               |           |         |      |        |
| FAILURE:     |               |           |         |      |        |
| IMPROPER     |               |           |         |      |        |
| INSTALLATION |               |           |         |      |        |
| OF THE BOLT  |               |           |         |      |        |
| (POSITION 43 |               |           |         |      |        |
| ON THE       |               |           |         |      |        |
|              |               |           |         |      |        |
| MANHOLE      |               |           |         |      |        |
| COVER). THE  |               |           |         |      |        |
| BOLT THREADS |               |           |         |      |        |
| WERE         |               |           |         |      |        |
| DISTORTED BY |               |           |         |      |        |
| AN           |               |           |         |      |        |
| INTERFERENCE |               |           |         |      |        |
| WITH         |               |           |         |      |        |
|              |               |           |         |      |        |
| THE NAFLEX   |               |           |         |      |        |
| INCONEL SEAL |               |           |         |      |        |
| DURING       |               |           |         |      |        |
| INSTALLATION |               |           |         |      |        |
|              |               |           |         |      |        |
| GENERAL      |               |           |         |      |        |
|              |               |           |         |      |        |
| DURING KSC   |               |           |         |      |        |
| REMOVAL OF   |               |           |         |      |        |
| THE LH2 AFT  |               |           |         |      |        |
| MANHOLE      |               |           |         |      |        |
| COVER ON     |               |           |         |      |        |
| LWT-24, IT   |               |           |         |      |        |
| WAS          |               |           |         |      |        |
|              |               |           |         |      |        |
| OBSERVED     |               |           |         |      |        |
| THAT ONE OF  |               |           |         |      |        |
| THE 92       |               |           |         |      |        |
| ATTACHING    |               |           |         |      |        |
| BOLTS HAD    |               |           |         |      |        |
| ALL THREADS  |               |           |         |      |        |
| DISTORTED    |               |           |         |      |        |
|              |               |           |         |      |        |
| EXCEPT THE   |               |           |         |      |        |
| LEADING      |               |           |         |      |        |
| THREE. KSC   |               |           |         |      |        |
| PERSONNEL    |               |           |         |      |        |
| GENERATED PR |               |           |         |      |        |
| PV6-087153   |               |           |         |      |        |
|              |               |           |         |      |        |
| (ET-31       |               |           |         |      |        |
| -ST-00-0023) |               |           |         |      |        |
| TO DOCUMENT  |               |           |         |      |        |
| THIS         |               |           |         |      |        |
| DISCREPANCY. |               |           |         |      |        |
| EVIDENCE     |               |           |         |      |        |
| SHOWED THAT  |               |           |         |      |        |
|              |               |           |         |      |        |
| THE SLOTTED  |               |           |         |      |        |
| HOLE ON THE  |               |           |         |      |        |
| SEAL         |               |           |         |      |        |
| RECEIVED     |               |           |         |      |        |
| SOME DAMAGE  |               |           |         |      |        |
| WHERE THE    |               |           |         |      |        |
| BOLT WAS     |               |           |         |      |        |
|              |               |           |         |      |        |
| LOCATED      |               |           |         |      |        |
| (POSITION    |               |           |         |      |        |
| 43, -Y       |               |           |         |      |        |
| AXIS). IT    |               |           |         |      |        |
| WAS DECIDED, |               |           |         |      |        |
| AT THAT      |               |           |         |      |        |
| TIME, THAT   |               |           |         |      |        |
|              |               |           |         |      |        |
| FAILURE      |               |           |         |      |        |
| ANALYSIS     |               |           |         |      |        |
| WOULD TAKE   |               |           |         |      |        |
| PLACE AT KSC |               |           |         |      |        |
| WITH SUPPORT |               |           |         |      |        |
| BY MMC, AND  |               |           |         |      |        |
| THAT         |               |           |         |      |        |
|              |               |           |         |      |        |
| MMC WOULD    |               |           |         |      |        |
| DETERMINE    |               |           |         |      |        |
| AND          |               |           |         |      |        |
| IMPLEMENT    |               |           |         |      |        |
| CORRECTIVE   |               |           |         |      |        |
| ACTION. THIS |               |           |         |      |        |
| CAPS SHALL   |               |           |         |      |        |
|              |               |           |         |      |        |
| REPORT THE   |               |           |         |      |        |
| RESULTS OF   |               |           |         |      |        |
| THE FAILURE  |               |           |         |      |        |
| ANALYSIS AND |               |           |         |      |        |
| DOCUMENT THE |               |           |         |      |        |
| CORRECTIVE   |               |           |         |      |        |
|              |               |           |         |      |        |
| ACTIONS      |               |           |         |      |        |
|              |               |           |         |      |        |
| IN           |               |           |         |      |        |
| VESTIGATIONS |               |           |         |      |        |
| TOOK PLACE   |               |           |         |      |        |
| AT MMC TO    |               |           |         |      |        |
| DETERMINE    |               |           |         |      |        |
| THE          |               |           |         |      |        |
| APPROPRIATE  |               |           |         |      |        |
| CORRECTIVE   |               |           |         |      |        |
|              |               |           |         |      |        |
| ACTION. THIS |               |           |         |      |        |
| LED TO THE   |               |           |         |      |        |
| FOLLOWING    |               |           |         |      |        |
| CONCLUSIONS  |               |           |         |      |        |
| WHICH ARE    |               |           |         |      |        |
| ALSO         |               |           |         |      |        |
| DOCUMENTED   |               |           |         |      |        |
|              |               |           |         |      |        |
| IN THE       |               |           |         |      |        |
| RESPONSE TO  |               |           |         |      |        |
| AR NO. K7184 |               |           |         |      |        |
|              |               |           |         |      |        |
| TOLERANCE    |               |           |         |      |        |
| STUDY:       |               |           |         |      |        |
|              |               |           |         |      |        |
| O .003 INCH  |               |           |         |      |        |
| MAXIMUM BOLT |               |           |         |      |        |
| TO SEAL      |               |           |         |      |        |
| INTERFERENCE |               |           |         |      |        |
| AT +/- Y     |               |           |         |      |        |
| AXIS         |               |           |         |      |        |
|              |               |           |         |      |        |
| (PROPER USE  |               |           |         |      |        |
| OF GUIDE     |               |           |         |      |        |
| PINS)        |               |           |         |      |        |
|              |               |           |         |      |        |
| O .064 INCH  |               |           |         |      |        |
| MAXIMUM BOLT |               |           |         |      |        |
| TO SEAL      |               |           |         |      |        |
| INTERFERENCE |               |           |         |      |        |
| AT +/- Y     |               |           |         |      |        |
| AXIS         |               |           |         |      |        |
|              |               |           |         |      |        |
| (IMPROPER    |               |           |         |      |        |
| USE OF GUIDE |               |           |         |      |        |
| PINS)        |               |           |         |      |        |
|              |               |           |         |      |        |
| PROCEDURE    |               |           |         |      |        |
| STUDY:       |               |           |         |      |        |
|              |               |           |         |      |        |
| O PROPER USE |               |           |         |      |        |
| OF THE GUIDE |               |           |         |      |        |
| PINS WOULD   |               |           |         |      |        |
| REQUIRE THAT |               |           |         |      |        |
| THE PINS BE  |               |           |         |      |        |
|              |               |           |         |      |        |
| INSTALLED IN |               |           |         |      |        |
| THE SLOTTED  |               |           |         |      |        |
| HOLES, THAT  |               |           |         |      |        |
| THE SLOTTED  |               |           |         |      |        |
| HOLES BE     |               |           |         |      |        |
|              |               |           |         |      |        |
| ALIGNED WITH |               |           |         |      |        |
| THE +/- Y    |               |           |         |      |        |
| AND +/- Z    |               |           |         |      |        |
| AXIS, AND    |               |           |         |      |        |
| THAT THE     |               |           |         |      |        |
| GUIDE PINS   |               |           |         |      |        |
|              |               |           |         |      |        |
| BE REMOVED   |               |           |         |      |        |
| ONE AT A     |               |           |         |      |        |
| TIME AND A   |               |           |         |      |        |
| BOLT BE      |               |           |         |      |        |
| INSTALLED    |               |           |         |      |        |
| SNUGGLY      |               |           |         |      |        |
| PRIOR        |               |           |         |      |        |
|              |               |           |         |      |        |
| TO REMOVAL   |               |           |         |      |        |
| OF THE NEXT  |               |           |         |      |        |
| GUIDE PIN    |               |           |         |      |        |
|              |               |           |         |      |        |
| O THE        |               |           |         |      |        |
| M            |               |           |         |      |        |
| ANUFACTURING |               |           |         |      |        |
| PROCESS PLAN |               |           |         |      |        |
| (MPP) DID    |               |           |         |      |        |
| NOT          |               |           |         |      |        |
| SPECIFICALLY |               |           |         |      |        |
|              |               |           |         |      |        |
| REQUIRE THE  |               |           |         |      |        |
| PROCEDURES   |               |           |         |      |        |
| DEFINED      |               |           |         |      |        |
| ABOVE        |               |           |         |      |        |
|              |               |           |         |      |        |
| DAMAGED BOLT |               |           |         |      |        |
| STUDY:       |               |           |         |      |        |
|              |               |           |         |      |        |
| O 8300 POUND |               |           |         |      |        |
| PULL         |               |           |         |      |        |
| STRENGTH WAS |               |           |         |      |        |
| ACHIEVED     |               |           |         |      |        |
| WITH DAMAGED |               |           |         |      |        |
| BOLTS HAVING |               |           |         |      |        |
|              |               |           |         |      |        |
| ONLY THREE   |               |           |         |      |        |
| LEADING      |               |           |         |      |        |
| THREADS      |               |           |         |      |        |
| (SIMILAR TO  |               |           |         |      |        |
| LWT-24)      |               |           |         |      |        |
|              |               |           |         |      |        |
| O 8300       |               |           |         |      |        |
| POUNDS IS    |               |           |         |      |        |
| FAR IN       |               |           |         |      |        |
| EXCESS OF    |               |           |         |      |        |
| FLIGHT LOADS |               |           |         |      |        |
|              |               |           |         |      |        |
| DUPLICATION  |               |           |         |      |        |
| OF FAILURE   |               |           |         |      |        |
| STUDY:       |               |           |         |      |        |
|              |               |           |         |      |        |
| O .025 INCH  |               |           |         |      |        |
| MAXIMUM      |               |           |         |      |        |
| INTERFERENCE |               |           |         |      |        |
| FROM BOLT TO |               |           |         |      |        |
| SEAL EDGE    |               |           |         |      |        |
| COULD BE     |               |           |         |      |        |
|              |               |           |         |      |        |
| ACCOMPLISHED |               |           |         |      |        |
| WITH THE     |               |           |         |      |        |
| BOLT ENGAGED |               |           |         |      |        |
| INTO THE     |               |           |         |      |        |
| KEENSERT     |               |           |         |      |        |
|              |               |           |         |      |        |
| O .020 INCH  |               |           |         |      |        |
| INTERFERENCE |               |           |         |      |        |
| FROM BOLT TO |               |           |         |      |        |
| SEAL EDGE    |               |           |         |      |        |
| RESULTED IN  |               |           |         |      |        |
|              |               |           |         |      |        |
| DAMAGE TO    |               |           |         |      |        |
| THE BOLT     |               |           |         |      |        |
| ALMOST       |               |           |         |      |        |
| IDENTICAL TO |               |           |         |      |        |
| LWT-24       |               |           |         |      |        |
|              |               |           |         |      |        |
| A DETAILED   |               |           |         |      |        |
| ACCOUNTING   |               |           |         |      |        |
| OF THE ABOVE |               |           |         |      |        |
| INFORMATION  |               |           |         |      |        |
| WAS PROVIDED |               |           |         |      |        |
| BY THE       |               |           |         |      |        |
|              |               |           |         |      |        |
| RESPONSE TO  |               |           |         |      |        |
| AR NO. K7184 |               |           |         |      |        |
| WHICH IS     |               |           |         |      |        |
| TASK I.B. IN |               |           |         |      |        |
| THIS CAPS    |               |           |         |      |        |
|              |               |           |         |      |        |
| TASK I       |               |           |         |      |        |
| FAI          |               |           |         |      |        |
| LURE/PROBLEM |               |           |         |      |        |
| I            |               |           |         |      |        |
| NVESTIGATION |               |           |         |      |        |
|              |               |           |         |      |        |
| A. FAILURE   |               |           |         |      |        |
| ANALYSIS BY  |               |           |         |      |        |
| KSC          |               |           |         |      |        |
|              |               |           |         |      |        |
| KSC (NASA)   |               |           |         |      |        |
| HAS BEEN     |               |           |         |      |        |
| TASKED TO    |               |           |         |      |        |
| PERFORM THE  |               |           |         |      |        |
| FAILURE      |               |           |         |      |        |
|              |               |           |         |      |        |
| ANALYSIS ON  |               |           |         |      |        |
| THE DAMAGED  |               |           |         |      |        |
| BOLT FROM    |               |           |         |      |        |
| LWT-24 LH2   |               |           |         |      |        |
| MANHOLE      |               |           |         |      |        |
|              |               |           |         |      |        |
| COVER PER A  |               |           |         |      |        |
| TELECON      |               |           |         |      |        |
| MEETING      |               |           |         |      |        |
| BETWEEN KSC, |               |           |         |      |        |
| MSFC, AND    |               |           |         |      |        |
| MMC          |               |           |         |      |        |
|              |               |           |         |      |        |
| (MAF)        |               |           |         |      |        |
| PERSONNEL.   |               |           |         |      |        |
| THE RESULTS  |               |           |         |      |        |
| OF THAT      |               |           |         |      |        |
| FAILURE      |               |           |         |      |        |
| ANALYSIS     |               |           |         |      |        |
|              |               |           |         |      |        |
| SHALL BE     |               |           |         |      |        |
| OBTAINED AND |               |           |         |      |        |
| PRESENTED TO |               |           |         |      |        |
| RELIABILITY  |               |           |         |      |        |
| ASSURANCE,   |               |           |         |      |        |
|              |               |           |         |      |        |
| DEPARTMENT   |               |           |         |      |        |
| 3741         |               |           |         |      |        |
|              |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| STATEMENT    |               |           |         |      |        |
|              |               |           |         |      |        |
| A REPORT WAS |               |           |         |      |        |
| FORWARDED    |               |           |         |      |        |
| FROM KSC TO  |               |           |         |      |        |
| MMC, MAF.    |               |           |         |      |        |
| REFERENCE    |               |           |         |      |        |
|              |               |           |         |      |        |
| REPORT NO.   |               |           |         |      |        |
| MAB-229-87.  |               |           |         |      |        |
| THIS REPORT  |               |           |         |      |        |
| CONCLUDED    |               |           |         |      |        |
| THAT THE     |               |           |         |      |        |
|              |               |           |         |      |        |
| DAMAGED      |               |           |         |      |        |
| THREADS SEEN |               |           |         |      |        |
| ON THE       |               |           |         |      |        |
| LWT-24       |               |           |         |      |        |
| MANHOLE      |               |           |         |      |        |
| COVER BOLT   |               |           |         |      |        |
|              |               |           |         |      |        |
| WERE THE     |               |           |         |      |        |
| RESULT OF    |               |           |         |      |        |
| MACHINING    |               |           |         |      |        |
| THE BOLT     |               |           |         |      |        |
| THREADS      |               |           |         |      |        |
| PRIOR TO     |               |           |         |      |        |
|              |               |           |         |      |        |
| FINAL        |               |           |         |      |        |
| INSERTION.   |               |           |         |      |        |
| IN           |               |           |         |      |        |
| VESTIGATIONS |               |           |         |      |        |
| MADE AT MAF  |               |           |         |      |        |
| COULD NOT    |               |           |         |      |        |
|              |               |           |         |      |        |
| AFFIRM THIS  |               |           |         |      |        |
| CONCLUSION,  |               |           |         |      |        |
| AND IT IS    |               |           |         |      |        |
| THE          |               |           |         |      |        |
| CONCLUSION   |               |           |         |      |        |
| FROM THE     |               |           |         |      |        |
|              |               |           |         |      |        |
| IN           |               |           |         |      |        |
| VESTIGATIONS |               |           |         |      |        |
| MADE AT MAF  |               |           |         |      |        |
| THAT ARE     |               |           |         |      |        |
| REFLECTED IN |               |           |         |      |        |
| THIS         |               |           |         |      |        |
|              |               |           |         |      |        |
| CAPS (I.E.   |               |           |         |      |        |
| THE BOLT     |               |           |         |      |        |
| THREADS WERE |               |           |         |      |        |
| DAMAGED BY   |               |           |         |      |        |
| AN           |               |           |         |      |        |
|              |               |           |         |      |        |
| INTERFERENCE |               |           |         |      |        |
| WITH THE     |               |           |         |      |        |
| NAFLEX       |               |           |         |      |        |
| INCONEL SEAL |               |           |         |      |        |
| DURING       |               |           |         |      |        |
|              |               |           |         |      |        |
| I            |               |           |         |      |        |
| NSTALLATION) |               |           |         |      |        |
|              |               |           |         |      |        |
| B. RESPONSE  |               |           |         |      |        |
| TO AR NO.    |               |           |         |      |        |
| K7184        |               |           |         |      |        |
|              |               |           |         |      |        |
| A MSR ACTION |               |           |         |      |        |
| RESPONSE,    |               |           |         |      |        |
| K7184, WAS   |               |           |         |      |        |
| INITIATED AT |               |           |         |      |        |
| KSC AS A     |               |           |         |      |        |
|              |               |           |         |      |        |
| RESULT OF    |               |           |         |      |        |
| THE PROBLEM  |               |           |         |      |        |
| WITH THE LH2 |               |           |         |      |        |
| MANHOLE      |               |           |         |      |        |
| COVER. MMC   |               |           |         |      |        |
|              |               |           |         |      |        |
| (MAF)        |               |           |         |      |        |
| RESPONDED TO |               |           |         |      |        |
| THIS AR AND  |               |           |         |      |        |
| PROVIDED     |               |           |         |      |        |
| ADDITIONAL   |               |           |         |      |        |
|              |               |           |         |      |        |
| RESPONSE,    |               |           |         |      |        |
| PER \"PART   |               |           |         |      |        |
| B\" ON THE   |               |           |         |      |        |
| AR. THIS     |               |           |         |      |        |
| TASK         |               |           |         |      |        |
| DOCUMENTS    |               |           |         |      |        |
|              |               |           |         |      |        |
| THAT         |               |           |         |      |        |
| RESPONSE     |               |           |         |      |        |
|              |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| STATEMENT    |               |           |         |      |        |
|              |               |           |         |      |        |
| THE RESPONSE |               |           |         |      |        |
| TO AR NO     |               |           |         |      |        |
| K7184 WAS    |               |           |         |      |        |
| MADE ON THAT |               |           |         |      |        |
| DOCUMENT     |               |           |         |      |        |
|              |               |           |         |      |        |
| WITH \"PART  |               |           |         |      |        |
| B\"          |               |           |         |      |        |
| ATTACHED.    |               |           |         |      |        |
| THAT         |               |           |         |      |        |
| RESPONSE IS  |               |           |         |      |        |
| ALSO         |               |           |         |      |        |
| REFLECTED    |               |           |         |      |        |
|              |               |           |         |      |        |
| IN THIS CAPS |               |           |         |      |        |
| UNDER THE    |               |           |         |      |        |
| \"GENERAL\"  |               |           |         |      |        |
| SECTION      |               |           |         |      |        |
|              |               |           |         |      |        |
| ITEM CLOSED  |               |           |         |      |        |
|              |               |           |         |      |        |
| TASK II      |               |           |         |      |        |
| CORRECTIVE   |               |           |         |      |        |
| ACTION       |               |           |         |      |        |
|              |               |           |         |      |        |
| A. REVISE    |               |           |         |      |        |
| M            |               |           |         |      |        |
| ANUFACTURING |               |           |         |      |        |
| PROCESS      |               |           |         |      |        |
| PLANS (MPPS) |               |           |         |      |        |
|              |               |           |         |      |        |
| REVISE THE   |               |           |         |      |        |
| MPPS (FOR    |               |           |         |      |        |
| ALL MANHOLE  |               |           |         |      |        |
| COVERS) TO   |               |           |         |      |        |
| INCLUDE      |               |           |         |      |        |
| WHERE        |               |           |         |      |        |
|              |               |           |         |      |        |
| THE SLOTTED  |               |           |         |      |        |
| HOLES IN THE |               |           |         |      |        |
| SEAL SHALL   |               |           |         |      |        |
| BE LOCATED,  |               |           |         |      |        |
| AND TO       |               |           |         |      |        |
|              |               |           |         |      |        |
| REQUIRE THE  |               |           |         |      |        |
| REMOVAL OF   |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| PINS AND THE |               |           |         |      |        |
| INSTALLATION |               |           |         |      |        |
|              |               |           |         |      |        |
| OF BOLTS ONE |               |           |         |      |        |
| AT A TIME    |               |           |         |      |        |
| AFTER THE    |               |           |         |      |        |
| OTHER 88     |               |           |         |      |        |
| FASTENERS    |               |           |         |      |        |
| ARE          |               |           |         |      |        |
|              |               |           |         |      |        |
| INSTALLED    |               |           |         |      |        |
|              |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| STATEMENT    |               |           |         |      |        |
|              |               |           |         |      |        |
| THE MPPS     |               |           |         |      |        |
| WERE REVISED |               |           |         |      |        |
| FOR ALL      |               |           |         |      |        |
| COVER        |               |           |         |      |        |
| I            |               |           |         |      |        |
| NSTALLATIONS |               |           |         |      |        |
| (TWO         |               |           |         |      |        |
|              |               |           |         |      |        |
| LO2          |               |           |         |      |        |
| LOCATIONS    |               |           |         |      |        |
| AND THREE    |               |           |         |      |        |
| LH2          |               |           |         |      |        |
| LOCATIONS),  |               |           |         |      |        |
| IMPLEMENTED  |               |           |         |      |        |
| FOR          |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-44 AND   |               |           |         |      |        |
| UP WITH      |               |           |         |      |        |
| PARTIAL      |               |           |         |      |        |
| IM           |               |           |         |      |        |
| PLEMENTATION |               |           |         |      |        |
| AS           |               |           |         |      |        |
| PRODUCTION   |               |           |         |      |        |
|              |               |           |         |      |        |
| PERMITTED    |               |           |         |      |        |
| FOR LWTS 41, |               |           |         |      |        |
| 42, AND 43.  |               |           |         |      |        |
| REFERENCE    |               |           |         |      |        |
|              |               |           |         |      |        |
| INTEROFFICE  |               |           |         |      |        |
| MEMORANDUM   |               |           |         |      |        |
| 3614-88-030  |               |           |         |      |        |
|              |               |           |         |      |        |
| ITEM CLOSED  |               |           |         |      |        |
|              |               |           |         |      |        |
| B. IMPROVE   |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| PIN DESIGN   |               |           |         |      |        |
|              |               |           |         |      |        |
| REVIEW THE   |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| PIN DRAWING  |               |           |         |      |        |
| AND REVISE   |               |           |         |      |        |
| THE DESIGN   |               |           |         |      |        |
| OF           |               |           |         |      |        |
|              |               |           |         |      |        |
| THE          |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| PIN TO       |               |           |         |      |        |
| REDUCE THE   |               |           |         |      |        |
| THREAD       |               |           |         |      |        |
| LENGTH AND   |               |           |         |      |        |
| INCREASE     |               |           |         |      |        |
|              |               |           |         |      |        |
| THE SHANK    |               |           |         |      |        |
| DIAMETER     |               |           |         |      |        |
|              |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| STATEMENT    |               |           |         |      |        |
|              |               |           |         |      |        |
| THE          |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| PIN THREAD   |               |           |         |      |        |
| LENGTH WAS   |               |           |         |      |        |
| CHANGED FROM |               |           |         |      |        |
| .50 TO       |               |           |         |      |        |
|              |               |           |         |      |        |
| .20 AND THE  |               |           |         |      |        |
| SHANK        |               |           |         |      |        |
| DIAMETER WAS |               |           |         |      |        |
| CHANGED FROM |               |           |         |      |        |
| .312 TO .320 |               |           |         |      |        |
|              |               |           |         |      |        |
| (INCHES).    |               |           |         |      |        |
| THIS WILL    |               |           |         |      |        |
| PROVIDE A    |               |           |         |      |        |
| CLOSER FIT   |               |           |         |      |        |
| IN THE       |               |           |         |      |        |
| SLOTTED      |               |           |         |      |        |
|              |               |           |         |      |        |
| HOLES AND    |               |           |         |      |        |
| THUS ADDED   |               |           |         |      |        |
| ASSURANCE    |               |           |         |      |        |
| AGAINST AN   |               |           |         |      |        |
| INTERFERENCE |               |           |         |      |        |
|              |               |           |         |      |        |
| FIT.         |               |           |         |      |        |
| IMPLEMENTED  |               |           |         |      |        |
| AS OF        |               |           |         |      |        |
| LWT-42.      |               |           |         |      |        |
| REFERENCE    |               |           |         |      |        |
| INTEROFFICE  |               |           |         |      |        |
|              |               |           |         |      |        |
| MEMORANDUM   |               |           |         |      |        |
| 3614-88-030  |               |           |         |      |        |
| AND TOOL     |               |           |         |      |        |
| ORDER        |               |           |         |      |        |
| TL-0620-010A |               |           |         |      |        |
|              |               |           |         |      |        |
| TASK III     |               |           |         |      |        |
| CLEARANCE OF |               |           |         |      |        |
| E            |               |           |         |      |        |
| FFECTIVITIES |               |           |         |      |        |
| LWTS 16, 20, |               |           |         |      |        |
| 21, 22, 24   |               |           |         |      |        |
| AND UP       |               |           |         |      |        |
|              |               |           |         |      |        |
| NO           |               |           |         |      |        |
| CONTRAINTS.  |               |           |         |      |        |
| ENGINEERING  |               |           |         |      |        |
| ANALYSIS, IN |               |           |         |      |        |
| AR NO.       |               |           |         |      |        |
| K7184,       |               |           |         |      |        |
|              |               |           |         |      |        |
| DETERMINED   |               |           |         |      |        |
| THAT THE     |               |           |         |      |        |
| DAMAGE TO    |               |           |         |      |        |
| THE BOLT     |               |           |         |      |        |
| THREADS, AS  |               |           |         |      |        |
| SEEN ON      |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-24, IS   |               |           |         |      |        |
| NOT          |               |           |         |      |        |
| DETRIMENTAL  |               |           |         |      |        |
| TO THE       |               |           |         |      |        |
| FLIGHT       |               |           |         |      |        |
| PERFORMANCE  |               |           |         |      |        |
| OF THE       |               |           |         |      |        |
|              |               |           |         |      |        |
| ET. THIS     |               |           |         |      |        |
| ANALYSIS     |               |           |         |      |        |
| JUSTIFIES    |               |           |         |      |        |
| THE POSITION |               |           |         |      |        |
| NOT TO       |               |           |         |      |        |
| INSPECT THE  |               |           |         |      |        |
|              |               |           |         |      |        |
| FLEET FOR    |               |           |         |      |        |
| BOLT DAMAGE  |               |           |         |      |        |
| ON MANHOLE   |               |           |         |      |        |
| COVER. THIS  |               |           |         |      |        |
| SPECIFIC     |               |           |         |      |        |
|              |               |           |         |      |        |
| ANALYSIS     |               |           |         |      |        |
| ALSO         |               |           |         |      |        |
| JUSTIFIES    |               |           |         |      |        |
| THE          |               |           |         |      |        |
| CL           |               |           |         |      |        |
| ASSIFICATION |               |           |         |      |        |
| OF THIS CAPS |               |           |         |      |        |
| AS A         |               |           |         |      |        |
|              |               |           |         |      |        |
| CRITICALITY  |               |           |         |      |        |
| 3 RATHER     |               |           |         |      |        |
| THAN         |               |           |         |      |        |
| CRITICALITY  |               |           |         |      |        |
| 1 PER FMEA   |               |           |         |      |        |
| ITEM CODE    |               |           |         |      |        |
|              |               |           |         |      |        |
| 2.10.6.1 AND |               |           |         |      |        |
| 6.2.1.1      |               |           |         |      |        |
|              |               |           |         |      |        |
| TASK IV.     |               |           |         |      |        |
| CAPS         |               |           |         |      |        |
| CLOSEOUT     |               |           |         |      |        |
| SUMMARY      |               |           |         |      |        |
|              |               |           |         |      |        |
| \* IN THE    |               |           |         |      |        |
| PROCESS OF   |               |           |         |      |        |
| EVALUATING   |               |           |         |      |        |
| APPROPRIATE  |               |           |         |      |        |
| CORRECTIVE   |               |           |         |      |        |
| ACTION,      |               |           |         |      |        |
|              |               |           |         |      |        |
| IN           |               |           |         |      |        |
| VESTIGATIONS |               |           |         |      |        |
| WERE         |               |           |         |      |        |
| CONDUCTED AT |               |           |         |      |        |
| MAF TO       |               |           |         |      |        |
| EVALUATE THE |               |           |         |      |        |
| CAUSE OF     |               |           |         |      |        |
|              |               |           |         |      |        |
| THE BOLT     |               |           |         |      |        |
| THREAD       |               |           |         |      |        |
| DEFORMATION  |               |           |         |      |        |
| AS SEEN IN   |               |           |         |      |        |
| POSITION 43  |               |           |         |      |        |
| ON THE       |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-24 LH2   |               |           |         |      |        |
| AFT MANHOLE  |               |           |         |      |        |
| COVER. THESE |               |           |         |      |        |
| IN           |               |           |         |      |        |
| VESTIGATIONS |               |           |         |      |        |
| CONCLUDED    |               |           |         |      |        |
|              |               |           |         |      |        |
| THAT THE     |               |           |         |      |        |
| BOLT DAMAGE  |               |           |         |      |        |
| WAS CAUSED   |               |           |         |      |        |
| BY           |               |           |         |      |        |
| INTERFERENCE |               |           |         |      |        |
| WITH THE     |               |           |         |      |        |
|              |               |           |         |      |        |
| EDGE OF THE  |               |           |         |      |        |
| SLOTTED HOLE |               |           |         |      |        |
| IN THE SEAL  |               |           |         |      |        |
| DURING       |               |           |         |      |        |
| INSTALLATION |               |           |         |      |        |
| OF           |               |           |         |      |        |
|              |               |           |         |      |        |
| THE MANHOLE  |               |           |         |      |        |
| COVER AT     |               |           |         |      |        |
| MAF. IN      |               |           |         |      |        |
| TURN, THE    |               |           |         |      |        |
| IMPROPER     |               |           |         |      |        |
| BOLT         |               |           |         |      |        |
|              |               |           |         |      |        |
| INSTALLATION |               |           |         |      |        |
| PROBABLY     |               |           |         |      |        |
| RESULTED     |               |           |         |      |        |
| FROM THE     |               |           |         |      |        |
| ASSEMBLY     |               |           |         |      |        |
| GUIDE PINS   |               |           |         |      |        |
|              |               |           |         |      |        |
| BEING PLACED |               |           |         |      |        |
| IN THE WRONG |               |           |         |      |        |
| LOCATIONS    |               |           |         |      |        |
| AND/OR THE   |               |           |         |      |        |
| GUIDE PINS   |               |           |         |      |        |
|              |               |           |         |      |        |
| BEING        |               |           |         |      |        |
| IMPROPERLY   |               |           |         |      |        |
| CHANGED OUT  |               |           |         |      |        |
| FOR BOLTS    |               |           |         |      |        |
| DURING       |               |           |         |      |        |
| INSTALLATION |               |           |         |      |        |
|              |               |           |         |      |        |
| CORRECTIVE   |               |           |         |      |        |
| ACTIONS WERE |               |           |         |      |        |
| IMPLEMENTED  |               |           |         |      |        |
| TO PRECLUDE  |               |           |         |      |        |
| THE RE-      |               |           |         |      |        |
|              |               |           |         |      |        |
| OCCURRENCE   |               |           |         |      |        |
| OF THIS      |               |           |         |      |        |
| PROBLEM.     |               |           |         |      |        |
| M            |               |           |         |      |        |
| ANUFACTURING |               |           |         |      |        |
| PROCESS      |               |           |         |      |        |
| PLANS        |               |           |         |      |        |
|              |               |           |         |      |        |
| WERE REVISED |               |           |         |      |        |
| TO IMPROVE   |               |           |         |      |        |
| INSTRUCTIONS |               |           |         |      |        |
| ON PROPER    |               |           |         |      |        |
| SEAL         |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
|              |               |           |         |      |        |
| AND USE OF   |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| PINS AND     |               |           |         |      |        |
| BOLT         |               |           |         |      |        |
| I            |               |           |         |      |        |
| NSTALLATION. |               |           |         |      |        |
| AND, THE     |               |           |         |      |        |
|              |               |           |         |      |        |
| DESIGN OF    |               |           |         |      |        |
| THE          |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| PIN WAS      |               |           |         |      |        |
| IMPROVED AND |               |           |         |      |        |
| THE NEW      |               |           |         |      |        |
| DESIGN       |               |           |         |      |        |
|              |               |           |         |      |        |
| FABRICATED.  |               |           |         |      |        |
| THESE        |               |           |         |      |        |
| IMPROVEMENTS |               |           |         |      |        |
| WERE         |               |           |         |      |        |
| INCORPORATED |               |           |         |      |        |
| IN THE       |               |           |         |      |        |
|              |               |           |         |      |        |
| INSTALLATION |               |           |         |      |        |
| OF ALL       |               |           |         |      |        |
| MANHOLE      |               |           |         |      |        |
| COVERS AS    |               |           |         |      |        |
| REFLECTED    |               |           |         |      |        |
| HERE:        |               |           |         |      |        |
|              |               |           |         |      |        |
| A. UPDATED   |               |           |         |      |        |
| BY REDLINE:  |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-41 L02   |               |           |         |      |        |
| AFT COVER    |               |           |         |      |        |
| INST.        |               |           |         |      |        |
| 809          |               |           |         |      |        |
| 11001204-009 |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-42 L02   |               |           |         |      |        |
| FWD COVER    |               |           |         |      |        |
| INST.        |               |           |         |      |        |
| 809          |               |           |         |      |        |
| 11001206-010 |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-42 L02   |               |           |         |      |        |
| AFT COVER    |               |           |         |      |        |
| INST.        |               |           |         |      |        |
| 809          |               |           |         |      |        |
| 11001204-009 |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-42 L02   |               |           |         |      |        |
| AFT          |               |           |         |      |        |
| NON-SIPHON   |               |           |         |      |        |
| COVER INST.  |               |           |         |      |        |
| 809          |               |           |         |      |        |
| 11001449-010 |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-43 L02   |               |           |         |      |        |
| AFT COVER    |               |           |         |      |        |
| INST.        |               |           |         |      |        |
| 809          |               |           |         |      |        |
| 11001204-009 |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-43 L02   |               |           |         |      |        |
| FWD COVER    |               |           |         |      |        |
| INST.        |               |           |         |      |        |
| 809          |               |           |         |      |        |
| 11001206-010 |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-43 L02   |               |           |         |      |        |
| AFT          |               |           |         |      |        |
| NON-SIPHON   |               |           |         |      |        |
| COVER INST.  |               |           |         |      |        |
| 809          |               |           |         |      |        |
| 11001449-010 |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-44 L02   |               |           |         |      |        |
| FWD COVER    |               |           |         |      |        |
| INST.        |               |           |         |      |        |
| 809          |               |           |         |      |        |
| 14081490-009 |               |           |         |      |        |
|              |               |           |         |      |        |
| B.           |               |           |         |      |        |
| INCORPORATED |               |           |         |      |        |
| BY WORD      |               |           |         |      |        |
| PROCESSOR    |               |           |         |      |        |
| UPDATE:      |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-44 & UP  |               |           |         |      |        |
| L02 AFT      |               |           |         |      |        |
| COVER INST.  |               |           |         |      |        |
| 809          |               |           |         |      |        |
| 11001204-009 |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-44 & UP  |               |           |         |      |        |
| L02 FWD      |               |           |         |      |        |
| COVER INST.  |               |           |         |      |        |
| 809          |               |           |         |      |        |
| 11001206-010 |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-44 & UP  |               |           |         |      |        |
| LH2 AFT      |               |           |         |      |        |
| SIPHON COVER |               |           |         |      |        |
| INST.        |               |           |         |      |        |
| 809          |               |           |         |      |        |
| 11001449M019 |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-44 & UP  |               |           |         |      |        |
| LH2 AFT      |               |           |         |      |        |
| NON-SIPHON   |               |           |         |      |        |
| COVER INST.  |               |           |         |      |        |
| 809          |               |           |         |      |        |
| 11001449-019 |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-45 & UP  |               |           |         |      |        |
| LH2 FWD      |               |           |         |      |        |
| COVER INST.  |               |           |         |      |        |
| 809          |               |           |         |      |        |
| 14081490-009 |               |           |         |      |        |
|              |               |           |         |      |        |
| THE          |               |           |         |      |        |
| CORRECTIVE   |               |           |         |      |        |
| ACTIONS      |               |           |         |      |        |
| TAKEN HERE   |               |           |         |      |        |
| ARE          |               |           |         |      |        |
| CONSIDERED   |               |           |         |      |        |
| TO BE        |               |           |         |      |        |
|              |               |           |         |      |        |
| ADEQUATE     |               |           |         |      |        |
| WITH NO      |               |           |         |      |        |
| FURTHER      |               |           |         |      |        |
| ACTION       |               |           |         |      |        |
| NEEDED TO    |               |           |         |      |        |
| ADDRESS THE  |               |           |         |      |        |
| FLEET        |               |           |         |      |        |
|              |               |           |         |      |        |
| (BUILT       |               |           |         |      |        |
| HARDWARE).   |               |           |         |      |        |
| BY TESTING,  |               |           |         |      |        |
| IT WAS SHOWN |               |           |         |      |        |
| THAT THREE   |               |           |         |      |        |
|              |               |           |         |      |        |
| THREAD       |               |           |         |      |        |
| ENGAGEMENT   |               |           |         |      |        |
| (SAME        |               |           |         |      |        |
| C            |               |           |         |      |        |
| ONFIGURATION |               |           |         |      |        |
| AS ON        |               |           |         |      |        |
| LWT-24)      |               |           |         |      |        |
| PROVIDED     |               |           |         |      |        |
|              |               |           |         |      |        |
| PULL         |               |           |         |      |        |
| STRENGTH OF  |               |           |         |      |        |
| 8300 POUNDS  |               |           |         |      |        |
| FAR IN       |               |           |         |      |        |
| EXCESS OF    |               |           |         |      |        |
| FLIGHT LOADS |               |           |         |      |        |
| OF           |               |           |         |      |        |
|              |               |           |         |      |        |
| 6340 POUNDS. |               |           |         |      |        |
| FINALLY, IT  |               |           |         |      |        |
| MAY ALSO BE  |               |           |         |      |        |
| NOTED THAT   |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| PROBABILITY  |               |           |         |      |        |
| OF THE       |               |           |         |      |        |
| OCCURRENCE   |               |           |         |      |        |
| OF THIS TYPE |               |           |         |      |        |
| OF DAMAGE    |               |           |         |      |        |
| DURING       |               |           |         |      |        |
|              |               |           |         |      |        |
| INSTALLATION |               |           |         |      |        |
| IS           |               |           |         |      |        |
| CONSIDERED   |               |           |         |      |        |
| TO BE VERY   |               |           |         |      |        |
| LOW          |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **MSFC       |               |           |         |      |        |
| Response/C   |               |           |         |      |        |
| oncurrence** |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+

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

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

  --------------- --------------- ---------------------- ----------- ----------- ------------
  **MSFC          **IFA#**\       **Contractor RPT#**\   **JSC#**\   **KSC#**\   **EICN#**\
  Report#**\      \--             S-074                  \--         \--         \--
  A11138                                                                         

  **Asmnt         **Asmnt Part    **Asmnt Serial/Lot#**\                         
  Part#**\        Name**\         N/A                                            
  26L2-5H10       BOLT                                                           

  **HCRIT CD**\   **FCRIT CD**\   **CAUSE CD**\          **FAIL                  
  \--             1               MAW - MFG-ASY-WORK     MODE**\                 
                                                         UC - UNSAT              

  **Asmnt FMEA**\ **Asmnt FM**\   **FMEA CSE**\          **FMEA                  
  2.10.6.1        1               A                      SCSE**\                 
                                                         1                       

  **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**                                                                         
  --------------- --------------- ---------------------- ----------- ----------- ------------