-----------------------------------------------------------------------
  MSFC Problem Reporting and Corrective Action (PRACA) System

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

+--------------+---------------+-----------+---------+------+--------+
| **MSFC       | **In-Flight   | **C       | **      | *    |        |
| Record \#**\ | Anomaly       | ontractor | JSC#**\ | *KSC |        |
| A06858       | Number**\     | Report    | \--     | #**\ |        |
|              | \--           | Number**\ |         | \--  |        |
|              |               | S-062     |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Problem    |               |           |         |      |        |
| Title**\     |               |           |         |      |        |
| MISALIGNMENT |               |           |         |      |        |
| SRB          |               |           |         |      |        |
| FITTINGS,    |               |           |         |      |        |
| EB-1 TO EB-7 |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **EICN#**\   | **ELEMENT**\  | **Cont    | **F     | **   |        |
| \--          | ET            | ractor**\ | SCM#**\ | FCRI |        |
|              |               | MMMSS     | \--     | T**\ |        |
|              |               |           |         | 1    |        |
+--------------+---------------+-----------+---------+------+--------+
| **HCRIT**\   | **Sys_Lvl**\  | **Misc    |         |      |        |
| \--          | N             | Codes**\  |         |      |        |
|              |               | A **(0)** |         |      |        |
|              |               | B C D E F |         |      |        |
|              |               | G H I J K |         |      |        |
|              |               | L M N O   |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| *            | **NO          | *         | **SER/  | *    |        |
| *HARDWARE**\ | MENCLATURE**\ | *PART#**\ | LOT#**\ | *MAN |        |
| EIM          | EXTERNAL TANK | 82        | LWT-6   | UFAC |        |
|              |               | 601000000 |         | TURE |        |
|              |               |           |         | R**\ |        |
|              |               |           |         | MMC  |        |
+--------------+---------------+-----------+---------+------+--------+
| *            | **NO          | *         | **SER/  | *    |        |
| *HARDWARE**\ | MENCLATURE**\ | *PART#**\ | LOT#**\ | *MAN |        |
| LRU          | N/A           | N/A       | N/A     | UFAC |        |
|              |               |           |         | TURE |        |
|              |               |           |         | R**\ |        |
|              |               |           |         | N/A  |        |
+--------------+---------------+-----------+---------+------+--------+
| *            | **NO          | *         | **SER/  | *    |        |
| *HARDWARE**\ | MENCLATURE**\ | *PART#**\ | LOT#**\ | *MAN |        |
| NCA          | LH2 TANK      | 80        | LWT-6   | UFAC |        |
|              |               | 911000000 |         | TURE |        |
|              |               |           |         | R**\ |        |
|              |               |           |         | MMC  |        |
+--------------+---------------+-----------+---------+------+--------+
| **Test/      | **Prevailing  | **F /     | **Fail  | **   |        |
| Operation**\ | Condtion**\   | U**\      | Mode**\ | Caus |        |
| M - MFG      | N -           | UC        | MS -    | e**\ |        |
|              | INSPECTION    |           | STRUCT  | DH - |        |
|              |               |           |         | DES  |        |
|              |               |           |         | -HDW |        |
+--------------+---------------+-----------+---------+------+--------+
| **System**\  | **Defect**\   | **Ma      | **Work  | **   |        |
| STRUCTURAL   | MD - M SIZE   | terial**\ | Con     | Fail |        |
|              |               | S -       | tact**\ | Dat  |        |
|              |               | STRUCT    | C.      | e**\ |        |
|              |               |           | VOGEL   | 05   |        |
|              |               |           |         | /03/ |        |
|              |               |           |         | 1983 |        |
+--------------+---------------+-----------+---------+------+--------+
| **Received   | **Date        | **FMEA    | **IFA:  | *    |        |
| at MSFC**\   | Isolated**\   | Ref       | Mission | *Mis |        |
| 07/18/1983   | \--           | erence**\ | P       | sion |        |
|              |               | 1.1.1     | hase**\ | Ela  |        |
|              |               |           | \--     | psed |        |
|              |               |           |         | Tim  |        |
|              |               |           |         | e**\ |        |
|              |               |           |         | \--  |        |
+--------------+---------------+-----------+---------+------+--------+
| *            |               | **S       |         | **   |        |
| *Location**\ |               | ymptom**\ |         | Time |        |
| MAF          |               | MU - MECH |         | Cycl |        |
|              |               | TOLRNCE   |         | e**\ |        |
|              |               |           |         | \--  |        |
+--------------+---------------+-----------+---------+------+--------+
| *            |               |           |         |      |        |
| *Effectivity |               |           |         |      |        |
| Text**\      |               |           |         |      |        |
| LWT-6 AND    |               |           |         |      |        |
| SUBS         |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **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 |        |
| 02/10/1995   | 08/21/1987    | \--       | \--     | Code |        |
|              |               |           |         | s**\ |        |
|              |               |           |         | 2 -  |        |
|              |               |           |         | MFG  |        |
|              |               |           |         | \--  |        |
|              |               |           |         | \--  |        |
+--------------+---------------+-----------+---------+------+--------+
| **Assignee** |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Design**\  | **Chief       | **S &     | **Pro   | *    |        |
| J. WHITE     | Engineer**\   | MA**\     | ject**\ | *Pro |        |
|              | J. NICHOLS    | R.        | M.      | ject |        |
|              |               | JACKSON   | PESSIN  | MG   |        |
|              |               |           |         | R**\ |        |
|              |               |           |         | \--  |        |
+--------------+---------------+-----------+---------+------+--------+
| **Approval** |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Design**\  | **Chief       | **S &     | **Pro   | *    |        |
| B. DAVIS     | Engineer**\   | MA**\     | ject**\ | *Pro |        |
|              | J. NICHOLS    | R.        | M.      | ject |        |
|              |               | JACKSON   | PESSIN  | MG   |        |
|              |               |           |         | R**\ |        |
|              |               |           |         | \--  |        |
+--------------+---------------+-----------+---------+------+--------+
| **PAC        | **PAC Review  | **MSFC    | **St    | *    |        |
| Assignee**\  | Complete**\   | Closure   | atus**\ | *F/A |        |
| J.EL-IBRAHIM | JE            | Date**\   | C -     | C    |        |
|              |               | 0         | CLOSED  | ompl |        |
|              |               | 9/24/1987 |         | 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** |               |           |         |      |        |
|              |               |           |         |      |        |
| REF: 1)      |               |           |         |      |        |
| I            |               |           |         |      |        |
| NTERTANK/LH2 |               |           |         |      |        |
| MISALIGNMENT |               |           |         |      |        |
| WAS          |               |           |         |      |        |
| DISCOVERED   |               |           |         |      |        |
| IN CELL      |               |           |         |      |        |
| \'A\'. THE   |               |           |         |      |        |
| FWD          |               |           |         |      |        |
|              |               |           |         |      |        |
| SRB FITTING  |               |           |         |      |        |
| (EB-1) WAS   |               |           |         |      |        |
| MIS- ALIGNED |               |           |         |      |        |
| WITH THE AFT |               |           |         |      |        |
| SRB FITTING  |               |           |         |      |        |
| (EB-7)       |               |           |         |      |        |
|              |               |           |         |      |        |
| OUT-OF-TOL   |               |           |         |      |        |
| BY .090. 2)  |               |           |         |      |        |
| LH2 TANK     |               |           |         |      |        |
| WELDMENT     |               |           |         |      |        |
| M            |               |           |         |      |        |
| ISALIGNMENT, |               |           |         |      |        |
| BARRELS      |               |           |         |      |        |
| RELATIVE     |               |           |         |      |        |
|              |               |           |         |      |        |
| TO AFT DOME  |               |           |         |      |        |
| & FWD DOME   |               |           |         |      |        |
| RELATIVE TO  |               |           |         |      |        |
| AFT DOME     |               |           |         |      |        |
| WERE FOUND   |               |           |         |      |        |
| MISALIGNED   |               |           |         |      |        |
|              |               |           |         |      |        |
| SUBSEQUENTLY |               |           |         |      |        |
| LH2 BARREL   |               |           |         |      |        |
| #3 WAS FOUND |               |           |         |      |        |
| MISCLOCKED   |               |           |         |      |        |
| .270 & THE   |               |           |         |      |        |
| FWD DOME     |               |           |         |      |        |
|              |               |           |         |      |        |
| MIS- CLOCKED |               |           |         |      |        |
| BY .164 ON   |               |           |         |      |        |
| LWT-8        |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Contractor |               |           |         |      |        |
| In           |               |           |         |      |        |
| vestigation/ |               |           |         |      |        |
| Resolution** |               |           |         |      |        |
|              |               |           |         |      |        |
| R/C: 1) MMC  |               |           |         |      |        |
| HAS IMPROVED |               |           |         |      |        |
| CLOCKING AND |               |           |         |      |        |
| TACK WELDING |               |           |         |      |        |
| PROCEDURES   |               |           |         |      |        |
| DURING       |               |           |         |      |        |
|              |               |           |         |      |        |
| M            |               |           |         |      |        |
| ANUFACTURING |               |           |         |      |        |
| 2) MMC HAS   |               |           |         |      |        |
| IMPLEMENTED  |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| CLOCKING     |               |           |         |      |        |
| PROCEDURE TO |               |           |         |      |        |
|              |               |           |         |      |        |
| PREVENT      |               |           |         |      |        |
| M            |               |           |         |      |        |
| ISALIGNMENT. |               |           |         |      |        |
| CAUSE: 1)    |               |           |         |      |        |
| THE CAUSE OF |               |           |         |      |        |
| MISALIGNMENT |               |           |         |      |        |
| OF THE SRB   |               |           |         |      |        |
|              |               |           |         |      |        |
| FITTINGS,    |               |           |         |      |        |
| FORWARD TO   |               |           |         |      |        |
| AFT, WAS     |               |           |         |      |        |
| DETERMINED   |               |           |         |      |        |
| TO BE        |               |           |         |      |        |
| MISCLOCKING  |               |           |         |      |        |
| OF THE LH2   |               |           |         |      |        |
|              |               |           |         |      |        |
| FORWARD      |               |           |         |      |        |
| DOME. 2)     |               |           |         |      |        |
| MISALIGNMENT |               |           |         |      |        |
| SEEN IN THE  |               |           |         |      |        |
| LH2 BARREL   |               |           |         |      |        |
| AND T-RING   |               |           |         |      |        |
|              |               |           |         |      |        |
| ASSEMBLY WAS |               |           |         |      |        |
| CAUSED BY    |               |           |         |      |        |
| INADEQUATE   |               |           |         |      |        |
| ASSEMBLY     |               |           |         |      |        |
| PROCEDURE.   |               |           |         |      |        |
| OPTICAL      |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
|              |               |           |         |      |        |
| OF BARRELS   |               |           |         |      |        |
| AND T-RINGS  |               |           |         |      |        |
| WAS SUS-     |               |           |         |      |        |
| CEPTIBLE TO  |               |           |         |      |        |
| MISALIGNMENT |               |           |         |      |        |
| DUE TO THE   |               |           |         |      |        |
|              |               |           |         |      |        |
| AWKWARD      |               |           |         |      |        |
| POSITIONING  |               |           |         |      |        |
| OF THE       |               |           |         |      |        |
| INSTRUMENTS. |               |           |         |      |        |
| THE ACCURACY |               |           |         |      |        |
| OF THE LINE  |               |           |         |      |        |
| OF           |               |           |         |      |        |
|              |               |           |         |      |        |
| SIGHT USED   |               |           |         |      |        |
| BY           |               |           |         |      |        |
| INSPECTION   |               |           |         |      |        |
| AFTER        |               |           |         |      |        |
| COMPLETION   |               |           |         |      |        |
| OF ASSEMBLY  |               |           |         |      |        |
| WAS AFFECTED |               |           |         |      |        |
| BY           |               |           |         |      |        |
|              |               |           |         |      |        |
| THE          |               |           |         |      |        |
| POSITIONING  |               |           |         |      |        |
| OF THE.875   |               |           |         |      |        |
| FEEDLINE     |               |           |         |      |        |
| HOLE ON THE  |               |           |         |      |        |
| FORWARD      |               |           |         |      |        |
| DOME. 9/6/84 |               |           |         |      |        |
| -            |               |           |         |      |        |
|              |               |           |         |      |        |
| PRB STATUS,  |               |           |         |      |        |
| MMC TO HOLD  |               |           |         |      |        |
| CAPS OPEN TO |               |           |         |      |        |
| REVIEW LWT   |               |           |         |      |        |
| 23 & 24      |               |           |         |      |        |
| TECHNIQUE &  |               |           |         |      |        |
|              |               |           |         |      |        |
| ALIGNMENT.   |               |           |         |      |        |
| CHECKING     |               |           |         |      |        |
| MISUSE OF    |               |           |         |      |        |
| TOOLING.     |               |           |         |      |        |
| 3/6/85       |               |           |         |      |        |
| STATUSED AT  |               |           |         |      |        |
| PRB MTG      |               |           |         |      |        |
|              |               |           |         |      |        |
| 2-25-85 AS   |               |           |         |      |        |
| FOLLOWS -    |               |           |         |      |        |
| MFG NOW      |               |           |         |      |        |
| USING        |               |           |         |      |        |
| REVISED      |               |           |         |      |        |
| CLOCKING     |               |           |         |      |        |
| PROCEDURE.   |               |           |         |      |        |
| MMC          |               |           |         |      |        |
|              |               |           |         |      |        |
| WANTS TO     |               |           |         |      |        |
| MONITOR ONE  |               |           |         |      |        |
| MORE TANK TO |               |           |         |      |        |
| ASSURE       |               |           |         |      |        |
| PROCEDURES   |               |           |         |      |        |
| ARE OK. ECD  |               |           |         |      |        |
| FOR          |               |           |         |      |        |
|              |               |           |         |      |        |
| CLOSURE IS   |               |           |         |      |        |
| APPROX 5-6   |               |           |         |      |        |
| WKS. 3/13/85 |               |           |         |      |        |
| ET           |               |           |         |      |        |
| CLEARANCES - |               |           |         |      |        |
| LWT-6        |               |           |         |      |        |
| CLEARED USE  |               |           |         |      |        |
| AS           |               |           |         |      |        |
|              |               |           |         |      |        |
| IS, DAR      |               |           |         |      |        |
| MMC-ET-153   |               |           |         |      |        |
| ISSUED LWT-7 |               |           |         |      |        |
| NO MARS      |               |           |         |      |        |
| LWT-8,9, &   |               |           |         |      |        |
| 11 THE LH2   |               |           |         |      |        |
| TANK         |               |           |         |      |        |
|              |               |           |         |      |        |
| MISCLOCKING  |               |           |         |      |        |
| WAS          |               |           |         |      |        |
| ACCEPTABLE   |               |           |         |      |        |
| WITH SPECIAL |               |           |         |      |        |
| SRB FITTINGS |               |           |         |      |        |
| & LO2        |               |           |         |      |        |
| FEEDLINE     |               |           |         |      |        |
|              |               |           |         |      |        |
| FITTINGS.    |               |           |         |      |        |
| LWT-10 THE   |               |           |         |      |        |
| LH2 TANK     |               |           |         |      |        |
| MISCLOCKING  |               |           |         |      |        |
| WAS          |               |           |         |      |        |
| ACCEPTABLE   |               |           |         |      |        |
| WITH         |               |           |         |      |        |
| USE-AS-IS    |               |           |         |      |        |
|              |               |           |         |      |        |
| MRB          |               |           |         |      |        |
| DISPOSITION. |               |           |         |      |        |
| LWT-12 LH2   |               |           |         |      |        |
| TANK FWD     |               |           |         |      |        |
| DOME CLOCKED |               |           |         |      |        |
| WITHIN       |               |           |         |      |        |
| TOLERANCES   |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-13 LH2   |               |           |         |      |        |
| TANK FWD     |               |           |         |      |        |
| DOME CLOCKED |               |           |         |      |        |
| WITHIN       |               |           |         |      |        |
| TOLERANCES.  |               |           |         |      |        |
| LWT-14 LH2   |               |           |         |      |        |
| TANK FWD     |               |           |         |      |        |
|              |               |           |         |      |        |
| DOME CLOCKED |               |           |         |      |        |
| WITHIN       |               |           |         |      |        |
| TOLERANCE    |               |           |         |      |        |
| 1871,        |               |           |         |      |        |
| T-FRAME      |               |           |         |      |        |
| MISCLOCKED   |               |           |         |      |        |
| (USE-AS-IS)  |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-15 LH2   |               |           |         |      |        |
| TANK FWD     |               |           |         |      |        |
| DOME CLOCKED |               |           |         |      |        |
| OUT OF       |               |           |         |      |        |
| TOLERANCE;   |               |           |         |      |        |
| (MRB UA1)    |               |           |         |      |        |
| LWT-16 LH2   |               |           |         |      |        |
|              |               |           |         |      |        |
| TANK FWD     |               |           |         |      |        |
| DOME CLOCKED |               |           |         |      |        |
| WITHIN       |               |           |         |      |        |
| TOLERANCE;   |               |           |         |      |        |
| 1623 T-FRAME |               |           |         |      |        |
| & BBL. #1    |               |           |         |      |        |
|              |               |           |         |      |        |
| MISCLOCKED   |               |           |         |      |        |
| (USE-AS-IS). |               |           |         |      |        |
| LWT-17 LH2   |               |           |         |      |        |
| TANK FWD     |               |           |         |      |        |
| DOME CLOCKED |               |           |         |      |        |
| WITHIN       |               |           |         |      |        |
|              |               |           |         |      |        |
| TOLERANCE;   |               |           |         |      |        |
| T-FRAMED     |               |           |         |      |        |
| BARREL       |               |           |         |      |        |
| MISCLOCKING  |               |           |         |      |        |
| (USE-AS-IS). |               |           |         |      |        |
| LWT-18 LH2   |               |           |         |      |        |
| FWD DOME     |               |           |         |      |        |
|              |               |           |         |      |        |
| CLOCKED      |               |           |         |      |        |
| WITHIN       |               |           |         |      |        |
| TOLERANCE;   |               |           |         |      |        |
| T-FRAME &    |               |           |         |      |        |
| BARREL       |               |           |         |      |        |
| MISCLOCKED   |               |           |         |      |        |
| (USE-AS-IS   |               |           |         |      |        |
| WITH         |               |           |         |      |        |
|              |               |           |         |      |        |
| SPECIAL LO2  |               |           |         |      |        |
| FEEDLINE     |               |           |         |      |        |
| FITTING).    |               |           |         |      |        |
| LWT-19 LH2   |               |           |         |      |        |
| FWD DOME     |               |           |         |      |        |
| CLOCKED      |               |           |         |      |        |
| WITHIN       |               |           |         |      |        |
|              |               |           |         |      |        |
| TOLERANCE;   |               |           |         |      |        |
| T-FRAME &    |               |           |         |      |        |
| BARREL       |               |           |         |      |        |
| MISCLOCKED   |               |           |         |      |        |
| (UAI WITH    |               |           |         |      |        |
| SPECIAL LO2  |               |           |         |      |        |
| FEEDLINE     |               |           |         |      |        |
|              |               |           |         |      |        |
| FITTINGS).   |               |           |         |      |        |
| LWT-20 LH2   |               |           |         |      |        |
| FWD DOME     |               |           |         |      |        |
| CLOCKED      |               |           |         |      |        |
| WITHIN       |               |           |         |      |        |
| TOLERANCE;   |               |           |         |      |        |
| ALL T-FRAMES |               |           |         |      |        |
|              |               |           |         |      |        |
| CLOCKED      |               |           |         |      |        |
| WITHIN       |               |           |         |      |        |
| TOLERANCE;   |               |           |         |      |        |
| ONE BARREL   |               |           |         |      |        |
| LOCATION     |               |           |         |      |        |
| CLOCKED      |               |           |         |      |        |
| SLIGHTLY OUT |               |           |         |      |        |
|              |               |           |         |      |        |
| (UAI).       |               |           |         |      |        |
| LWT-21 LH2   |               |           |         |      |        |
| FWD DOME     |               |           |         |      |        |
| CLOCKED      |               |           |         |      |        |
| WITHIN       |               |           |         |      |        |
| TOLERANCE;   |               |           |         |      |        |
| ALL T-FRAMES |               |           |         |      |        |
| &            |               |           |         |      |        |
|              |               |           |         |      |        |
| BARRELS      |               |           |         |      |        |
| CLOCKED      |               |           |         |      |        |
| WITHIN       |               |           |         |      |        |
| TOLERANCE.   |               |           |         |      |        |
| LWT-22 LH2   |               |           |         |      |        |
| FWD DOME     |               |           |         |      |        |
| CLOCKED      |               |           |         |      |        |
| WITHIN       |               |           |         |      |        |
|              |               |           |         |      |        |
| TOLERANCE;   |               |           |         |      |        |
| TWO T-FRAMES |               |           |         |      |        |
| OUT OF       |               |           |         |      |        |
| TOLERANCE,   |               |           |         |      |        |
| ONE BARREL   |               |           |         |      |        |
| SLIGHTLY OUT |               |           |         |      |        |
| OF           |               |           |         |      |        |
|              |               |           |         |      |        |
| TOLERANCE    |               |           |         |      |        |
| (USE-AS-IS). |               |           |         |      |        |
| LWT-23 LH2   |               |           |         |      |        |
| FWD DOME     |               |           |         |      |        |
| CLOCKED      |               |           |         |      |        |
| WITHIN       |               |           |         |      |        |
| TOLERANCE;   |               |           |         |      |        |
|              |               |           |         |      |        |
| TWO T-FRAME  |               |           |         |      |        |
| OUT-O        |               |           |         |      |        |
| F-TOLERANCE, |               |           |         |      |        |
| THREE        |               |           |         |      |        |
| BARRELS      |               |           |         |      |        |
| OUT-O        |               |           |         |      |        |
| F-TOLERANCE. |               |           |         |      |        |
| LWT-24       |               |           |         |      |        |
|              |               |           |         |      |        |
| LH2 FWD DOME |               |           |         |      |        |
| CLOCKED      |               |           |         |      |        |
| WITHIN       |               |           |         |      |        |
| TOLERANCE.   |               |           |         |      |        |
| THREE RING   |               |           |         |      |        |
| FRAMES       |               |           |         |      |        |
|              |               |           |         |      |        |
| OUT-O        |               |           |         |      |        |
| F-TOLERANCE, |               |           |         |      |        |
| THREE        |               |           |         |      |        |
| BARRELS      |               |           |         |      |        |
| OUT-O        |               |           |         |      |        |
| F-TOLERANCE. |               |           |         |      |        |
| LWT-25 LH2   |               |           |         |      |        |
| FWD DOME     |               |           |         |      |        |
|              |               |           |         |      |        |
| CLOCKED      |               |           |         |      |        |
| WITHIN       |               |           |         |      |        |
| TOLERANCE.   |               |           |         |      |        |
| T-RING STA.  |               |           |         |      |        |
| 1623 .019    |               |           |         |      |        |
| 00T & BB1.   |               |           |         |      |        |
| #3 .032 00T  |               |           |         |      |        |
|              |               |           |         |      |        |
| (BOTH UAI).  |               |           |         |      |        |
| 6/5/85 PRB   |               |           |         |      |        |
| STATUS       |               |           |         |      |        |
| 4-16-85      |               |           |         |      |        |
| MTG - THIS   |               |           |         |      |        |
| PROBLEM HAS  |               |           |         |      |        |
| BEEN         |               |           |         |      |        |
|              |               |           |         |      |        |
| IDENTIFIED   |               |           |         |      |        |
| AS A .375    |               |           |         |      |        |
| IN. DIA.     |               |           |         |      |        |
| HOLE BEING   |               |           |         |      |        |
| MISLOCATED.  |               |           |         |      |        |
| WILL CHANGE  |               |           |         |      |        |
|              |               |           |         |      |        |
| FORWARD DOME |               |           |         |      |        |
| CLOCKING &   |               |           |         |      |        |
| TACK WELDING |               |           |         |      |        |
| PROCEDURES.  |               |           |         |      |        |
| TO REMAIN    |               |           |         |      |        |
| OPEN UNTIL   |               |           |         |      |        |
|              |               |           |         |      |        |
| FIX IS       |               |           |         |      |        |
| VERIFIED.    |               |           |         |      |        |
| 6/5/85 PRB   |               |           |         |      |        |
| STATUS       |               |           |         |      |        |
| 5-16-85      |               |           |         |      |        |
| MTG - FIRST  |               |           |         |      |        |
| PROBLEM ON   |               |           |         |      |        |
| CAPS         |               |           |         |      |        |
|              |               |           |         |      |        |
| RELATIVE TO  |               |           |         |      |        |
| MATING WITH  |               |           |         |      |        |
| SRB HAS BEEN |               |           |         |      |        |
| COR- RECTED. |               |           |         |      |        |
| THE 2ND      |               |           |         |      |        |
| PROBLEM      |               |           |         |      |        |
|              |               |           |         |      |        |
| INVOLVING    |               |           |         |      |        |
| LH2 TANK     |               |           |         |      |        |
| WELDMENT     |               |           |         |      |        |
| MISALIGNMENT |               |           |         |      |        |
| /MISCLOCKING |               |           |         |      |        |
| HAS NOT BEEN |               |           |         |      |        |
|              |               |           |         |      |        |
| RESOLVED     |               |           |         |      |        |
| CAUSE(S) ARE |               |           |         |      |        |
| UNKNOWN .    |               |           |         |      |        |
| 7/2/85       |               |           |         |      |        |
| STATUSED AT  |               |           |         |      |        |
| PRB MTG      |               |           |         |      |        |
| 6-20-85 AS   |               |           |         |      |        |
|              |               |           |         |      |        |
| FOLLOWS -    |               |           |         |      |        |
| THERE IS AN  |               |           |         |      |        |
| ECR PENDING  |               |           |         |      |        |
| AGAINST THE  |               |           |         |      |        |
| BARREL       |               |           |         |      |        |
| PANELS. AT   |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| 5-16-85 PRB  |               |           |         |      |        |
| MTG AN       |               |           |         |      |        |
| ACTION ITEM  |               |           |         |      |        |
| (PRB ET-38)  |               |           |         |      |        |
| WAS GIVEN TO |               |           |         |      |        |
| H            |               |           |         |      |        |
|              |               |           |         |      |        |
| JAC          |               |           |         |      |        |
| OB/MMC/D3741 |               |           |         |      |        |
| TO PREPARE A |               |           |         |      |        |
| PRESENTATION |               |           |         |      |        |
| TO CLARIFY   |               |           |         |      |        |
| THE CAUSE(S) |               |           |         |      |        |
| OF           |               |           |         |      |        |
|              |               |           |         |      |        |
| THE LH2 TANK |               |           |         |      |        |
| WELDMENT     |               |           |         |      |        |
| MISALIGNMENT |               |           |         |      |        |
| /MISCLOCKING |               |           |         |      |        |
| PROBLEM & TO |               |           |         |      |        |
| BETTER       |               |           |         |      |        |
|              |               |           |         |      |        |
| DEFINE THE   |               |           |         |      |        |
| R/C ACTIONS. |               |           |         |      |        |
| MR.          |               |           |         |      |        |
| JACOBS/MMC   |               |           |         |      |        |
| HAS PREPARED |               |           |         |      |        |
| THE DATA, &  |               |           |         |      |        |
| MSFC         |               |           |         |      |        |
|              |               |           |         |      |        |
| WILL TRY TO  |               |           |         |      |        |
| ARRANGE FOR  |               |           |         |      |        |
| IT TO BE     |               |           |         |      |        |
| PRESENTED TO |               |           |         |      |        |
| MR. J.       |               |           |         |      |        |
| NICHOLS/EE31 |               |           |         |      |        |
| AT           |               |           |         |      |        |
|              |               |           |         |      |        |
| MMC ON       |               |           |         |      |        |
| 6-21-85.     |               |           |         |      |        |
| 8/15/85 PRB  |               |           |         |      |        |
| STATUS -     |               |           |         |      |        |
| CAPS ACTION  |               |           |         |      |        |
| ITEM TO      |               |           |         |      |        |
| INVESTIGATE  |               |           |         |      |        |
|              |               |           |         |      |        |
| SCRIBE-LINE  |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| TECHNIQUE    |               |           |         |      |        |
| INSTEAD OF   |               |           |         |      |        |
| OPTICS       |               |           |         |      |        |
| METHOD IS    |               |           |         |      |        |
| STILL OPEN   |               |           |         |      |        |
|              |               |           |         |      |        |
| MR. J.       |               |           |         |      |        |
| FINCHER/MMC  |               |           |         |      |        |
| TO ARRANGE   |               |           |         |      |        |
| MEETING WITH |               |           |         |      |        |
| MR.          |               |           |         |      |        |
| NICHOLS/MSFC |               |           |         |      |        |
| FOR          |               |           |         |      |        |
|              |               |           |         |      |        |
| BRIEFING ON  |               |           |         |      |        |
| R/C ACTIONS. |               |           |         |      |        |
| ECD FOR      |               |           |         |      |        |
| CLOSURE OF   |               |           |         |      |        |
| THIS CAPS IS |               |           |         |      |        |
| 10-20-85     |               |           |         |      |        |
|              |               |           |         |      |        |
| 10/25/85 PRB |               |           |         |      |        |
| STATUS       |               |           |         |      |        |
| 10-17-85 -   |               |           |         |      |        |
| EACH         |               |           |         |      |        |
| DISCREPANCY  |               |           |         |      |        |
| IS WORKED ON |               |           |         |      |        |
| A MARS       |               |           |         |      |        |
|              |               |           |         |      |        |
| HAVE TO      |               |           |         |      |        |
| CUSTOM MAKE  |               |           |         |      |        |
| PARTS TO     |               |           |         |      |        |
| ATTAIN       |               |           |         |      |        |
| PROPER       |               |           |         |      |        |
| ALIGNMENT.   |               |           |         |      |        |
| LATEST       |               |           |         |      |        |
| ACTION       |               |           |         |      |        |
|              |               |           |         |      |        |
| REQUIRES USE |               |           |         |      |        |
| OF SCRIBE    |               |           |         |      |        |
| LINES ON     |               |           |         |      |        |
| COMPONENTS   |               |           |         |      |        |
| TO AID IN    |               |           |         |      |        |
| CLOCKING OF  |               |           |         |      |        |
|              |               |           |         |      |        |
| BARRELS. ECD |               |           |         |      |        |
| IS 11-30-85. |               |           |         |      |        |
| 11/21/85 PRB |               |           |         |      |        |
| STATUS -     |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| TOOLING IS   |               |           |         |      |        |
|              |               |           |         |      |        |
| COMPLETE AND |               |           |         |      |        |
| WILL BE      |               |           |         |      |        |
| VERIFIED ON  |               |           |         |      |        |
| LWT-39. ECD  |               |           |         |      |        |
| IS FEBRUARY  |               |           |         |      |        |
| 1986.        |               |           |         |      |        |
| 1/16/86      |               |           |         |      |        |
|              |               |           |         |      |        |
| PRB STATUS - |               |           |         |      |        |
| NO CHANGE    |               |           |         |      |        |
| FROM STATUS  |               |           |         |      |        |
| OF 11-21-85  |               |           |         |      |        |
| ABOVE        |               |           |         |      |        |
| ALTHOUGH ECD |               |           |         |      |        |
| IS           |               |           |         |      |        |
|              |               |           |         |      |        |
| CHANGED TO   |               |           |         |      |        |
| 2-28-86.     |               |           |         |      |        |
| 3/20/86 PRB  |               |           |         |      |        |
| STATUS -     |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| TECHNIQUE    |               |           |         |      |        |
| DID NOT      |               |           |         |      |        |
|              |               |           |         |      |        |
| SOLVE        |               |           |         |      |        |
| PROBLEM.     |               |           |         |      |        |
| FIRST LH2    |               |           |         |      |        |
| TANK WELDED  |               |           |         |      |        |
| AFTER        |               |           |         |      |        |
| IM           |               |           |         |      |        |
| PLEMENTATION |               |           |         |      |        |
| OF SCRIBE    |               |           |         |      |        |
|              |               |           |         |      |        |
| LINE         |               |           |         |      |        |
| PRODUCED AN  |               |           |         |      |        |
| OUT-         |               |           |         |      |        |
| OF-TOLERANCE |               |           |         |      |        |
| TANK. MMC    |               |           |         |      |        |
| NOW          |               |           |         |      |        |
| I            |               |           |         |      |        |
| NVESTIGATING |               |           |         |      |        |
| A METHOD     |               |           |         |      |        |
|              |               |           |         |      |        |
| FOR          |               |           |         |      |        |
| VERIFYING    |               |           |         |      |        |
| CLOCKING BY  |               |           |         |      |        |
| USING THE    |               |           |         |      |        |
| FEEDLINE     |               |           |         |      |        |
| HOLES IN THE |               |           |         |      |        |
| FORWARD AND  |               |           |         |      |        |
|              |               |           |         |      |        |
| AFT DOMES AS |               |           |         |      |        |
| REFERENCE    |               |           |         |      |        |
| POINTS. ECD  |               |           |         |      |        |
| IS 5-30-86.  |               |           |         |      |        |
| 4/17/86 PRB  |               |           |         |      |        |
| STATUS - NEW |               |           |         |      |        |
|              |               |           |         |      |        |
| TASKS OPENED |               |           |         |      |        |
| TO           |               |           |         |      |        |
| INVESTIGATE  |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| CLOCKING OF  |               |           |         |      |        |
| BARRELS AND  |               |           |         |      |        |
|              |               |           |         |      |        |
| T-RINGS;     |               |           |         |      |        |
| VERIFICATION |               |           |         |      |        |
| OF HOLE      |               |           |         |      |        |
| ALIGNMENT -  |               |           |         |      |        |
| DOME         |               |           |         |      |        |
| FIXTURES;    |               |           |         |      |        |
| AND FORWARD  |               |           |         |      |        |
|              |               |           |         |      |        |
| DOME CHECK   |               |           |         |      |        |
| TOOL. ECD IS |               |           |         |      |        |
| 6-18-86.     |               |           |         |      |        |
| 5/15/86 PRB  |               |           |         |      |        |
| STATUS -     |               |           |         |      |        |
| I            |               |           |         |      |        |
| NVESTIGATION |               |           |         |      |        |
| IS           |               |           |         |      |        |
|              |               |           |         |      |        |
| ONGOING. ECD |               |           |         |      |        |
| CHANGED TO   |               |           |         |      |        |
| JULY 1986.   |               |           |         |      |        |
| 6/19/86 PRB  |               |           |         |      |        |
| STATUS -     |               |           |         |      |        |
| DEFERRED     |               |           |         |      |        |
| UNTIL        |               |           |         |      |        |
|              |               |           |         |      |        |
| NEXT PRB.    |               |           |         |      |        |
| MEETING RAN  |               |           |         |      |        |
| OUT OF TIME. |               |           |         |      |        |
| 7/15/86 PRB  |               |           |         |      |        |
| STATUS -     |               |           |         |      |        |
| LWT-40 IS    |               |           |         |      |        |
|              |               |           |         |      |        |
| COMPLETED.   |               |           |         |      |        |
| PUTTING FWD  |               |           |         |      |        |
| DOME ON      |               |           |         |      |        |
| LWT-41.      |               |           |         |      |        |
| VERIFYING    |               |           |         |      |        |
| HOLE         |               |           |         |      |        |
| ALIGNMENT ON |               |           |         |      |        |
| AFT          |               |           |         |      |        |
|              |               |           |         |      |        |
| DOME. THIS   |               |           |         |      |        |
| IS A         |               |           |         |      |        |
| PRODUCTION   |               |           |         |      |        |
| PROBLEM.     |               |           |         |      |        |
| CHECKED TWO  |               |           |         |      |        |
| DOMES, NEED  |               |           |         |      |        |
| ONE MORE     |               |           |         |      |        |
|              |               |           |         |      |        |
| CHECK TO     |               |           |         |      |        |
| VERIFY       |               |           |         |      |        |
| PROCEDURE.   |               |           |         |      |        |
| 5/28/87 -    |               |           |         |      |        |
| STATUS       |               |           |         |      |        |
| UPDATE -     |               |           |         |      |        |
| ASSESSMENT   |               |           |         |      |        |
| OF           |               |           |         |      |        |
|              |               |           |         |      |        |
| TOOLS,       |               |           |         |      |        |
| OPERATIONS,  |               |           |         |      |        |
| AND          |               |           |         |      |        |
| ENGINEERING  |               |           |         |      |        |
| RELATED TO   |               |           |         |      |        |
| CLOCKING OF  |               |           |         |      |        |
| BARRELS,     |               |           |         |      |        |
|              |               |           |         |      |        |
| DOMES, AND   |               |           |         |      |        |
| T-RINGS. ECD |               |           |         |      |        |
| 7/25/87.     |               |           |         |      |        |
| 8/24/87      |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| UPDATE -     |               |           |         |      |        |
| REF. CAPS    |               |           |         |      |        |
|              |               |           |         |      |        |
| S-062 C.     |               |           |         |      |        |
| TASK I       |               |           |         |      |        |
| GENERAL A.   |               |           |         |      |        |
| LWT-6        |               |           |         |      |        |
| EXTERNAL     |               |           |         |      |        |
| TANK WAS     |               |           |         |      |        |
| FOUND TO BE  |               |           |         |      |        |
|              |               |           |         |      |        |
| MISCLOCKED   |               |           |         |      |        |
| IN CELL      |               |           |         |      |        |
| \"A\". A     |               |           |         |      |        |
| SHOP AID WAS |               |           |         |      |        |
| THEN         |               |           |         |      |        |
| FABRICATED   |               |           |         |      |        |
| AND THE SRB  |               |           |         |      |        |
| BEAM         |               |           |         |      |        |
|              |               |           |         |      |        |
| WAS MEASURED |               |           |         |      |        |
| RELATIVE TO  |               |           |         |      |        |
| THE          |               |           |         |      |        |
| INTERTANK    |               |           |         |      |        |
| FLANGE; THE  |               |           |         |      |        |
| +Y SIDE WAS  |               |           |         |      |        |
| .015         |               |           |         |      |        |
|              |               |           |         |      |        |
| FROM NOMINAL |               |           |         |      |        |
| AND THE -Y   |               |           |         |      |        |
| WAS .080.    |               |           |         |      |        |
| THE          |               |           |         |      |        |
| RELIABILITY  |               |           |         |      |        |
| OF THIS      |               |           |         |      |        |
| MEASUREMENT  |               |           |         |      |        |
|              |               |           |         |      |        |
| IS, HOWEVER, |               |           |         |      |        |
| UNKNOWN      |               |           |         |      |        |
| BECAUSE IT   |               |           |         |      |        |
| WAS BASED    |               |           |         |      |        |
| UPON A NEWLY |               |           |         |      |        |
| DESIGNED AND |               |           |         |      |        |
|              |               |           |         |      |        |
| FABRICATED   |               |           |         |      |        |
| SHOP AID.    |               |           |         |      |        |
| THIS SHOP    |               |           |         |      |        |
| AID WAS      |               |           |         |      |        |
| SUBSEQUENTLY |               |           |         |      |        |
| USED TO      |               |           |         |      |        |
| CHECK AN     |               |           |         |      |        |
|              |               |           |         |      |        |
| INTERTANK    |               |           |         |      |        |
| SUBASSEMBLY  |               |           |         |      |        |
| DURING       |               |           |         |      |        |
| FABRICATION, |               |           |         |      |        |
| THE SRB BEAM |               |           |         |      |        |
| WAS VERIFIED |               |           |         |      |        |
| TO           |               |           |         |      |        |
|              |               |           |         |      |        |
| BE ALIGNED   |               |           |         |      |        |
| WITH .015.   |               |           |         |      |        |
| THE          |               |           |         |      |        |
| PROCEDURES   |               |           |         |      |        |
| THAT ALIGN   |               |           |         |      |        |
| THE BEAM IN  |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| INTERTANK    |               |           |         |      |        |
| INVOLVE HARD |               |           |         |      |        |
| TOOLING,     |               |           |         |      |        |
| THUS MINI-   |               |           |         |      |        |
| MIZING THE   |               |           |         |      |        |
| LIKELIHOOD   |               |           |         |      |        |
| OF           |               |           |         |      |        |
|              |               |           |         |      |        |
| ERROR.       |               |           |         |      |        |
| PROCEDURES   |               |           |         |      |        |
| THAT ALIGN   |               |           |         |      |        |
| THE HYDROGEN |               |           |         |      |        |
| TANK FORWARD |               |           |         |      |        |
| DOME INVOLVE |               |           |         |      |        |
|              |               |           |         |      |        |
| OPTICS       |               |           |         |      |        |
| BEFORE       |               |           |         |      |        |
| TACKING. AN  |               |           |         |      |        |
| OPTICAL      |               |           |         |      |        |
| CHECK IS     |               |           |         |      |        |
| ALSO MADE    |               |           |         |      |        |
| AFTER        |               |           |         |      |        |
| WELDING IS   |               |           |         |      |        |
|              |               |           |         |      |        |
| COMPLETED.   |               |           |         |      |        |
| ON LWT-6,    |               |           |         |      |        |
| THE ORIGINAL |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| WAS WITHIN   |               |           |         |      |        |
| .020 AND THE |               |           |         |      |        |
|              |               |           |         |      |        |
| CHECK AFTER  |               |           |         |      |        |
| WELDING WAS  |               |           |         |      |        |
| VERIFIED PER |               |           |         |      |        |
| REQUIREMENTS |               |           |         |      |        |
| TO BE WITHIN |               |           |         |      |        |
| .075. B      |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-8 LH2    |               |           |         |      |        |
| TANK         |               |           |         |      |        |
| WELDMENT WAS |               |           |         |      |        |
| CHECKED AND  |               |           |         |      |        |
| THE          |               |           |         |      |        |
| FOLLOWING    |               |           |         |      |        |
| M            |               |           |         |      |        |
| ISALIGNMENTS |               |           |         |      |        |
|              |               |           |         |      |        |
| RELATIVE TO  |               |           |         |      |        |
| THE AFT DOME |               |           |         |      |        |
| WERE         |               |           |         |      |        |
| VERIFIED:    |               |           |         |      |        |
| POSITION     |               |           |         |      |        |
| MISALIGNMENT |               |           |         |      |        |
| TOLERANCE    |               |           |         |      |        |
|              |               |           |         |      |        |
| FORWARD DOME |               |           |         |      |        |
| .164 .075    |               |           |         |      |        |
| BARREL NO. 3 |               |           |         |      |        |
| .270 +/-.120 |               |           |         |      |        |
| 1623.8 CHORD |               |           |         |      |        |
| .3           |               |           |         |      |        |
|              |               |           |         |      |        |
| (AP          |               |           |         |      |        |
| PROXIMATELY) |               |           |         |      |        |
| +/-.120 THE  |               |           |         |      |        |
| FORWARD DOME |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| TECHNIQUE    |               |           |         |      |        |
| BASICALLY    |               |           |         |      |        |
|              |               |           |         |      |        |
| ALIGNS       |               |           |         |      |        |
| REFERENCE    |               |           |         |      |        |
| POINTS NEAR  |               |           |         |      |        |
| +Y AND -Y    |               |           |         |      |        |
| PARALLEL TO  |               |           |         |      |        |
| THE AFT DOME |               |           |         |      |        |
|              |               |           |         |      |        |
| REFERENCE    |               |           |         |      |        |
| PLANE. THE   |               |           |         |      |        |
| DOME IS THEN |               |           |         |      |        |
| LOCKED IN    |               |           |         |      |        |
| PLACE ON ONE |               |           |         |      |        |
| SIDE (+Y)    |               |           |         |      |        |
| WITH         |               |           |         |      |        |
|              |               |           |         |      |        |
| A PAIR OF    |               |           |         |      |        |
| TACK WELDS   |               |           |         |      |        |
| AND          |               |           |         |      |        |
| ALIGNMENT IS |               |           |         |      |        |
| VERIFIED.    |               |           |         |      |        |
| TACK WELDING |               |           |         |      |        |
| THEN         |               |           |         |      |        |
|              |               |           |         |      |        |
| PROCEEDS     |               |           |         |      |        |
| AROUND THE   |               |           |         |      |        |
| CIRCUM-      |               |           |         |      |        |
| FERENCE.     |               |           |         |      |        |
| WITH THIS    |               |           |         |      |        |
| PROCEDURE,   |               |           |         |      |        |
| IT IS        |               |           |         |      |        |
|              |               |           |         |      |        |
| ESSENTIAL    |               |           |         |      |        |
| THAT THE     |               |           |         |      |        |
| OFF-SET      |               |           |         |      |        |
| BETWEEN THE  |               |           |         |      |        |
| COMPONENTS   |               |           |         |      |        |
| TO BE WELDED |               |           |         |      |        |
| BE           |               |           |         |      |        |
|              |               |           |         |      |        |
| MINIMIZED    |               |           |         |      |        |
| OVER THE     |               |           |         |      |        |
| LENGTH OF    |               |           |         |      |        |
| THE WELD     |               |           |         |      |        |
| PRIOR TO     |               |           |         |      |        |
| ALIGNING.    |               |           |         |      |        |
| THIS MAY BE  |               |           |         |      |        |
|              |               |           |         |      |        |
| VERY         |               |           |         |      |        |
| DIFFICULT TO |               |           |         |      |        |
| ACCOMPLISH   |               |           |         |      |        |
| AND          |               |           |         |      |        |
| MISALIGNMENT |               |           |         |      |        |
| CAN OCCUR.   |               |           |         |      |        |
| THE ALIGNING |               |           |         |      |        |
|              |               |           |         |      |        |
| OF LWT-9     |               |           |         |      |        |
| FORWARD DOME |               |           |         |      |        |
| WAS          |               |           |         |      |        |
| MONITORED.   |               |           |         |      |        |
| AN OFF-SET   |               |           |         |      |        |
| OF           |               |           |         |      |        |
| A            |               |           |         |      |        |
| PPROXIMATELY |               |           |         |      |        |
| .200         |               |           |         |      |        |
|              |               |           |         |      |        |
| AT THE       |               |           |         |      |        |
| BOTTOM WAS   |               |           |         |      |        |
| NOTED DURING |               |           |         |      |        |
| ALIGNMENT.   |               |           |         |      |        |
| THIS MAY     |               |           |         |      |        |
| HAVE BEEN    |               |           |         |      |        |
|              |               |           |         |      |        |
| SIGNIFICANT  |               |           |         |      |        |
| SINCE A      |               |           |         |      |        |
| MISCLOCKING  |               |           |         |      |        |
| OF .150 WAS  |               |           |         |      |        |
| FOUND AFTER  |               |           |         |      |        |
| TACKING AND  |               |           |         |      |        |
|              |               |           |         |      |        |
| WELDING. THE |               |           |         |      |        |
| ABOVE IS     |               |           |         |      |        |
| CONSIDERED   |               |           |         |      |        |
| TO BE ONE OF |               |           |         |      |        |
| MANY         |               |           |         |      |        |
| POSSIBLE     |               |           |         |      |        |
| CAUSES FOR   |               |           |         |      |        |
|              |               |           |         |      |        |
| MISALIGNMENT |               |           |         |      |        |
| THAT NEEDS   |               |           |         |      |        |
| TO BE        |               |           |         |      |        |
| I            |               |           |         |      |        |
| NVESTIGATED. |               |           |         |      |        |
| TASK II LH2  |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| FORWARD TO   |               |           |         |      |        |
| AFT DOME     |               |           |         |      |        |
| PROCEDURES   |               |           |         |      |        |
| FOR LWT-6    |               |           |         |      |        |
| WERE         |               |           |         |      |        |
| ACCOMPLISHED |               |           |         |      |        |
| ON THE 5019  |               |           |         |      |        |
|              |               |           |         |      |        |
| FIXTURE. THE |               |           |         |      |        |
| COMPLETED    |               |           |         |      |        |
| WELDMENT WAS |               |           |         |      |        |
| THEN         |               |           |         |      |        |
| RECHECKED    |               |           |         |      |        |
| WITH         |               |           |         |      |        |
| EXTERNAL     |               |           |         |      |        |
| OPTICS       |               |           |         |      |        |
|              |               |           |         |      |        |
| AND FOUND TO |               |           |         |      |        |
| BE WITHIN    |               |           |         |      |        |
| .020.        |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| PROCEDURES   |               |           |         |      |        |
| HAVE SINCE   |               |           |         |      |        |
| CHANGED      |               |           |         |      |        |
|              |               |           |         |      |        |
| SUCH THAT    |               |           |         |      |        |
| THE INITIAL  |               |           |         |      |        |
| ALIGNMENT IS |               |           |         |      |        |
| ACCOMPLISHED |               |           |         |      |        |
| ON THE 5068  |               |           |         |      |        |
| WITH         |               |           |         |      |        |
|              |               |           |         |      |        |
| EXTERNAL     |               |           |         |      |        |
| OPTICS.      |               |           |         |      |        |
| LWT-8, WHICH |               |           |         |      |        |
| FOLLOWED     |               |           |         |      |        |
| THIS         |               |           |         |      |        |
| PROCEDURE,   |               |           |         |      |        |
| WAS          |               |           |         |      |        |
| INITIALLY    |               |           |         |      |        |
|              |               |           |         |      |        |
| ALIGNED      |               |           |         |      |        |
| WITHIN .015  |               |           |         |      |        |
| BEFORE       |               |           |         |      |        |
| TACKING. THE |               |           |         |      |        |
| RECHECK      |               |           |         |      |        |
| AFTER        |               |           |         |      |        |
| WELDING      |               |           |         |      |        |
|              |               |           |         |      |        |
| DETERMINED   |               |           |         |      |        |
| THAT THE     |               |           |         |      |        |
| FORWARD DOME |               |           |         |      |        |
| WAS          |               |           |         |      |        |
| MISCLOCKED   |               |           |         |      |        |
| WITH A       |               |           |         |      |        |
| READING OF   |               |           |         |      |        |
| .164         |               |           |         |      |        |
|              |               |           |         |      |        |
| THIS CAPS    |               |           |         |      |        |
| SHALL BE     |               |           |         |      |        |
| CONCERNED    |               |           |         |      |        |
| WITH LH2     |               |           |         |      |        |
| FORWARD DOME |               |           |         |      |        |
| AND BARREL   |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
|              |               |           |         |      |        |
| PROCEDURES   |               |           |         |      |        |
| FOR LWT-8    |               |           |         |      |        |
| AND UP.      |               |           |         |      |        |
| IN           |               |           |         |      |        |
| VESTIGATIONS |               |           |         |      |        |
| INCLUDED THE |               |           |         |      |        |
| FOLLOWING: A |               |           |         |      |        |
|              |               |           |         |      |        |
| DETERMINED   |               |           |         |      |        |
| POSSIBLE     |               |           |         |      |        |
| FAILURE      |               |           |         |      |        |
| MODES IN THE |               |           |         |      |        |
| OPTICAL      |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| TECHNIQUE    |               |           |         |      |        |
|              |               |           |         |      |        |
| THAT CAN     |               |           |         |      |        |
| INTRODUCE    |               |           |         |      |        |
| ERROR IN     |               |           |         |      |        |
| CLOCKING. B. |               |           |         |      |        |
| INVESTIGATED |               |           |         |      |        |
| THE AFFECTS  |               |           |         |      |        |
| OF           |               |           |         |      |        |
|              |               |           |         |      |        |
| TACKING AND  |               |           |         |      |        |
| WELDING ON   |               |           |         |      |        |
| ALIGNMENT.   |               |           |         |      |        |
| C.           |               |           |         |      |        |
| INVESTIGATED |               |           |         |      |        |
| THE LOWER    |               |           |         |      |        |
| AFT SRB      |               |           |         |      |        |
|              |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| RELATIVE TO  |               |           |         |      |        |
| THE UPPER.   |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| STATEMENT    |               |           |         |      |        |
| CLOCKING AND |               |           |         |      |        |
| TACKING      |               |           |         |      |        |
|              |               |           |         |      |        |
| PROCEDURES   |               |           |         |      |        |
| HAVE BEEN    |               |           |         |      |        |
| CHANGED ON   |               |           |         |      |        |
| THE FORWARD  |               |           |         |      |        |
| DOME         |               |           |         |      |        |
| I            |               |           |         |      |        |
| NSTALLATION. |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| PROBLEM HAS  |               |           |         |      |        |
| BEEN         |               |           |         |      |        |
| CORRECTED    |               |           |         |      |        |
| SINCE LWT-12 |               |           |         |      |        |
| (REFERENCE   |               |           |         |      |        |
| MPP          |               |           |         |      |        |
| 80914000000, |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-12).     |               |           |         |      |        |
| TASK III     |               |           |         |      |        |
| SRB -        |               |           |         |      |        |
| INTERTANK    |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| THE SRB IS   |               |           |         |      |        |
| ALIGNED TO   |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| INTERTANK    |               |           |         |      |        |
| WITH HARD    |               |           |         |      |        |
| TOOLING.     |               |           |         |      |        |
| INSPECTION   |               |           |         |      |        |
| OF THIS      |               |           |         |      |        |
| TOOLING WITH |               |           |         |      |        |
| EXTERNAL     |               |           |         |      |        |
|              |               |           |         |      |        |
| OPTICS TO    |               |           |         |      |        |
| VERIFY ITS   |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| (MAY BE DONE |               |           |         |      |        |
| IN           |               |           |         |      |        |
| CONJUNCTION  |               |           |         |      |        |
| WITH THE PI  |               |           |         |      |        |
|              |               |           |         |      |        |
| AND PM OF    |               |           |         |      |        |
| MAY, 1983).  |               |           |         |      |        |
| INSPECT THE  |               |           |         |      |        |
| INTERTANK -  |               |           |         |      |        |
| SRB          |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| FOR THE      |               |           |         |      |        |
|              |               |           |         |      |        |
| DURATION OF  |               |           |         |      |        |
| THIS CAPS    |               |           |         |      |        |
| UTILIZING    |               |           |         |      |        |
| THE SHOP AID |               |           |         |      |        |
| WHICH        |               |           |         |      |        |
| ATTACHES TO  |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| FLANGE AT +Y |               |           |         |      |        |
| AND -Y (THIS |               |           |         |      |        |
| MEASUREMENT  |               |           |         |      |        |
| IS TO BE     |               |           |         |      |        |
| MADE IN THE  |               |           |         |      |        |
| 1ST POSITION |               |           |         |      |        |
|              |               |           |         |      |        |
| ASSEMBLY).   |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| STATEMENT NO |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| PROBLEM      |               |           |         |      |        |
| WITHIN THE   |               |           |         |      |        |
| INTERTANK    |               |           |         |      |        |
|              |               |           |         |      |        |
| WAS DETECTED |               |           |         |      |        |
| (REFERENCE   |               |           |         |      |        |
| MEMORANDUM   |               |           |         |      |        |
| FROM G.      |               |           |         |      |        |
| SCARBOROUGH  |               |           |         |      |        |
| TO C. VOGEL, |               |           |         |      |        |
|              |               |           |         |      |        |
| DATE JUNE 4, |               |           |         |      |        |
| 1987). TASK  |               |           |         |      |        |
| IV CELL A -  |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| PROCEDURE    |               |           |         |      |        |
| EVALUATE     |               |           |         |      |        |
|              |               |           |         |      |        |
| TOOLING      |               |           |         |      |        |
| SETUP AND    |               |           |         |      |        |
| PROCEDURES   |               |           |         |      |        |
| FOR PROBLEM  |               |           |         |      |        |
| AREAS AND    |               |           |         |      |        |
| RECOMMEND    |               |           |         |      |        |
|              |               |           |         |      |        |
| IMPROVEMENT. |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| STATEMENT    |               |           |         |      |        |
| TOOLING      |               |           |         |      |        |
| CHANGES WERE |               |           |         |      |        |
| MADE IN THE  |               |           |         |      |        |
| PLUMB        |               |           |         |      |        |
|              |               |           |         |      |        |
| BOB          |               |           |         |      |        |
| FIXTURING    |               |           |         |      |        |
| USED WITH    |               |           |         |      |        |
| OPTICS       |               |           |         |      |        |
| (REFERENCE   |               |           |         |      |        |
| MEMORANDUM   |               |           |         |      |        |
| FROM T.      |               |           |         |      |        |
| CLAUSING     |               |           |         |      |        |
|              |               |           |         |      |        |
| TO C. VOGEL, |               |           |         |      |        |
| DATED JUNE   |               |           |         |      |        |
| 11, 1987).   |               |           |         |      |        |
| TASK V       |               |           |         |      |        |
| T-RING AND   |               |           |         |      |        |
| BARREL       |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
|              |               |           |         |      |        |
| SINGLE POINT |               |           |         |      |        |
| UNDER THE    |               |           |         |      |        |
| FIXTURE      |               |           |         |      |        |
| OPTICS WAS   |               |           |         |      |        |
| ADDED TO THE |               |           |         |      |        |
| 5019 WELD    |               |           |         |      |        |
|              |               |           |         |      |        |
| FIXTURE TO   |               |           |         |      |        |
| PROVIDE MORE |               |           |         |      |        |
| ACCURATE     |               |           |         |      |        |
| T-RING AND   |               |           |         |      |        |
| BARREL       |               |           |         |      |        |
| ALIGNMENT.   |               |           |         |      |        |
| AN           |               |           |         |      |        |
|              |               |           |         |      |        |
| IMPROVEMENT  |               |           |         |      |        |
| WAS SEEN     |               |           |         |      |        |
| SUBSEQUENT   |               |           |         |      |        |
| TO THE       |               |           |         |      |        |
| CHANGE (LTS  |               |           |         |      |        |
| 20 AND 21).  |               |           |         |      |        |
| LATER        |               |           |         |      |        |
|              |               |           |         |      |        |
| EF           |               |           |         |      |        |
| FECTIVITIES, |               |           |         |      |        |
| HOWEVER,     |               |           |         |      |        |
| AGAIN SHOWED |               |           |         |      |        |
| A PROBLEM.   |               |           |         |      |        |
| IT IS        |               |           |         |      |        |
| SUSPECTED    |               |           |         |      |        |
| THAT         |               |           |         |      |        |
|              |               |           |         |      |        |
| THIS WAS     |               |           |         |      |        |
| RELATED TO   |               |           |         |      |        |
| PROCEDURES,  |               |           |         |      |        |
| THUS, THE    |               |           |         |      |        |
| FOLLOWING    |               |           |         |      |        |
| CHANGES      |               |           |         |      |        |
| SHALL BE     |               |           |         |      |        |
|              |               |           |         |      |        |
| MADE: PHASE  |               |           |         |      |        |
| I. THE       |               |           |         |      |        |
| LWT-25 LH2   |               |           |         |      |        |
| (            |               |           |         |      |        |
| 80914090960) |               |           |         |      |        |
| MPP SHALL BE |               |           |         |      |        |
| REDLINED TO  |               |           |         |      |        |
|              |               |           |         |      |        |
| SPECIFICALLY |               |           |         |      |        |
| REQUIRE THAT |               |           |         |      |        |
| THE CLOCKING |               |           |         |      |        |
| SCRIBE MARKS |               |           |         |      |        |
| INSTALLED    |               |           |         |      |        |
| DURING       |               |           |         |      |        |
|              |               |           |         |      |        |
| OPTICAL      |               |           |         |      |        |
| ALIGNMENT BE |               |           |         |      |        |
| PLACED AT    |               |           |         |      |        |
| THE BOTTOM   |               |           |         |      |        |
| NEAR THE     |               |           |         |      |        |
| LINE OF      |               |           |         |      |        |
| SIGHT. THE   |               |           |         |      |        |
|              |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| SHALL BE     |               |           |         |      |        |
| APPLIED WITH |               |           |         |      |        |
| A VIBRO      |               |           |         |      |        |
| MARKER AND   |               |           |         |      |        |
| SHALL BE     |               |           |         |      |        |
|              |               |           |         |      |        |
| A            |               |           |         |      |        |
| PPROXIMATELY |               |           |         |      |        |
| 2\" LONG. A  |               |           |         |      |        |
| REDLINE      |               |           |         |      |        |
| SHALL ALSO   |               |           |         |      |        |
| STIPULATE    |               |           |         |      |        |
| HOW THE TACK |               |           |         |      |        |
|              |               |           |         |      |        |
| WELDING      |               |           |         |      |        |
| OPERATION    |               |           |         |      |        |
| SHALL BE     |               |           |         |      |        |
| DONE. PHASE  |               |           |         |      |        |
| II. THE      |               |           |         |      |        |
| LWT-25 MPP,  |               |           |         |      |        |
| IN           |               |           |         |      |        |
|              |               |           |         |      |        |
| CONJUNCTION  |               |           |         |      |        |
| WITH PHASE I |               |           |         |      |        |
| ABOVE, SHALL |               |           |         |      |        |
| BE REDLINED  |               |           |         |      |        |
| FOR QC       |               |           |         |      |        |
| INSPECTION   |               |           |         |      |        |
|              |               |           |         |      |        |
| VERIFICATION |               |           |         |      |        |
| OF THE       |               |           |         |      |        |
| FOLLOWING: - |               |           |         |      |        |
| PROPER       |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| APPLICATION  |               |           |         |      |        |
| PRIOR        |               |           |         |      |        |
|              |               |           |         |      |        |
| TO ANY       |               |           |         |      |        |
| ROTATION -   |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| AFTER        |               |           |         |      |        |
| TACKING -    |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
|              |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| AFTER        |               |           |         |      |        |
| WELDING      |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| STATEMENT    |               |           |         |      |        |
| LWT-25 MPP   |               |           |         |      |        |
| WAS REDLINED |               |           |         |      |        |
| AS           |               |           |         |      |        |
|              |               |           |         |      |        |
| INSTRUCTED.  |               |           |         |      |        |
| THE CABLE    |               |           |         |      |        |
| TRAY HOLES   |               |           |         |      |        |
| AND FEEDLINE |               |           |         |      |        |
| HOLES WERE   |               |           |         |      |        |
| GROUPED      |               |           |         |      |        |
|              |               |           |         |      |        |
| TIGHTERTO    |               |           |         |      |        |
| THE LINE OF  |               |           |         |      |        |
| SIGHT FOR    |               |           |         |      |        |
| LT-25 THAN   |               |           |         |      |        |
| ON LWTS 22,  |               |           |         |      |        |
| 23, AND 24.  |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| MPPS FOR     |               |           |         |      |        |
| SUBSEQUENT   |               |           |         |      |        |
| BUILDS       |               |           |         |      |        |
| REFLECT THAT |               |           |         |      |        |
| THE SCRIBE   |               |           |         |      |        |
| LINE BE      |               |           |         |      |        |
| APPLIED NEAR |               |           |         |      |        |
|              |               |           |         |      |        |
| THE LINE OF  |               |           |         |      |        |
| SIGHT, MPPS  |               |           |         |      |        |
| HAVE ALWAYS, |               |           |         |      |        |
| HOWEVER,     |               |           |         |      |        |
| REFLECTED    |               |           |         |      |        |
| THAT SCRIBE  |               |           |         |      |        |
|              |               |           |         |      |        |
| LINES BE     |               |           |         |      |        |
| VERIFIED     |               |           |         |      |        |
| AFTER        |               |           |         |      |        |
| TACKING FOR  |               |           |         |      |        |
| RELATIVE     |               |           |         |      |        |
| MOVEMENT     |               |           |         |      |        |
| (AND THIS    |               |           |         |      |        |
| HAS NOT      |               |           |         |      |        |
|              |               |           |         |      |        |
| BEEN A       |               |           |         |      |        |
| PROBLEM)     |               |           |         |      |        |
| (RE- FERENCE |               |           |         |      |        |
| MPP          |               |           |         |      |        |
| 80914090960, |               |           |         |      |        |
| LWT-25).     |               |           |         |      |        |
| TASK VI      |               |           |         |      |        |
| SCRIBE       |               |           |         |      |        |
|              |               |           |         |      |        |
| LINE         |               |           |         |      |        |
| CLOCKING OF  |               |           |         |      |        |
| BARRELS AND  |               |           |         |      |        |
| T-RINGS      |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| PROCEDURES   |               |           |         |      |        |
| WERE         |               |           |         |      |        |
|              |               |           |         |      |        |
| TIGHTENED UP |               |           |         |      |        |
| AS OF        |               |           |         |      |        |
| LWT-25,      |               |           |         |      |        |
| HOWEVER,     |               |           |         |      |        |
| THIS PROVED  |               |           |         |      |        |
| TO BE        |               |           |         |      |        |
| INSUFFICIENT |               |           |         |      |        |
| TO           |               |           |         |      |        |
|              |               |           |         |      |        |
| PROVIDE A    |               |           |         |      |        |
| CONSISTENTLY |               |           |         |      |        |
| ACCEPTABLE   |               |           |         |      |        |
| PRODUCT.     |               |           |         |      |        |
| LWT-28 WAS   |               |           |         |      |        |
| CHECKED ON   |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| 5068 FIXTURE |               |           |         |      |        |
| FROM TWO     |               |           |         |      |        |
| POSITIONS TO |               |           |         |      |        |
| VERIFY THAT  |               |           |         |      |        |
| THE          |               |           |         |      |        |
| ORIENTATION  |               |           |         |      |        |
| OF THE       |               |           |         |      |        |
|              |               |           |         |      |        |
| INSTRUMENTS  |               |           |         |      |        |
| WAS NOT      |               |           |         |      |        |
| PROVIDING    |               |           |         |      |        |
| ERRONEOUS    |               |           |         |      |        |
| INFORMA-     |               |           |         |      |        |
| TION (IT WAS |               |           |         |      |        |
| GOOD). AS    |               |           |         |      |        |
|              |               |           |         |      |        |
| OF LWT-30,   |               |           |         |      |        |
| CLOCKING     |               |           |         |      |        |
| DATA FROM    |               |           |         |      |        |
| LWT-17 AND   |               |           |         |      |        |
| UP WERE      |               |           |         |      |        |
| ANALYZED FOR |               |           |         |      |        |
|              |               |           |         |      |        |
| FEASIBILITY  |               |           |         |      |        |
| OF CLOCKING  |               |           |         |      |        |
| WITH         |               |           |         |      |        |
| REAPPLIED    |               |           |         |      |        |
| SCRIBE       |               |           |         |      |        |
| LINES.       |               |           |         |      |        |
| TOOLING WAS  |               |           |         |      |        |
|              |               |           |         |      |        |
| ORDERED FOR  |               |           |         |      |        |
| THIS AND THE |               |           |         |      |        |
| SCRIBE LINES |               |           |         |      |        |
| WERE ADDED   |               |           |         |      |        |
| S            |               |           |         |      |        |
| UPPLEMENTARY |               |           |         |      |        |
| TO           |               |           |         |      |        |
|              |               |           |         |      |        |
| OPTICS ON    |               |           |         |      |        |
| LWT-39 FOR   |               |           |         |      |        |
| EVALUATION.  |               |           |         |      |        |
| PRELIMINARY  |               |           |         |      |        |
| RESULTS ON   |               |           |         |      |        |
| LWT-39 SHOWS |               |           |         |      |        |
|              |               |           |         |      |        |
| THAT THE     |               |           |         |      |        |
| SCRIBE LINES |               |           |         |      |        |
| ARE A VIABLE |               |           |         |      |        |
| FORM OF      |               |           |         |      |        |
| CLOCKING.    |               |           |         |      |        |
| THE SCATTER  |               |           |         |      |        |
| OF THE       |               |           |         |      |        |
|              |               |           |         |      |        |
| HOLE PATTERN |               |           |         |      |        |
| IS           |               |           |         |      |        |
| ACCEPTABLE   |               |           |         |      |        |
| BUT THE      |               |           |         |      |        |
| PATTERN      |               |           |         |      |        |
| MOVES OFF    |               |           |         |      |        |
| AWAY FROM    |               |           |         |      |        |
| THE LINE     |               |           |         |      |        |
|              |               |           |         |      |        |
| OF SIGHT,    |               |           |         |      |        |
| THUS,        |               |           |         |      |        |
| CREATING AN  |               |           |         |      |        |
| OUT OF       |               |           |         |      |        |
| TOLERANCE    |               |           |         |      |        |
| CONDITION    |               |           |         |      |        |
| (THE SAME    |               |           |         |      |        |
| EFFECT       |               |           |         |      |        |
|              |               |           |         |      |        |
| OCCURRED     |               |           |         |      |        |
| WITH OPTICAL |               |           |         |      |        |
| CLOCKING).   |               |           |         |      |        |
| THIS DRAWS   |               |           |         |      |        |
| SUSPICION TO |               |           |         |      |        |
| THE          |               |           |         |      |        |
| PLACEMENT    |               |           |         |      |        |
|              |               |           |         |      |        |
| OF .875      |               |           |         |      |        |
| AND.375      |               |           |         |      |        |
| HOLES IN THE |               |           |         |      |        |
| FORWARD AND  |               |           |         |      |        |
| AFT DOME     |               |           |         |      |        |
| CHORDS.      |               |           |         |      |        |
| EVALUATE THE |               |           |         |      |        |
|              |               |           |         |      |        |
| E            |               |           |         |      |        |
| FFECTIVENESS |               |           |         |      |        |
| OF           |               |           |         |      |        |
| PREAPPLIED   |               |           |         |      |        |
| SCRIBE LINES |               |           |         |      |        |
| FOR CLOCKING |               |           |         |      |        |
| BARRELS AND  |               |           |         |      |        |
|              |               |           |         |      |        |
| T-RINGS.     |               |           |         |      |        |
| REDLINE MPPS |               |           |         |      |        |
| AND LWTS 40  |               |           |         |      |        |
| AND 41 TO    |               |           |         |      |        |
| ACCOMPLISH   |               |           |         |      |        |
| THE          |               |           |         |      |        |
| EVALUATION   |               |           |         |      |        |
|              |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| STATEMENT    |               |           |         |      |        |
| REVISIONS    |               |           |         |      |        |
| WERE MADE TO |               |           |         |      |        |
| LWTS 40 AND  |               |           |         |      |        |
| 41 MPPS      |               |           |         |      |        |
|              |               |           |         |      |        |
| EVALUATION   |               |           |         |      |        |
| SHOWS THAT   |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| ALIGNMENT IS |               |           |         |      |        |
| A VIABLE     |               |           |         |      |        |
| PROCESS      |               |           |         |      |        |
|              |               |           |         |      |        |
| (REFERENCE   |               |           |         |      |        |
| MPP          |               |           |         |      |        |
| 80914090960  |               |           |         |      |        |
| M009,        |               |           |         |      |        |
| A            |               |           |         |      |        |
| TTACHMENTS). |               |           |         |      |        |
| TASK VII     |               |           |         |      |        |
| VERIFICATION |               |           |         |      |        |
| OF           |               |           |         |      |        |
|              |               |           |         |      |        |
| HOLE         |               |           |         |      |        |
| ALIGNMENT -  |               |           |         |      |        |
| DOME         |               |           |         |      |        |
| FIXTURES THE |               |           |         |      |        |
| .875         |               |           |         |      |        |
| DIAMETER     |               |           |         |      |        |
| HOLE ON THE  |               |           |         |      |        |
| FORWARD      |               |           |         |      |        |
|              |               |           |         |      |        |
| DOME CHORD   |               |           |         |      |        |
| AND THE .375 |               |           |         |      |        |
| DIAMETER     |               |           |         |      |        |
| HOLE ON THE  |               |           |         |      |        |
| AFT DOME     |               |           |         |      |        |
| CHORD ARE    |               |           |         |      |        |
| USED IN      |               |           |         |      |        |
|              |               |           |         |      |        |
| CLOCKING THE |               |           |         |      |        |
| BARRELS AND  |               |           |         |      |        |
| T-RINGS. THE |               |           |         |      |        |
| POSITIONS OF |               |           |         |      |        |
| THESE HOLES  |               |           |         |      |        |
| RELATIVE     |               |           |         |      |        |
|              |               |           |         |      |        |
| TO OTHER     |               |           |         |      |        |
| FEATURES ON  |               |           |         |      |        |
| THEIR        |               |           |         |      |        |
| RESPECTIVE   |               |           |         |      |        |
| DOMES MAY    |               |           |         |      |        |
| HAVE AN      |               |           |         |      |        |
| EFFECT ON    |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| OVERALL      |               |           |         |      |        |
| CLOCKING     |               |           |         |      |        |
| READINGS     |               |           |         |      |        |
| MADE ON THE  |               |           |         |      |        |
| LH2 TANK.    |               |           |         |      |        |
| THE          |               |           |         |      |        |
| POSITIONING  |               |           |         |      |        |
| OF THE       |               |           |         |      |        |
|              |               |           |         |      |        |
| .875 HOLE    |               |           |         |      |        |
| RELATIVE TO  |               |           |         |      |        |
| THE Y AXIS   |               |           |         |      |        |
| BOLTING RING |               |           |         |      |        |
| HOLES ON THE |               |           |         |      |        |
| FORWARDDOME, |               |           |         |      |        |
|              |               |           |         |      |        |
| AND THE .375 |               |           |         |      |        |
| HOLE         |               |           |         |      |        |
| RELATIVE TO  |               |           |         |      |        |
| THE SRB      |               |           |         |      |        |
| ATTACH       |               |           |         |      |        |
| POINTS ON    |               |           |         |      |        |
| THE AFT      |               |           |         |      |        |
| DOME,        |               |           |         |      |        |
|              |               |           |         |      |        |
| DETERMINE    |               |           |         |      |        |
| THE CLOCKING |               |           |         |      |        |
| RELATIONSHIP |               |           |         |      |        |
| BETWEEN TWO  |               |           |         |      |        |
| SETS OF      |               |           |         |      |        |
| REFERENCES   |               |           |         |      |        |
| 1)           |               |           |         |      |        |
|              |               |           |         |      |        |
| .875 AND     |               |           |         |      |        |
| .375 HOLES   |               |           |         |      |        |
| FOR BARREL   |               |           |         |      |        |
| AND T-RING   |               |           |         |      |        |
| CLOCKING,    |               |           |         |      |        |
| AND 2)       |               |           |         |      |        |
| BOLTING RING |               |           |         |      |        |
|              |               |           |         |      |        |
| HOLES AND    |               |           |         |      |        |
| SRB ATTACH   |               |           |         |      |        |
| POINTS FOR   |               |           |         |      |        |
| DOME         |               |           |         |      |        |
| CLOCKING.    |               |           |         |      |        |
| THE RELATED  |               |           |         |      |        |
| TOOLING USED |               |           |         |      |        |
|              |               |           |         |      |        |
| IN DRILLING  |               |           |         |      |        |
| THE FORWARD  |               |           |         |      |        |
| AND AFT      |               |           |         |      |        |
| DOMES SHALL  |               |           |         |      |        |
| BE CHECKED   |               |           |         |      |        |
| USING A      |               |           |         |      |        |
|              |               |           |         |      |        |
| THEODOLITE   |               |           |         |      |        |
| INSTRUMENT   |               |           |         |      |        |
| AT THE       |               |           |         |      |        |
| FOLLOWING    |               |           |         |      |        |
| LOCATIONS:   |               |           |         |      |        |
| T02A7016:    |               |           |         |      |        |
| PROVIDE      |               |           |         |      |        |
|              |               |           |         |      |        |
| ANGLE        |               |           |         |      |        |
| READINGS     |               |           |         |      |        |
| FROM THE     |               |           |         |      |        |
| CENTER LINE  |               |           |         |      |        |
| OF THE       |               |           |         |      |        |
| FOLLOWING    |               |           |         |      |        |
| LOCATIONS TO |               |           |         |      |        |
| +Z:          |               |           |         |      |        |
|              |               |           |         |      |        |
| S-2-3,       |               |           |         |      |        |
| S-3-3,       |               |           |         |      |        |
| R-14-5,      |               |           |         |      |        |
| R-13-5,      |               |           |         |      |        |
| R-14-4,      |               |           |         |      |        |
| R-15-4, -Z   |               |           |         |      |        |
| T02A7018:    |               |           |         |      |        |
| PROVIDE      |               |           |         |      |        |
|              |               |           |         |      |        |
| ANGLE        |               |           |         |      |        |
| READINGS     |               |           |         |      |        |
| FROM THE     |               |           |         |      |        |
| CENTER LINE  |               |           |         |      |        |
| OF THE       |               |           |         |      |        |
| FOLLOWING    |               |           |         |      |        |
| LOCATIONS TO |               |           |         |      |        |
| +Z:          |               |           |         |      |        |
|              |               |           |         |      |        |
| +Y LOWER SRB |               |           |         |      |        |
| PINHOLE; +Y  |               |           |         |      |        |
| UPPER SRB    |               |           |         |      |        |
| PINHOLE;     |               |           |         |      |        |
| .375         |               |           |         |      |        |
| DIAMETER     |               |           |         |      |        |
| HOLE         |               |           |         |      |        |
|              |               |           |         |      |        |
| (REFERENCE   |               |           |         |      |        |
| 80914961960, |               |           |         |      |        |
| SHEET 9,     |               |           |         |      |        |
| SECTION      |               |           |         |      |        |
| U-U), -Y     |               |           |         |      |        |
| LOWER SRB    |               |           |         |      |        |
| PINHOLE, -Y  |               |           |         |      |        |
|              |               |           |         |      |        |
| UPPER SRB    |               |           |         |      |        |
| PINHOLE.     |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| STATEMENT    |               |           |         |      |        |
| ANGULAR      |               |           |         |      |        |
| READINGS ON  |               |           |         |      |        |
| THE GIVEN    |               |           |         |      |        |
|              |               |           |         |      |        |
| FEATURES     |               |           |         |      |        |
| WERE TAKEN.  |               |           |         |      |        |
| NO           |               |           |         |      |        |
| SIGNIFICANT  |               |           |         |      |        |
| DEVIATIONS   |               |           |         |      |        |
| FROM NOMINAL |               |           |         |      |        |
| WERE SEEN    |               |           |         |      |        |
|              |               |           |         |      |        |
| ON THE 7018. |               |           |         |      |        |
| ON THE 7016  |               |           |         |      |        |
| FIXTURE,     |               |           |         |      |        |
| REFERENCING  |               |           |         |      |        |
| OFF OF THE Z |               |           |         |      |        |
| AXIS, ALL    |               |           |         |      |        |
|              |               |           |         |      |        |
| OTHER POINTS |               |           |         |      |        |
| IDENTIFIED   |               |           |         |      |        |
| TO BE        |               |           |         |      |        |
| CHECKED      |               |           |         |      |        |
| RANGED FROM  |               |           |         |      |        |
| .0080        |               |           |         |      |        |
| DEGREES TO   |               |           |         |      |        |
|              |               |           |         |      |        |
| .0149        |               |           |         |      |        |
| DEGREES FROM |               |           |         |      |        |
| NOMINAL      |               |           |         |      |        |
| (REFERENCE   |               |           |         |      |        |
| PA           |               |           |         |      |        |
| WORKSHEETS   |               |           |         |      |        |
| 96159 AND    |               |           |         |      |        |
| 123936)      |               |           |         |      |        |
|              |               |           |         |      |        |
| TASK VIII    |               |           |         |      |        |
| FORWARD DOME |               |           |         |      |        |
| CHECK TOOL   |               |           |         |      |        |
| (.0875 HOLE) |               |           |         |      |        |
| DESIGN AND   |               |           |         |      |        |
| FABRICATE A  |               |           |         |      |        |
|              |               |           |         |      |        |
| CHECK TOOL   |               |           |         |      |        |
| (SHOP AID)   |               |           |         |      |        |
| THAT WILL    |               |           |         |      |        |
| VERIFY THE   |               |           |         |      |        |
| PROPER       |               |           |         |      |        |
| LOCATION OF  |               |           |         |      |        |
| THE .875     |               |           |         |      |        |
|              |               |           |         |      |        |
| DIAMETER     |               |           |         |      |        |
| HOLE IN THE  |               |           |         |      |        |
| 1129 CHORD   |               |           |         |      |        |
| TO THE S-2-3 |               |           |         |      |        |
| AND S-3-3    |               |           |         |      |        |
| HOLES IN THE |               |           |         |      |        |
|              |               |           |         |      |        |
| BOLTING      |               |           |         |      |        |
| RING. VERIFY |               |           |         |      |        |
| HOLE         |               |           |         |      |        |
| LOCATION ON  |               |           |         |      |        |
| LWTS 39, 40, |               |           |         |      |        |
| AND 41 WITH  |               |           |         |      |        |
| THIS         |               |           |         |      |        |
|              |               |           |         |      |        |
| TOOL.        |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| STATEMENT    |               |           |         |      |        |
| THE .875     |               |           |         |      |        |
| DIAMETER     |               |           |         |      |        |
| FEEDLINE     |               |           |         |      |        |
| PINHOLE ON   |               |           |         |      |        |
| LWTS 39,     |               |           |         |      |        |
|              |               |           |         |      |        |
| 40, AND 41   |               |           |         |      |        |
| WAS CHECKED  |               |           |         |      |        |
| WITH THE     |               |           |         |      |        |
| FABRICATED   |               |           |         |      |        |
| TOOL.        |               |           |         |      |        |
| OFFSETS      |               |           |         |      |        |
| TOWARDS THE  |               |           |         |      |        |
| +Y           |               |           |         |      |        |
|              |               |           |         |      |        |
| AXIS OF      |               |           |         |      |        |
| .027, .070,  |               |           |         |      |        |
| AND .087     |               |           |         |      |        |
| WERE FOUND,  |               |           |         |      |        |
| RESPECTIVELY |               |           |         |      |        |
| (REFERENCE   |               |           |         |      |        |
| MPPS         |               |           |         |      |        |
|              |               |           |         |      |        |
| 809          |               |           |         |      |        |
| 14004000-020 |               |           |         |      |        |
| AND          |               |           |         |      |        |
| 80914        |               |           |         |      |        |
| 001950-009). |               |           |         |      |        |
| TASK IX      |               |           |         |      |        |
| IMPROVEMENTS |               |           |         |      |        |
| TO BARREL    |               |           |         |      |        |
|              |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| APPLICATION  |               |           |         |      |        |
| TOOL         |               |           |         |      |        |
| EVALUATE THE |               |           |         |      |        |
| E            |               |           |         |      |        |
| FFECTIVENESS |               |           |         |      |        |
| OF THE       |               |           |         |      |        |
| BARREL       |               |           |         |      |        |
|              |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| TOOL,        |               |           |         |      |        |
| T05A         |               |           |         |      |        |
| 5102-24-101, |               |           |         |      |        |
| GIVEN THAT   |               |           |         |      |        |
| THE TOOLING  |               |           |         |      |        |
| HOLE IN THE  |               |           |         |      |        |
|              |               |           |         |      |        |
| TRIMOFF AREA |               |           |         |      |        |
| IS NOT       |               |           |         |      |        |
| EXISTENT IN  |               |           |         |      |        |
| SOME PANELS. |               |           |         |      |        |
| THE TOOLING  |               |           |         |      |        |
| HOLE IS IN   |               |           |         |      |        |
|              |               |           |         |      |        |
| LINE WITH    |               |           |         |      |        |
| THE          |               |           |         |      |        |
| CABLETRAY    |               |           |         |      |        |
| HOLES AND IS |               |           |         |      |        |
| AN           |               |           |         |      |        |
| ADDITIONAL   |               |           |         |      |        |
| FEATURE      |               |           |         |      |        |
| AIDING IN    |               |           |         |      |        |
|              |               |           |         |      |        |
| SETTING UP   |               |           |         |      |        |
| THE TOOL.    |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| STATEMENT    |               |           |         |      |        |
| THE NEW      |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| TOOL,        |               |           |         |      |        |
|              |               |           |         |      |        |
| T05A         |               |           |         |      |        |
| 5102-24-101, |               |           |         |      |        |
| APPLIES A    |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| WITH AN      |               |           |         |      |        |
| ACCURACY OF  |               |           |         |      |        |
| +/- .03 EVEN |               |           |         |      |        |
|              |               |           |         |      |        |
| WITHOUT THE  |               |           |         |      |        |
| USE OF THE   |               |           |         |      |        |
| TOOLING      |               |           |         |      |        |
| HOLE. THE    |               |           |         |      |        |
| OLD TOOL HAD |               |           |         |      |        |
| AN ACCURACY  |               |           |         |      |        |
| OF           |               |           |         |      |        |
|              |               |           |         |      |        |
| A            |               |           |         |      |        |
| PPROXIMATELY |               |           |         |      |        |
| +/- .180 DUE |               |           |         |      |        |
| TO           |               |           |         |      |        |
| DIFFICULTIES |               |           |         |      |        |
| IN HANDLING  |               |           |         |      |        |
| IT. THE      |               |           |         |      |        |
|              |               |           |         |      |        |
| I            |               |           |         |      |        |
| NCONSISTENCY |               |           |         |      |        |
| IN PROVIDING |               |           |         |      |        |
| THE          |               |           |         |      |        |
| ADDITIONAL   |               |           |         |      |        |
| TOOLING HOLE |               |           |         |      |        |
| IN SOME      |               |           |         |      |        |
| PANELS       |               |           |         |      |        |
|              |               |           |         |      |        |
| HAS BEEN     |               |           |         |      |        |
| CORRECTED    |               |           |         |      |        |
| FOR LWT-53   |               |           |         |      |        |
| AND UP (ALL  |               |           |         |      |        |
| PANELS SHALL |               |           |         |      |        |
| HAVE THAT    |               |           |         |      |        |
|              |               |           |         |      |        |
| TOOLING      |               |           |         |      |        |
| HOLE),       |               |           |         |      |        |
| REFERENCE    |               |           |         |      |        |
| MEMORANDUM   |               |           |         |      |        |
| DATED        |               |           |         |      |        |
| 1/5/87, FROM |               |           |         |      |        |
| R. WHITE TO  |               |           |         |      |        |
| C            |               |           |         |      |        |
|              |               |           |         |      |        |
| VOGEL). TASK |               |           |         |      |        |
| X            |               |           |         |      |        |
| VERIFICATION |               |           |         |      |        |
| OF SCRIBE    |               |           |         |      |        |
| LINE         |               |           |         |      |        |
| CLOCKING ON  |               |           |         |      |        |
| LWT-45       |               |           |         |      |        |
| ANALYSIS     |               |           |         |      |        |
|              |               |           |         |      |        |
| FROM TASK VI |               |           |         |      |        |
| ON           |               |           |         |      |        |
| PREAPPLIED   |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| VERSUS       |               |           |         |      |        |
| OPTICAL      |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
|              |               |           |         |      |        |
| INDICATED    |               |           |         |      |        |
| THAT         |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| SOLELY BY    |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| FROM THE AFT |               |           |         |      |        |
| DOME, UP TO  |               |           |         |      |        |
|              |               |           |         |      |        |
| AND          |               |           |         |      |        |
| INCLUDING    |               |           |         |      |        |
| BARREL 4,    |               |           |         |      |        |
| WOULD BE AN  |               |           |         |      |        |
| IMPROVEMENT  |               |           |         |      |        |
| OVER OPTICAL |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
|              |               |           |         |      |        |
| ANALYSIS OF  |               |           |         |      |        |
| HISTORICAL   |               |           |         |      |        |
| DATA BACK TO |               |           |         |      |        |
| LWT-20 ALSO  |               |           |         |      |        |
| SUPPORTS     |               |           |         |      |        |
| THIS         |               |           |         |      |        |
| POSITION     |               |           |         |      |        |
|              |               |           |         |      |        |
| BY A PURELY  |               |           |         |      |        |
| ANALYTICAL   |               |           |         |      |        |
| ANALYSIS,    |               |           |         |      |        |
| THE OPTICAL  |               |           |         |      |        |
| METHOD WOULD |               |           |         |      |        |
| BE IDEAL,    |               |           |         |      |        |
|              |               |           |         |      |        |
| HOWEVER,     |               |           |         |      |        |
| THERE PROVES |               |           |         |      |        |
| TO BE COM-   |               |           |         |      |        |
| PROMISING    |               |           |         |      |        |
| FACTORS      |               |           |         |      |        |
| ASSOCIATED   |               |           |         |      |        |
| WITH THE     |               |           |         |      |        |
|              |               |           |         |      |        |
| ACTUAL       |               |           |         |      |        |
| PERFORMANCE  |               |           |         |      |        |
| OF THE TASK  |               |           |         |      |        |
| ON THE 5019  |               |           |         |      |        |
| WELD FIXTURE |               |           |         |      |        |
| THAT         |               |           |         |      |        |
| ULTIMATELY   |               |           |         |      |        |
|              |               |           |         |      |        |
| AFFECTS THE  |               |           |         |      |        |
| OUTCOME.     |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| SHALL BE     |               |           |         |      |        |
| INCORPORATED |               |           |         |      |        |
| INTO         |               |           |         |      |        |
|              |               |           |         |      |        |
| THE BUILD OF |               |           |         |      |        |
| LWT-45 LH2   |               |           |         |      |        |
| AFT          |               |           |         |      |        |
| DOME/BARREL  |               |           |         |      |        |
| WELDMENT.    |               |           |         |      |        |
| EVALUATE THE |               |           |         |      |        |
|              |               |           |         |      |        |
| E            |               |           |         |      |        |
| FFECTIVENESS |               |           |         |      |        |
| OF SCRIBE    |               |           |         |      |        |
| LINE         |               |           |         |      |        |
| ALIGNMENT.   |               |           |         |      |        |
| THE          |               |           |         |      |        |
| EVALUATION   |               |           |         |      |        |
| SHALL BE     |               |           |         |      |        |
| ALLOWED      |               |           |         |      |        |
|              |               |           |         |      |        |
| TO CONSIDER  |               |           |         |      |        |
| THE          |               |           |         |      |        |
| ADDITIONAL   |               |           |         |      |        |
| EFFECTS OF   |               |           |         |      |        |
| HOLE         |               |           |         |      |        |
| POSITIONING  |               |           |         |      |        |
| ON THE       |               |           |         |      |        |
| FORWARD      |               |           |         |      |        |
|              |               |           |         |      |        |
| AND AFT      |               |           |         |      |        |
| DOMES.       |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| STATEMENT    |               |           |         |      |        |
| LWT-45 WAS   |               |           |         |      |        |
| CLOCKED BY   |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
|              |               |           |         |      |        |
| (BARRELS AND |               |           |         |      |        |
| T-RINGS).    |               |           |         |      |        |
| VERIFICATION |               |           |         |      |        |
| OF CLOCKING  |               |           |         |      |        |
| AFTER        |               |           |         |      |        |
| COMPLETION   |               |           |         |      |        |
| OF           |               |           |         |      |        |
|              |               |           |         |      |        |
| ASSEMBLY     |               |           |         |      |        |
| DETERMINED   |               |           |         |      |        |
| THAT ALL     |               |           |         |      |        |
| POSITIONS    |               |           |         |      |        |
| WERE IN      |               |           |         |      |        |
| TOLERANCE.   |               |           |         |      |        |
| IN ADDITION  |               |           |         |      |        |
|              |               |           |         |      |        |
| TO           |               |           |         |      |        |
| IMPLEM       |               |           |         |      |        |
| ENTINGSCRIBE |               |           |         |      |        |
| LINE         |               |           |         |      |        |
| CLOCKING, A  |               |           |         |      |        |
| MEASUREMENT  |               |           |         |      |        |
| TO VERIFY    |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| RELATIVE     |               |           |         |      |        |
| POSITION OF  |               |           |         |      |        |
| THE .875     |               |           |         |      |        |
| FEEDLINE     |               |           |         |      |        |
| HOLE ON THE  |               |           |         |      |        |
| FORWARD DOME |               |           |         |      |        |
|              |               |           |         |      |        |
| (STATION     |               |           |         |      |        |
| 1129)        |               |           |         |      |        |
| RELATIVE TO  |               |           |         |      |        |
| THE          |               |           |         |      |        |
| INTERFACE    |               |           |         |      |        |
| BOLTING      |               |           |         |      |        |
| FLANGE WAS   |               |           |         |      |        |
|              |               |           |         |      |        |
| IMPLEMENTED. |               |           |         |      |        |
| THIS         |               |           |         |      |        |
| MEASUREMENT  |               |           |         |      |        |
| PROVIDED     |               |           |         |      |        |
| MORE         |               |           |         |      |        |
| ACCURATE     |               |           |         |      |        |
| PLACEMENT OF |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| STATION 1129 |               |           |         |      |        |
| REFERENCE    |               |           |         |      |        |
| POINT FOR    |               |           |         |      |        |
| THE LINE-OF- |               |           |         |      |        |
| SIGHT USED   |               |           |         |      |        |
| IN VERIFYING |               |           |         |      |        |
|              |               |           |         |      |        |
| CLOCKING     |               |           |         |      |        |
| (REFERENCE   |               |           |         |      |        |
| MPP          |               |           |         |      |        |
| 80914090960  |               |           |         |      |        |
| M009,        |               |           |         |      |        |
| LWT-45. TASK |               |           |         |      |        |
| XI           |               |           |         |      |        |
| MEASUREMENT  |               |           |         |      |        |
|              |               |           |         |      |        |
| ON LWT-46    |               |           |         |      |        |
| AFT DOME     |               |           |         |      |        |
| MAKE A       |               |           |         |      |        |
| MESUREMENT   |               |           |         |      |        |
| DETERMINING  |               |           |         |      |        |
| THE DISTANCE |               |           |         |      |        |
| BETWEEN      |               |           |         |      |        |
|              |               |           |         |      |        |
| THE .375     |               |           |         |      |        |
| HOLE (USED   |               |           |         |      |        |
| AS A         |               |           |         |      |        |
| REFERENCE IN |               |           |         |      |        |
| CLOCKING     |               |           |         |      |        |
| BARRELS AND  |               |           |         |      |        |
| T-RINGS) AND |               |           |         |      |        |
|              |               |           |         |      |        |
| THE 3.250    |               |           |         |      |        |
| UPPER SRB    |               |           |         |      |        |
| HOLE (USED   |               |           |         |      |        |
| AS A         |               |           |         |      |        |
| REFERENCE IN |               |           |         |      |        |
| CLOCKING THE |               |           |         |      |        |
| FORWARD      |               |           |         |      |        |
|              |               |           |         |      |        |
| DOME). NOTE: |               |           |         |      |        |
| THE CLOCKING |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| IS APPLIED   |               |           |         |      |        |
| TO THE AFT   |               |           |         |      |        |
| DOME BY THE  |               |           |         |      |        |
|              |               |           |         |      |        |
| T02A7512     |               |           |         |      |        |
| TOOL SECURED |               |           |         |      |        |
| TO THE .375  |               |           |         |      |        |
| HOLE.        |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| STATEMENT    |               |           |         |      |        |
| THE LENGTH   |               |           |         |      |        |
|              |               |           |         |      |        |
| BETWEEN THE  |               |           |         |      |        |
| .375 AND     |               |           |         |      |        |
| 3.250 HOLES  |               |           |         |      |        |
| ON LWT-46    |               |           |         |      |        |
| WAS MEASURED |               |           |         |      |        |
| AT 112.371   |               |           |         |      |        |
|              |               |           |         |      |        |
| THIS DOME    |               |           |         |      |        |
| HAD A        |               |           |         |      |        |
| MEASURED     |               |           |         |      |        |
| C            |               |           |         |      |        |
| IRCUMFERENCE |               |           |         |      |        |
| OF 1040.280, |               |           |         |      |        |
| THUS THE     |               |           |         |      |        |
| NOMINAL      |               |           |         |      |        |
|              |               |           |         |      |        |
| SHOULD BE    |               |           |         |      |        |
| 112.324. THE |               |           |         |      |        |
| DELTA FROM   |               |           |         |      |        |
| NOMINAL      |               |           |         |      |        |
| (.047) WAS   |               |           |         |      |        |
| WITHIN THE   |               |           |         |      |        |
| STACKUP      |               |           |         |      |        |
|              |               |           |         |      |        |
| OF           |               |           |         |      |        |
| TOLERANCES   |               |           |         |      |        |
| (+/- .070;   |               |           |         |      |        |
| REFERENCE PA |               |           |         |      |        |
| WORKSHEET    |               |           |         |      |        |
| 132593).     |               |           |         |      |        |
| TASK XII     |               |           |         |      |        |
|              |               |           |         |      |        |
| VERIFICATION |               |           |         |      |        |
| OF           |               |           |         |      |        |
| TOLERANCES   |               |           |         |      |        |
| ON FORWARD   |               |           |         |      |        |
| DOME         |               |           |         |      |        |
| ENGINEERING  |               |           |         |      |        |
| SHALL        |               |           |         |      |        |
| VERIFIY      |               |           |         |      |        |
|              |               |           |         |      |        |
| THE          |               |           |         |      |        |
| TOLERANCES   |               |           |         |      |        |
| ON THE       |               |           |         |      |        |
| FORWARD DOME |               |           |         |      |        |
| FOR THE      |               |           |         |      |        |
| POSITION OF  |               |           |         |      |        |
| THE .875     |               |           |         |      |        |
|              |               |           |         |      |        |
| FEEDLINE     |               |           |         |      |        |
| HOLE         |               |           |         |      |        |
| RELATIVE TO  |               |           |         |      |        |
| THE          |               |           |         |      |        |
| INTERFACE    |               |           |         |      |        |
| BOLTING      |               |           |         |      |        |
| FLANGE       |               |           |         |      |        |
| HOLES, AND   |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| BIPOD HOLES  |               |           |         |      |        |
| RELATIVE TO  |               |           |         |      |        |
| THE FLANGE   |               |           |         |      |        |
| HOLES, AND   |               |           |         |      |        |
| THE .875     |               |           |         |      |        |
| HOLE         |               |           |         |      |        |
| RELATIVE TO  |               |           |         |      |        |
|              |               |           |         |      |        |
| THE BIPOD    |               |           |         |      |        |
| HOLES.       |               |           |         |      |        |
| VERIFICATION |               |           |         |      |        |
| OF ICD       |               |           |         |      |        |
| REQUIREMENTS |               |           |         |      |        |
| SHALL ALSO   |               |           |         |      |        |
| BE MADE ON   |               |           |         |      |        |
|              |               |           |         |      |        |
| THE BIPOD    |               |           |         |      |        |
| ATTACH       |               |           |         |      |        |
| POINTS.      |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| STATEMENT    |               |           |         |      |        |
| THE FORWARD  |               |           |         |      |        |
| DOME         |               |           |         |      |        |
| TOLERANCES   |               |           |         |      |        |
|              |               |           |         |      |        |
| ARE THE      |               |           |         |      |        |
| FOLLOWING    |               |           |         |      |        |
| F/L TO BOLT  |               |           |         |      |        |
| FLANGE HOLE  |               |           |         |      |        |
| (+/- .050),  |               |           |         |      |        |
| BIPOD TO     |               |           |         |      |        |
| BOLT         |               |           |         |      |        |
|              |               |           |         |      |        |
| FLANGE HOLE  |               |           |         |      |        |
| (+/- .050),  |               |           |         |      |        |
| F/L TO BIPOD |               |           |         |      |        |
| (+/- .060)   |               |           |         |      |        |
| (REFERENCE   |               |           |         |      |        |
| MEMORANDUM   |               |           |         |      |        |
|              |               |           |         |      |        |
| FROM D.      |               |           |         |      |        |
| WHITCHURCH   |               |           |         |      |        |
| TO C. VOGEL, |               |           |         |      |        |
| DATED JULY   |               |           |         |      |        |
| 9, 1987).    |               |           |         |      |        |
| CAUSE AND    |               |           |         |      |        |
|              |               |           |         |      |        |
| CORRECTIVE   |               |           |         |      |        |
| ACTION       |               |           |         |      |        |
| SUMMARY THIS |               |           |         |      |        |
| CAPS         |               |           |         |      |        |
| ADDRESSED    |               |           |         |      |        |
| TWO PRIMARY  |               |           |         |      |        |
| PROBLEMS.    |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| MISALIGNMENT |               |           |         |      |        |
| OF THE       |               |           |         |      |        |
| FORWARD TO   |               |           |         |      |        |
| AFT SRB      |               |           |         |      |        |
| FITTINGS,    |               |           |         |      |        |
| AND THE      |               |           |         |      |        |
| MISALIGNMENT |               |           |         |      |        |
|              |               |           |         |      |        |
| OF THE       |               |           |         |      |        |
| BARRELS AND  |               |           |         |      |        |
| T-RINGS IN   |               |           |         |      |        |
| THE LH2      |               |           |         |      |        |
| TANK. THE    |               |           |         |      |        |
| FIRST, SRB   |               |           |         |      |        |
|              |               |           |         |      |        |
| M            |               |           |         |      |        |
| ISALIGNMENT, |               |           |         |      |        |
| WAS CAUSED   |               |           |         |      |        |
| BY           |               |           |         |      |        |
| MISCLOCKING  |               |           |         |      |        |
| THE LH2      |               |           |         |      |        |
| FORWARD      |               |           |         |      |        |
| DOME. THE    |               |           |         |      |        |
|              |               |           |         |      |        |
| PROBLEM WAS  |               |           |         |      |        |
| CORRECTED BY |               |           |         |      |        |
| IMPROVING    |               |           |         |      |        |
| CLOCKING AND |               |           |         |      |        |
| TACK WELDING |               |           |         |      |        |
|              |               |           |         |      |        |
| PROCEDURES.  |               |           |         |      |        |
| HIGHER       |               |           |         |      |        |
| MANDREL      |               |           |         |      |        |
| PRESSURES    |               |           |         |      |        |
| WERE         |               |           |         |      |        |
| IMPLEMENTED  |               |           |         |      |        |
| TO MINIMIZE  |               |           |         |      |        |
|              |               |           |         |      |        |
| OFFSET       |               |           |         |      |        |
| BETWEEN THE  |               |           |         |      |        |
| FORWARD DOME |               |           |         |      |        |
| AND BARREL   |               |           |         |      |        |
| #4 PRIOR TO  |               |           |         |      |        |
| TACK WELDING |               |           |         |      |        |
|              |               |           |         |      |        |
| TACK WELDING |               |           |         |      |        |
| WAS CHANGED  |               |           |         |      |        |
| TO BEGIN     |               |           |         |      |        |
| DIRECTLY AT  |               |           |         |      |        |
| THE BOTTOM   |               |           |         |      |        |
| AND WORK     |               |           |         |      |        |
|              |               |           |         |      |        |
| UPWARDS      |               |           |         |      |        |
| S            |               |           |         |      |        |
| YMMETRICALLY |               |           |         |      |        |
| ON EITHER    |               |           |         |      |        |
| SIDE AS FAR  |               |           |         |      |        |
| AS POSSIBLE  |               |           |         |      |        |
| PRIOR TO     |               |           |         |      |        |
|              |               |           |         |      |        |
| ROTATING THE |               |           |         |      |        |
| TANK.        |               |           |         |      |        |
| CORRECTIVE   |               |           |         |      |        |
| ACTION WAS   |               |           |         |      |        |
| IMPLEMENTED  |               |           |         |      |        |
| AS OF        |               |           |         |      |        |
| LWT-12. THE  |               |           |         |      |        |
|              |               |           |         |      |        |
| SECOND       |               |           |         |      |        |
| PROBLEM, LH2 |               |           |         |      |        |
| BARREL AND   |               |           |         |      |        |
| T-RING       |               |           |         |      |        |
| M            |               |           |         |      |        |
| ISALIGNMENT, |               |           |         |      |        |
| WAS CAUSED   |               |           |         |      |        |
| BY           |               |           |         |      |        |
|              |               |           |         |      |        |
| MULTIPLE     |               |           |         |      |        |
| FACTORS. THE |               |           |         |      |        |
| OPTICAL      |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| USED IN THE  |               |           |         |      |        |
| 5019 WELD    |               |           |         |      |        |
| FIXTURE      |               |           |         |      |        |
|              |               |           |         |      |        |
| WAS          |               |           |         |      |        |
| INADEQUATE.  |               |           |         |      |        |
| IT WAS       |               |           |         |      |        |
| IMPROVED     |               |           |         |      |        |
| WITH A       |               |           |         |      |        |
| REDESIGN AS  |               |           |         |      |        |
| OF LWT-20,   |               |           |         |      |        |
| BUT THAT     |               |           |         |      |        |
|              |               |           |         |      |        |
| EFFORT ALSO  |               |           |         |      |        |
| PROVED TO BE |               |           |         |      |        |
| INADEQUATE.  |               |           |         |      |        |
| R            |               |           |         |      |        |
| EPEATABILITY |               |           |         |      |        |
| WAS POOR,    |               |           |         |      |        |
| POSSIBLY     |               |           |         |      |        |
|              |               |           |         |      |        |
| DUE TOTHE    |               |           |         |      |        |
| AWKWARD      |               |           |         |      |        |
| POSITION OF  |               |           |         |      |        |
| THE          |               |           |         |      |        |
| INSTRUMENTS  |               |           |         |      |        |
| DIRECTLY     |               |           |         |      |        |
| UNDERNEATH   |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| TANK.        |               |           |         |      |        |
| CORRECTIVE   |               |           |         |      |        |
| ACTION WAS   |               |           |         |      |        |
| TAKEN BY     |               |           |         |      |        |
| IMPLEMENTING |               |           |         |      |        |
| SCRIBE LINE  |               |           |         |      |        |
| CLOCKING     |               |           |         |      |        |
|              |               |           |         |      |        |
| (IMPLEMENTED |               |           |         |      |        |
| LWT-45).     |               |           |         |      |        |
| ANOTHER      |               |           |         |      |        |
| FACTOR       |               |           |         |      |        |
| RELATING TO  |               |           |         |      |        |
| THE PROBLEM  |               |           |         |      |        |
| WAS THAT     |               |           |         |      |        |
|              |               |           |         |      |        |
| THE .875     |               |           |         |      |        |
| FEEDLINE     |               |           |         |      |        |
| HOLE ON THE  |               |           |         |      |        |
| FORWARD DOME |               |           |         |      |        |
| WAS OFFSET   |               |           |         |      |        |
| RELATIVE TO  |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| INTERFACE    |               |           |         |      |        |
| BOLTING      |               |           |         |      |        |
| FLANGE       |               |           |         |      |        |
| HOLES. THE   |               |           |         |      |        |
| OFFSET WAS   |               |           |         |      |        |
| SUFFICIENT   |               |           |         |      |        |
| ENOUGH TO    |               |           |         |      |        |
|              |               |           |         |      |        |
| CONTRIBUTE   |               |           |         |      |        |
| TO THE       |               |           |         |      |        |
| MISCLOCKING  |               |           |         |      |        |
| PROBLEM.     |               |           |         |      |        |
| CORRECTIVE   |               |           |         |      |        |
| ACTION WAS   |               |           |         |      |        |
| TAKEN BY     |               |           |         |      |        |
|              |               |           |         |      |        |
| IMPLEMENTING |               |           |         |      |        |
| A CHECK TO   |               |           |         |      |        |
| DETERMINE    |               |           |         |      |        |
| THE ACTUAL   |               |           |         |      |        |
| OFFSET OF    |               |           |         |      |        |
| THE .875     |               |           |         |      |        |
| HOLE ON      |               |           |         |      |        |
|              |               |           |         |      |        |
| THE FORWARD  |               |           |         |      |        |
| DOME. THE    |               |           |         |      |        |
| READING WAS  |               |           |         |      |        |
| INCORPORATED |               |           |         |      |        |
| INTO THE     |               |           |         |      |        |
| REFERENCE    |               |           |         |      |        |
| LINE         |               |           |         |      |        |
|              |               |           |         |      |        |
| FROM WHICH   |               |           |         |      |        |
| THEN         |               |           |         |      |        |
| CLOCKING IS  |               |           |         |      |        |
| MEASURED.    |               |           |         |      |        |
| CORRECTIVE   |               |           |         |      |        |
| ACTION WAS   |               |           |         |      |        |
| IMPLEMENTED  |               |           |         |      |        |
|              |               |           |         |      |        |
| AS OF        |               |           |         |      |        |
| LWT-45.      |               |           |         |      |        |
| C            |               |           |         |      |        |
| ONCURRENTLY, |               |           |         |      |        |
| PRODUCTION   |               |           |         |      |        |
| IMPLEMENTED  |               |           |         |      |        |
| STEPS TO     |               |           |         |      |        |
| ASSURE       |               |           |         |      |        |
|              |               |           |         |      |        |
| IMPROVED     |               |           |         |      |        |
| ALIGNMENT    |               |           |         |      |        |
| BETWEEN THE  |               |           |         |      |        |
| .875         |               |           |         |      |        |
| FEEDLINE     |               |           |         |      |        |
| HOLE AND THE |               |           |         |      |        |
| INTERFACE    |               |           |         |      |        |
|              |               |           |         |      |        |
| BOLTING      |               |           |         |      |        |
| FLANGE HOLES |               |           |         |      |        |
| ON THE       |               |           |         |      |        |
| FORWARD      |               |           |         |      |        |
| DOME. THE    |               |           |         |      |        |
| AF           |               |           |         |      |        |
| FECTIVENESSS |               |           |         |      |        |
| OF THE       |               |           |         |      |        |
|              |               |           |         |      |        |
| CORRECTIVE   |               |           |         |      |        |
| ACTION TAKEN |               |           |         |      |        |
| FOR THE      |               |           |         |      |        |
| FIRST        |               |           |         |      |        |
| PROBLEM, SRB |               |           |         |      |        |
| M            |               |           |         |      |        |
| ISALIGNMENT, |               |           |         |      |        |
| WAS          |               |           |         |      |        |
|              |               |           |         |      |        |
| CON- FIRMED  |               |           |         |      |        |
| BY NUMEROUS  |               |           |         |      |        |
| BUILDS FROM  |               |           |         |      |        |
| LWTS 12      |               |           |         |      |        |
| THROUGH 45.  |               |           |         |      |        |
| THE          |               |           |         |      |        |
| CORRECTIVE   |               |           |         |      |        |
|              |               |           |         |      |        |
| ACTION TAKEN |               |           |         |      |        |
| FOR THE      |               |           |         |      |        |
| SECOND PRO-  |               |           |         |      |        |
| BLEM, LH2    |               |           |         |      |        |
| BARREL AND   |               |           |         |      |        |
| T-RING       |               |           |         |      |        |
|              |               |           |         |      |        |
| M            |               |           |         |      |        |
| ISALIGNMENT, |               |           |         |      |        |
| IS DEEMED TO |               |           |         |      |        |
| BE AFFECTIVE |               |           |         |      |        |
| BASED UPON   |               |           |         |      |        |
| EVIDENCE     |               |           |         |      |        |
| SEEN ON      |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-45. THE  |               |           |         |      |        |
| MEASUREMENTS |               |           |         |      |        |
| TAKEN ON     |               |           |         |      |        |
| LWT-45       |               |           |         |      |        |
| CONFIRMED    |               |           |         |      |        |
| THAT THE     |               |           |         |      |        |
| PROCESS WAS  |               |           |         |      |        |
|              |               |           |         |      |        |
| BROUGHT      |               |           |         |      |        |
| UNDER        |               |           |         |      |        |
| CONTROL.     |               |           |         |      |        |
| LWT-45 WAS   |               |           |         |      |        |
| IN TOLERANCE |               |           |         |      |        |
| FOR ALL      |               |           |         |      |        |
| BARRELS AND  |               |           |         |      |        |
|              |               |           |         |      |        |
| T-RINGS AND  |               |           |         |      |        |
| NO LONGER    |               |           |         |      |        |
| WAS THERE    |               |           |         |      |        |
| DATA POINT   |               |           |         |      |        |
| SCATTER AS   |               |           |         |      |        |
| SEEN ON      |               |           |         |      |        |
| PRIOR        |               |           |         |      |        |
|              |               |           |         |      |        |
| EF           |               |           |         |      |        |
| FECTIVITIES. |               |           |         |      |        |
| THERE ARE    |               |           |         |      |        |
| FOURTEEN     |               |           |         |      |        |
| DATA POINTS  |               |           |         |      |        |
| PER          |               |           |         |      |        |
| EFFECTIVITY  |               |           |         |      |        |
| MEASURED     |               |           |         |      |        |
|              |               |           |         |      |        |
| IN           |               |           |         |      |        |
| DETERMINING  |               |           |         |      |        |
| CLOCK- ING   |               |           |         |      |        |
| OF BARRELS   |               |           |         |      |        |
| AND T-RINGS. |               |           |         |      |        |
| THE LARGE    |               |           |         |      |        |
| NUMBER OF    |               |           |         |      |        |
|              |               |           |         |      |        |
| DATA POINTS  |               |           |         |      |        |
| REFLECTS     |               |           |         |      |        |
| RATHER       |               |           |         |      |        |
| ACCURATELY   |               |           |         |      |        |
| THE LEVEL OF |               |           |         |      |        |
| CONTROL THE  |               |           |         |      |        |
|              |               |           |         |      |        |
| CLOCKING     |               |           |         |      |        |
| PROCESS HAS. |               |           |         |      |        |
| THUS, LWT-45 |               |           |         |      |        |
| PROVIDES     |               |           |         |      |        |
| SUFFICIENT   |               |           |         |      |        |
| EVIDENCE OF  |               |           |         |      |        |
|              |               |           |         |      |        |
| CORRECTIVE   |               |           |         |      |        |
| ACTION       |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **MSFC       |               |           |         |      |        |
| Response/C   |               |           |         |      |        |
| oncurrence** |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+

  -----------------------------------------------------------------------
  MSFC Problem Reporting and Corrective Action (PRACA) System

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

  ---------------- ----------------- ---------------- ----------- ----------- ------------
  **MSFC           **IFA#**\         **Contractor     **JSC#**\   **KSC#**\   **EICN#**\
  Report#**\       \--               RPT#**\          \--         \--         \--
  A06858                             S-062                                    

  **Asmnt Part#**\ **Asmnt Part      **Asmnt                                  
  80911000000      Name**\           Serial/Lot#**\                           
                   LH2 TANK          LWT-6                                    

  **HCRIT CD**\    **FCRIT CD**\     **CAUSE CD**\    **FAIL                  
  \--              1                 DH - DES-HDW     MODE**\                 
                                                      MS - STRUCT             

  **Asmnt FMEA**\  **Asmnt FM**\     **FMEA CSE**\    **FMEA                  
  6.2.1.1          1                 D                SCSE**\                 
                                                      2                       

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