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

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

+--------------+---------------+----------+---------+------+--------+
| **MSFC       | **In-Flight   | **Co     | **      | *    |        |
| Record \#**\ | Anomaly       | ntractor | JSC#**\ | *KSC |        |
| A09950       | Number**\     | Report   | \--     | #**\ |        |
|              | \--           | N        |         | \--  |        |
|              |               | umber**\ |         |      |        |
|              |               | T-053    |         |      |        |
+--------------+---------------+----------+---------+------+--------+
| **Problem    |               |          |         |      |        |
| Title**\     |               |          |         |      |        |
| INADEQUATE   |               |          |         |      |        |
| PROCEDURES   |               |          |         |      |        |
| AND TOOL     |               |          |         |      |        |
| CONTROL      |               |          |         |      |        |
| (PLUG PULL   |               |          |         |      |        |
| HANDLING     |               |          |         |      |        |
| PROCEDURES)  |               |          |         |      |        |
+--------------+---------------+----------+---------+------+--------+
| **EICN#**\   | **ELEMENT**\  | **Contr  | **F     | **   |        |
| \--          | ET            | actor**\ | SCM#**\ | FCRI |        |
|              |               | MMMSS    | \--     | T**\ |        |
|              |               |          |         | 3    |        |
+--------------+---------------+----------+---------+------+--------+
| **HCRIT**\   | **Sys_Lvl**\  | **Misc   |         |      |        |
| \--          | N             | Codes**\ |         |      |        |
|              |               | A        |         |      |        |
|              |               | **(X)**  |         |      |        |
|              |               | B C D E  |         |      |        |
|              |               | F G H I  |         |      |        |
|              |               | J K L M  |         |      |        |
|              |               | N O      |         |      |        |
+--------------+---------------+----------+---------+------+--------+
| *            | **NO          | **       | **SER/  | *    |        |
| *HARDWARE**\ | MENCLATURE**\ | PART#**\ | LOT#**\ | *MAN |        |
| EIM          | N/A           | N/A      | N/A     | UFAC |        |
|              |               |          |         | TURE |        |
|              |               |          |         | R**\ |        |
|              |               |          |         | N/A  |        |
+--------------+---------------+----------+---------+------+--------+
| *            | **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          | TPS PLUG PULL | PI-1518  | N/A     | UFAC |        |
|              | PROC          | & SRI    |         | TURE |        |
|              |               |          |         | R**\ |        |
|              |               |          |         | MMC  |        |
+--------------+---------------+----------+---------+------+--------+
| **Test/      | **Prevailing  | **F /    | **Fail  | **   |        |
| Operation**\ | Condtion**\   | U**\     | Mode**\ | Caus |        |
| L - FLD      | N -           | F        | UC -    | e**\ |        |
|              | INSPECTION    |          | UNSAT   | M    |        |
|              |               |          |         | AP - |        |
|              |               |          |         | MFG- |        |
|              |               |          |         | ASY- |        |
|              |               |          |         | INST |        |
+--------------+---------------+----------+---------+------+--------+
| **System**\  | **Defect**\   | **Mat    | **Work  | **   |        |
| TPS          | \--           | erial**\ | Con     | Fail |        |
|              |               | F -      | tact**\ | Dat  |        |
|              |               | INSUL    | D.      | e**\ |        |
|              |               |          | O\'NEAL | 02   |        |
|              |               |          |         | /18/ |        |
|              |               |          |         | 1986 |        |
+--------------+---------------+----------+---------+------+--------+
| **Received   | **Date        | **FMEA   | **IFA:  | *    |        |
| at MSFC**\   | Isolated**\   | Refe     | Mission | *Mis |        |
| 03/11/1986   | \--           | rence**\ | P       | sion |        |
|              |               | 1.2      | hase**\ | Ela  |        |
|              |               |          | \--     | psed |        |
|              |               |          |         | Tim  |        |
|              |               |          |         | e**\ |        |
|              |               |          |         | \--  |        |
+--------------+---------------+----------+---------+------+--------+
| *            |               | **Sy     |         | **   |        |
| *Location**\ |               | mptom**\ |         | Time |        |
| MAF          |               | UC -     |         | Cycl |        |
|              |               | UNSAT    |         | e**\ |        |
|              |               |          |         | N/A  |        |
+--------------+---------------+----------+---------+------+--------+
| *            |               |          |         |      |        |
| *Effectivity |               |          |         |      |        |
| Text**\      |               |          |         |      |        |
| LWT-31 AND   |               |          |         |      |        |
| SUBSEQUENT   |               |          |         |      |        |
+--------------+---------------+----------+---------+------+--------+
| **Vehicle    |               |          |         |      |        |
| Effectivity  |               |          |         |      |        |
| Codes**      |               |          |         |      |        |
+--------------+---------------+----------+---------+------+--------+
| **Vehicle    | **Vehicle     | *        | **      | *    |        |
| 1**\         | 2**\          | *Vehicle | Vehicle | *Veh |        |
| \--          | \--           | 3**\     | 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 |        |
| 05/16/1990   | 08/02/1988    | \--      | \--     | Code |        |
|              |               |          |         | s**\ |        |
|              |               |          |         | 2 -  |        |
|              |               |          |         | MFG  |        |
|              |               |          |         | \--  |        |
|              |               |          |         | \--  |        |
+--------------+---------------+----------+---------+------+--------+
| **Assignee** |               |          |         |      |        |
+--------------+---------------+----------+---------+------+--------+
| **Design**\  | **Chief       | **S &    | **Pro   | *    |        |
| F. HUNEIDI   | Engineer**\   | MA**\    | ject**\ | *Pro |        |
|              | J. NICHOLS    | R.       | J.      | ject |        |
|              |               | JACKSON  | CA      | MG   |        |
|              |               |          | VALARIS | R**\ |        |
|              |               |          |         | P.   |        |
|              |               |          |         | BRID |        |
|              |               |          |         | WELL |        |
+--------------+---------------+----------+---------+------+--------+
| **Approval** |               |          |         |      |        |
+--------------+---------------+----------+---------+------+--------+
| **Design**\  | **Chief       | **S &    | **Pro   | *    |        |
| A. JACKMAN   | Engineer**\   | MA**\    | ject**\ | *Pro |        |
|              | J. NICHOLS    | R.       | J.      | ject |        |
|              |               | JACKSON  | CA      | MG   |        |
|              |               |          | VALARIS | R**\ |        |
|              |               |          |         | \--  |        |
+--------------+---------------+----------+---------+------+--------+
| **PAC        | **PAC Review  | **MSFC   | **St    | *    |        |
| Assignee**\  | Complete**\   | Closure  | atus**\ | *F/A |        |
| J.EL-IBRAHIM | JE            | Date**\  | C -     | C    |        |
|              |               | 08       | CLOSED  | ompl |        |
|              |               | /16/1988 |         | etio |        |
|              |               |          |         | n**\ |        |
|              |               |          |         | \--  |        |
+--------------+---------------+----------+---------+------+--------+
| **Problem    | **SEV**\      | *        | **      | **O  |        |
| Type**\      | \--           | *Program | REVL**\ | PRIN |        |
| \--          |               | Name**\  | \--     | 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          |               |          |         |      |        |
| DOCUMENT:    |               |          |         |      |        |
| MARS T-78724 |               |          |         |      |        |
| AN EXCESSIVE |               |          |         |      |        |
| NUMBER OF    |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| NO-TESTS     |               |          |         |      |        |
|              |               |          |         |      |        |
| OCCURRED ON  |               |          |         |      |        |
| THE LWT-31   |               |          |         |      |        |
| FORWARD      |               |          |         |      |        |
| OGIVE. THE   |               |          |         |      |        |
| RESULTING    |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| REPAIRS      |               |          |         |      |        |
|              |               |          |         |      |        |
| WERE         |               |          |         |      |        |
| SUBSTANDARD  |               |          |         |      |        |
| AND SRI      |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
| WERE         |               |          |         |      |        |
| VIOLATED.    |               |          |         |      |        |
| (PREVIOUS    |               |          |         |      |        |
| CAPS         |               |          |         |      |        |
|              |               |          |         |      |        |
| WITH THIS    |               |          |         |      |        |
| TYPE PROBLEM |               |          |         |      |        |
| WAS T-038)   |               |          |         |      |        |
+--------------+---------------+----------+---------+------+--------+
| **Contractor |               |          |         |      |        |
| In           |               |          |         |      |        |
| vestigation/ |               |          |         |      |        |
| Resolution** |               |          |         |      |        |
|              |               |          |         |      |        |
| CAUSE:       |               |          |         |      |        |
| DEFECTIVE    |               |          |         |      |        |
| TOOLING,     |               |          |         |      |        |
| DEFFICIENT   |               |          |         |      |        |
| PROCEDURES   |               |          |         |      |        |
| AND OPERATOR |               |          |         |      |        |
| ERROR        |               |          |         |      |        |
|              |               |          |         |      |        |
| 3/12/86      |               |          |         |      |        |
| GENERAL -    |               |          |         |      |        |
| WHILE LWT-31 |               |          |         |      |        |
| WAS IN FINAL |               |          |         |      |        |
| ASSEMBLY,    |               |          |         |      |        |
| EXTENSIVE    |               |          |         |      |        |
| DAMAGE       |               |          |         |      |        |
|              |               |          |         |      |        |
| WAS DONE TO  |               |          |         |      |        |
| THE          |               |          |         |      |        |
| FOOTPRINT    |               |          |         |      |        |
| AREAS ON THE |               |          |         |      |        |
| FORWARD      |               |          |         |      |        |
| OGIVE.       |               |          |         |      |        |
| DISCREPANCY  |               |          |         |      |        |
|              |               |          |         |      |        |
| REPORTS WERE |               |          |         |      |        |
| USED INSTEAD |               |          |         |      |        |
| OF MARS. THE |               |          |         |      |        |
| DRS          |               |          |         |      |        |
| IMPLEMENTED  |               |          |         |      |        |
| THE USE OF   |               |          |         |      |        |
| SRI          |               |          |         |      |        |
|              |               |          |         |      |        |
| T-001.       |               |          |         |      |        |
| EVENTUALLY   |               |          |         |      |        |
| THERE WERE   |               |          |         |      |        |
| MORE SRI     |               |          |         |      |        |
| REPAIRS IN   |               |          |         |      |        |
| THIS AREA    |               |          |         |      |        |
| THAN ARE     |               |          |         |      |        |
|              |               |          |         |      |        |
| ALLOWED BY   |               |          |         |      |        |
| THE SRI. THE |               |          |         |      |        |
| SRI          |               |          |         |      |        |
| EXCEEDANCE   |               |          |         |      |        |
| WAS          |               |          |         |      |        |
| DOCUMENTED   |               |          |         |      |        |
| ON MARS      |               |          |         |      |        |
| T-78724      |               |          |         |      |        |
|              |               |          |         |      |        |
| ENGINEERING  |               |          |         |      |        |
| CHOSE TO     |               |          |         |      |        |
| CORE HOLES   |               |          |         |      |        |
| TO VERIFY    |               |          |         |      |        |
| THAT THERE   |               |          |         |      |        |
| WERE NO      |               |          |         |      |        |
| VOIDS OR     |               |          |         |      |        |
|              |               |          |         |      |        |
| DEBONDS IN   |               |          |         |      |        |
| THE REPAIR   |               |          |         |      |        |
| AREAS.       |               |          |         |      |        |
| A            |               |          |         |      |        |
| DDITIONALLY, |               |          |         |      |        |
| PLUG PULLS   |               |          |         |      |        |
| WERE         |               |          |         |      |        |
| PERFORMED    |               |          |         |      |        |
|              |               |          |         |      |        |
| TO VERIFY    |               |          |         |      |        |
| THE          |               |          |         |      |        |
| SURROUNDING  |               |          |         |      |        |
| CPR 488      |               |          |         |      |        |
| INTEGRITY.   |               |          |         |      |        |
| ALL TOTAL,   |               |          |         |      |        |
| TWENTY-FIVE  |               |          |         |      |        |
|              |               |          |         |      |        |
| PLUG PULLS   |               |          |         |      |        |
| AND FIVE     |               |          |         |      |        |
| CORINGS WERE |               |          |         |      |        |
| DONE TO      |               |          |         |      |        |
| VERIFY THE   |               |          |         |      |        |
| CPR          |               |          |         |      |        |
| INTEGRITY    |               |          |         |      |        |
| AND          |               |          |         |      |        |
|              |               |          |         |      |        |
| AND VERIFY   |               |          |         |      |        |
| THAT NO      |               |          |         |      |        |
| DEBONDS OR   |               |          |         |      |        |
| VOIDS        |               |          |         |      |        |
| EXISTED      |               |          |         |      |        |
| WITHIN THE   |               |          |         |      |        |
| INITIAL      |               |          |         |      |        |
| REPAIR       |               |          |         |      |        |
|              |               |          |         |      |        |
| AREAS        |               |          |         |      |        |
|              |               |          |         |      |        |
| THE PLUG     |               |          |         |      |        |
| PULLS AND    |               |          |         |      |        |
| CORINGS WERE |               |          |         |      |        |
| THEN CLOSED  |               |          |         |      |        |
| OUT AND A    |               |          |         |      |        |
| MAJORITY OF  |               |          |         |      |        |
| THE          |               |          |         |      |        |
|              |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| CLOSEOUTS    |               |          |         |      |        |
| WERE FOUND   |               |          |         |      |        |
| TO CONTAIN   |               |          |         |      |        |
| VOIDS AND/OR |               |          |         |      |        |
| DAMAGE       |               |          |         |      |        |
|              |               |          |         |      |        |
| B. THIS CAPS |               |          |         |      |        |
| WILL         |               |          |         |      |        |
| INVESTIGATE  |               |          |         |      |        |
| THE CAUSES   |               |          |         |      |        |
| AND          |               |          |         |      |        |
| DETERMINE    |               |          |         |      |        |
| CORRECTIVE   |               |          |         |      |        |
|              |               |          |         |      |        |
| ACTIONS FOR  |               |          |         |      |        |
| DEFICIENCIES |               |          |         |      |        |
| ENCOUNTERED  |               |          |         |      |        |
| DURING       |               |          |         |      |        |
| TESTING      |               |          |         |      |        |
| CLOSEOUT,    |               |          |         |      |        |
| AND          |               |          |         |      |        |
|              |               |          |         |      |        |
| D            |               |          |         |      |        |
| OCUMENTATION |               |          |         |      |        |
| ON LWT-31    |               |          |         |      |        |
|              |               |          |         |      |        |
| 8/2/88 -     |               |          |         |      |        |
| UPDATE       |               |          |         |      |        |
|              |               |          |         |      |        |
| TASK I       |               |          |         |      |        |
| FAI          |               |          |         |      |        |
| LURE/PROBLEM |               |          |         |      |        |
| I            |               |          |         |      |        |
| NVESTIGATION |               |          |         |      |        |
|              |               |          |         |      |        |
| AN           |               |          |         |      |        |
| I            |               |          |         |      |        |
| NVESTIGATION |               |          |         |      |        |
| HAS          |               |          |         |      |        |
| DETERMINED   |               |          |         |      |        |
| THAT THERE   |               |          |         |      |        |
| WERE THREE   |               |          |         |      |        |
| FACTORS THAT |               |          |         |      |        |
|              |               |          |         |      |        |
| CONTRIBUTED  |               |          |         |      |        |
| TO THE       |               |          |         |      |        |
| PROBLEMS     |               |          |         |      |        |
| ENCOUNTERED  |               |          |         |      |        |
| WITH LWT-31. |               |          |         |      |        |
| THESE        |               |          |         |      |        |
| FACTORS      |               |          |         |      |        |
|              |               |          |         |      |        |
| WERE         |               |          |         |      |        |
| DEFECTIVE    |               |          |         |      |        |
| TOOLING,     |               |          |         |      |        |
| EMPLOYEE     |               |          |         |      |        |
| ERRORS, AND  |               |          |         |      |        |
| PROCEDURE    |               |          |         |      |        |
| DEFICIENCIES |               |          |         |      |        |
|              |               |          |         |      |        |
| IN REGARD TO |               |          |         |      |        |
| THE TOOLING, |               |          |         |      |        |
| IT WAS FOUND |               |          |         |      |        |
| THAT SEVERAL |               |          |         |      |        |
| OF THE TEST  |               |          |         |      |        |
| SAMPLE       |               |          |         |      |        |
|              |               |          |         |      |        |
| MANDRELS     |               |          |         |      |        |
| (PLUG PULL   |               |          |         |      |        |
| BUTTONS)     |               |          |         |      |        |
| USED DID NOT |               |          |         |      |        |
| MEET THE     |               |          |         |      |        |
| TOOLING      |               |          |         |      |        |
| DESIGN       |               |          |         |      |        |
|              |               |          |         |      |        |
| CRITERIA.    |               |          |         |      |        |
| THE          |               |          |         |      |        |
| CROSSPIECE,  |               |          |         |      |        |
| WHERE THE    |               |          |         |      |        |
| PLUG PULLER  |               |          |         |      |        |
| HOOK IS      |               |          |         |      |        |
| ATTACHED,    |               |          |         |      |        |
| WAS          |               |          |         |      |        |
|              |               |          |         |      |        |
| NOT          |               |          |         |      |        |
| CENTERED.    |               |          |         |      |        |
| THIS DEFECT  |               |          |         |      |        |
| CAUSED A     |               |          |         |      |        |
| MISALIGNMENT |               |          |         |      |        |
| TO OCCUR     |               |          |         |      |        |
| DURING THE   |               |          |         |      |        |
|              |               |          |         |      |        |
| PLUG         |               |          |         |      |        |
| PULLING,     |               |          |         |      |        |
| PREVENTING A |               |          |         |      |        |
| GOOD         |               |          |         |      |        |
| P            |               |          |         |      |        |
| ERPENDICULAR |               |          |         |      |        |
| PULL. THIS   |               |          |         |      |        |
| IN TURN      |               |          |         |      |        |
|              |               |          |         |      |        |
| CREATED      |               |          |         |      |        |
| SEVERAL \"NO |               |          |         |      |        |
| TEST\"       |               |          |         |      |        |
| CONDITIONS   |               |          |         |      |        |
|              |               |          |         |      |        |
| EMPLOYEE     |               |          |         |      |        |
| ERROR        |               |          |         |      |        |
| CONTRIBUTED  |               |          |         |      |        |
| TO THE       |               |          |         |      |        |
| PROBLEM BY   |               |          |         |      |        |
| WAY OF THE   |               |          |         |      |        |
| VIOLATION OF |               |          |         |      |        |
|              |               |          |         |      |        |
| THE SRI      |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
| NOT BEING    |               |          |         |      |        |
| RECOGNIZED.  |               |          |         |      |        |
| THIS ERROR   |               |          |         |      |        |
| INITIATED    |               |          |         |      |        |
| THE          |               |          |         |      |        |
|              |               |          |         |      |        |
| CORING AND   |               |          |         |      |        |
| PLUG PULLING |               |          |         |      |        |
| DECISION BY  |               |          |         |      |        |
| ENGINEERING  |               |          |         |      |        |
| THE ASSURE   |               |          |         |      |        |
| THE          |               |          |         |      |        |
| MATERIALS    |               |          |         |      |        |
|              |               |          |         |      |        |
| AFFECTED BY  |               |          |         |      |        |
| THE          |               |          |         |      |        |
| VIOLATIONS   |               |          |         |      |        |
| WERE NOT     |               |          |         |      |        |
| COMPROMISED. |               |          |         |      |        |
| EMPLOYEE     |               |          |         |      |        |
| ERROR AND/OR |               |          |         |      |        |
|              |               |          |         |      |        |
| PRACTICES    |               |          |         |      |        |
| WERE ALSO    |               |          |         |      |        |
| RESPONSIBLE  |               |          |         |      |        |
| FOR THE FACT |               |          |         |      |        |
| THAT DEFECTS |               |          |         |      |        |
| FOUND IN     |               |          |         |      |        |
|              |               |          |         |      |        |
| BUILDING 420 |               |          |         |      |        |
| WERE NOT     |               |          |         |      |        |
| DOCUMENTED   |               |          |         |      |        |
| UPON RECEIPT |               |          |         |      |        |
| OF THE ET    |               |          |         |      |        |
|              |               |          |         |      |        |
| THE THIRD    |               |          |         |      |        |
| CONTRIBUTING |               |          |         |      |        |
| FACTOR WAS   |               |          |         |      |        |
| PROCEDURE    |               |          |         |      |        |
| D            |               |          |         |      |        |
| EFICIENCIES. |               |          |         |      |        |
| IN NONE OF   |               |          |         |      |        |
|              |               |          |         |      |        |
| THE WORK     |               |          |         |      |        |
| PROCEDURES   |               |          |         |      |        |
| WERE THERE   |               |          |         |      |        |
| ANY          |               |          |         |      |        |
| REFERENCE AS |               |          |         |      |        |
| TO WHAT      |               |          |         |      |        |
| AREAS OF THE |               |          |         |      |        |
| ET           |               |          |         |      |        |
|              |               |          |         |      |        |
| ARE          |               |          |         |      |        |
| CONSIDERED   |               |          |         |      |        |
| MOST         |               |          |         |      |        |
| CRITICAL.    |               |          |         |      |        |
| THUS, NO     |               |          |         |      |        |
| SPECIAL      |               |          |         |      |        |
| A            |               |          |         |      |        |
| UTHORIZATION |               |          |         |      |        |
| OR           |               |          |         |      |        |
|              |               |          |         |      |        |
| CO           |               |          |         |      |        |
| NSIDERATIONS |               |          |         |      |        |
| WERE GIVEN   |               |          |         |      |        |
| WHEN WORK OF |               |          |         |      |        |
| THIS EXTENT  |               |          |         |      |        |
| WAS DONE IN  |               |          |         |      |        |
| THIS         |               |          |         |      |        |
|              |               |          |         |      |        |
| AREA. IN     |               |          |         |      |        |
| EFFECT, SOME |               |          |         |      |        |
| DEGREE OF    |               |          |         |      |        |
| CONTROL WAS  |               |          |         |      |        |
| LOST. IT WAS |               |          |         |      |        |
| ALSO FOUND   |               |          |         |      |        |
|              |               |          |         |      |        |
| THAT THE     |               |          |         |      |        |
| WORK         |               |          |         |      |        |
| DOCUMENTS    |               |          |         |      |        |
| (PIS AND     |               |          |         |      |        |
| SRIS) WERE   |               |          |         |      |        |
| MINIMALLY    |               |          |         |      |        |
| ADEQUATE,    |               |          |         |      |        |
| BUT          |               |          |         |      |        |
|              |               |          |         |      |        |
| SOMEWHAT     |               |          |         |      |        |
| LACKING IN   |               |          |         |      |        |
| I            |               |          |         |      |        |
| NSTRUCTIONAL |               |          |         |      |        |
| DETAIL       |               |          |         |      |        |
|              |               |          |         |      |        |
| TASK II      |               |          |         |      |        |
| CORRECTIVE   |               |          |         |      |        |
| ACTION       |               |          |         |      |        |
|              |               |          |         |      |        |
| A. REVIEW    |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| CORING TOOL  |               |          |         |      |        |
| AND PLUG     |               |          |         |      |        |
| PULL TEST    |               |          |         |      |        |
| SAMPLE       |               |          |         |      |        |
| MANDREL      |               |          |         |      |        |
|              |               |          |         |      |        |
| DRAWINGS TO  |               |          |         |      |        |
| VERIFTY      |               |          |         |      |        |
| ADEQUACY OF  |               |          |         |      |        |
| VENDOR AND   |               |          |         |      |        |
| MAF          |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| THIS TASK    |               |          |         |      |        |
| WAS COMPLETE |               |          |         |      |        |
| IN           |               |          |         |      |        |
| CONJUNCTION  |               |          |         |      |        |
| WITH TASK    |               |          |         |      |        |
| II.C BELOW   |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| B. PURGE ALL |               |          |         |      |        |
| AREAS OF     |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| CORING TOOLS |               |          |         |      |        |
| AND PLUG     |               |          |         |      |        |
| PULL TEST    |               |          |         |      |        |
| SAMPLE       |               |          |         |      |        |
|              |               |          |         |      |        |
| MANDRELS AND |               |          |         |      |        |
| INSPECT FOR  |               |          |         |      |        |
| CONFORMANCE  |               |          |         |      |        |
| TO DRAWING   |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| ALL AREAS    |               |          |         |      |        |
| WERE PURGED  |               |          |         |      |        |
| OF TEST      |               |          |         |      |        |
| SAMPLE       |               |          |         |      |        |
| MANDRELS     |               |          |         |      |        |
| (            |               |          |         |      |        |
| TL-0931-XXX) |               |          |         |      |        |
| AND CORING   |               |          |         |      |        |
|              |               |          |         |      |        |
| TOOLS        |               |          |         |      |        |
| (            |               |          |         |      |        |
| TL-0377-XXX) |               |          |         |      |        |
| AND          |               |          |         |      |        |
| REINSPECTED  |               |          |         |      |        |
| FOR          |               |          |         |      |        |
| COMPLIANCE   |               |          |         |      |        |
| TO           |               |          |         |      |        |
| ENGINEERING  |               |          |         |      |        |
|              |               |          |         |      |        |
| DRAWING      |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
|              |               |          |         |      |        |
| FOUR HUNDRED |               |          |         |      |        |
| FIFTY-THREE  |               |          |         |      |        |
| TEST SAMPLE  |               |          |         |      |        |
| MANDRELS     |               |          |         |      |        |
| WERE         |               |          |         |      |        |
| INSPECTED.   |               |          |         |      |        |
| OF THESE,    |               |          |         |      |        |
|              |               |          |         |      |        |
| 351 TEST     |               |          |         |      |        |
| SAMPLE       |               |          |         |      |        |
| MANDRELS     |               |          |         |      |        |
| WERE EITHER  |               |          |         |      |        |
| SCRAPPED OR  |               |          |         |      |        |
| RETURNED TO  |               |          |         |      |        |
| VENDOR       |               |          |         |      |        |
|              |               |          |         |      |        |
| FOR REWORK   |               |          |         |      |        |
|              |               |          |         |      |        |
| NO RECORDS   |               |          |         |      |        |
| WERE FOUND   |               |          |         |      |        |
| THAT         |               |          |         |      |        |
| INDICATE ANY |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| CORING TOOLS |               |          |         |      |        |
| WERE         |               |          |         |      |        |
|              |               |          |         |      |        |
| REJECTED     |               |          |         |      |        |
| DURING THIS  |               |          |         |      |        |
| REINSPECTION |               |          |         |      |        |
| EFFORT       |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
| REJECTION    |               |          |         |      |        |
| TAGS         |               |          |         |      |        |
|              |               |          |         |      |        |
| R-009323,    |               |          |         |      |        |
| R-008325,    |               |          |         |      |        |
| AND          |               |          |         |      |        |
| R-008326)    |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| C. QUALITY   |               |          |         |      |        |
| ENGINEERING  |               |          |         |      |        |
| TO REVIEW    |               |          |         |      |        |
| ESTABLISHING |               |          |         |      |        |
| A RECEIVING  |               |          |         |      |        |
| ACCEPTANCE   |               |          |         |      |        |
|              |               |          |         |      |        |
| PLAN (RAP)   |               |          |         |      |        |
| FOR ALL      |               |          |         |      |        |
| INCOMING     |               |          |         |      |        |
| TEST SAMPLE  |               |          |         |      |        |
| MANDRELS AND |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| CORING       |               |          |         |      |        |
|              |               |          |         |      |        |
| TOOLS        |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| RAPS HAVE    |               |          |         |      |        |
| BEEN         |               |          |         |      |        |
| GENERATED    |               |          |         |      |        |
| FOR TEST     |               |          |         |      |        |
| SAMPLE       |               |          |         |      |        |
| MANDRELS AND |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
|              |               |          |         |      |        |
| CORING TOOLS |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
| TL-0931 AND  |               |          |         |      |        |
| TL-0377,     |               |          |         |      |        |
| R            |               |          |         |      |        |
| ESPECTIVELY) |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| D. REVIEW    |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| PROCEDURES   |               |          |         |      |        |
| FOR ADEQUACY |               |          |         |      |        |
| OF           |               |          |         |      |        |
| INSTRUCTION  |               |          |         |      |        |
| AND          |               |          |         |      |        |
|              |               |          |         |      |        |
| INSPECTION   |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| THE PLUG     |               |          |         |      |        |
| PULL         |               |          |         |      |        |
| PROCEDURE    |               |          |         |      |        |
| OP-13M50-FT, |               |          |         |      |        |
| \"OPERATION  |               |          |         |      |        |
| OF PORTABLE  |               |          |         |      |        |
| 1\" BOND     |               |          |         |      |        |
|              |               |          |         |      |        |
| TENSION      |               |          |         |      |        |
| TESTER\",    |               |          |         |      |        |
| HAS BEEN     |               |          |         |      |        |
| REVIEWED AND |               |          |         |      |        |
| DETERMINED   |               |          |         |      |        |
| TO BE        |               |          |         |      |        |
| ADEQUATE     |               |          |         |      |        |
|              |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
| INTEROFFICE  |               |          |         |      |        |
| MEMORANDUM   |               |          |         |      |        |
| 3741-87-089) |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| E. ATTEND    |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| TRAINING     |               |          |         |      |        |
| CLASSES TO   |               |          |         |      |        |
| DETERMINE    |               |          |         |      |        |
| ADEQUCY OF   |               |          |         |      |        |
|              |               |          |         |      |        |
| C            |               |          |         |      |        |
| ERTIFICATION |               |          |         |      |        |
| CLASS        |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| THE \"PLUG   |               |          |         |      |        |
| PULL         |               |          |         |      |        |
| TESTING\"    |               |          |         |      |        |
| C            |               |          |         |      |        |
| ERTIFICATION |               |          |         |      |        |
| COURSE, NO.  |               |          |         |      |        |
| X-552, HAS   |               |          |         |      |        |
| BEEN         |               |          |         |      |        |
|              |               |          |         |      |        |
| REVIEWED AND |               |          |         |      |        |
| REVISED AS   |               |          |         |      |        |
| OF JANUARY,  |               |          |         |      |        |
| 1987. THE    |               |          |         |      |        |
| REVISION     |               |          |         |      |        |
| INCLUDES     |               |          |         |      |        |
|              |               |          |         |      |        |
| INSTRUCTIONS |               |          |         |      |        |
| IN THE USE   |               |          |         |      |        |
| OF THE       |               |          |         |      |        |
| DIGITAL      |               |          |         |      |        |
| DISPLAY      |               |          |         |      |        |
| INDICATED    |               |          |         |      |        |
| PLUG PULLER  |               |          |         |      |        |
|              |               |          |         |      |        |
| AS WELL AS   |               |          |         |      |        |
| AREAS        |               |          |         |      |        |
| DESIGNATED   |               |          |         |      |        |
| FOR SPECIAL  |               |          |         |      |        |
| EMPHASIS BY  |               |          |         |      |        |
| TRAINING     |               |          |         |      |        |
|              |               |          |         |      |        |
| PERSONNEL    |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| F. PROVIDE   |               |          |         |      |        |
| DATA TO SHOW |               |          |         |      |        |
| THE EFFECT   |               |          |         |      |        |
| OF THE       |               |          |         |      |        |
| DEFECTIVE    |               |          |         |      |        |
| TEST PLUGS   |               |          |         |      |        |
| AND          |               |          |         |      |        |
|              |               |          |         |      |        |
| ANGULAR      |               |          |         |      |        |
| CORES AS     |               |          |         |      |        |
| GOOD PLUG    |               |          |         |      |        |
| PULL TEST    |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| TPS          |               |          |         |      |        |
| ENGINEERING  |               |          |         |      |        |
| CONDUCTED A  |               |          |         |      |        |
| LARGE NUMBER |               |          |         |      |        |
| OF PLUG PULL |               |          |         |      |        |
| TESTS (216)  |               |          |         |      |        |
| IN           |               |          |         |      |        |
|              |               |          |         |      |        |
| AN ATTEMPT   |               |          |         |      |        |
| TO SHOW WHAT |               |          |         |      |        |
| EFFECT       |               |          |         |      |        |
| DEFECTIVE    |               |          |         |      |        |
| TEST PLUG OR |               |          |         |      |        |
| ANGULAR      |               |          |         |      |        |
| CORING       |               |          |         |      |        |
|              |               |          |         |      |        |
| WOULD HAVE   |               |          |         |      |        |
| ON TEST      |               |          |         |      |        |
| DATA. THE    |               |          |         |      |        |
| RESULTS OF   |               |          |         |      |        |
| THESE TESTS  |               |          |         |      |        |
| WERE         |               |          |         |      |        |
| INCONCLUSIVE |               |          |         |      |        |
|              |               |          |         |      |        |
| DUE TO A     |               |          |         |      |        |
| LARGE        |               |          |         |      |        |
| VARIATION    |               |          |         |      |        |
| OBTAINED IN  |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| VALUES. IT   |               |          |         |      |        |
| WAS NOT      |               |          |         |      |        |
|              |               |          |         |      |        |
| CLEAR        |               |          |         |      |        |
| WHETHER      |               |          |         |      |        |
| THESE        |               |          |         |      |        |
| VARIATIONS   |               |          |         |      |        |
| WERE DUE TO  |               |          |         |      |        |
| TOOL         |               |          |         |      |        |
| DESIGN/USE,  |               |          |         |      |        |
| MATERIAL     |               |          |         |      |        |
|              |               |          |         |      |        |
| PROPERTIES,  |               |          |         |      |        |
| OR A         |               |          |         |      |        |
| COMBINATION  |               |          |         |      |        |
| OF BOTH.     |               |          |         |      |        |
| HOWEVER,     |               |          |         |      |        |
| SEVERAL      |               |          |         |      |        |
| OBSERVATIONS |               |          |         |      |        |
|              |               |          |         |      |        |
| OF NOTE WERE |               |          |         |      |        |
| MADE. THESE  |               |          |         |      |        |
| INCLUDED     |               |          |         |      |        |
| THAT, EVEN   |               |          |         |      |        |
| UNDER        |               |          |         |      |        |
| LABORATORY   |               |          |         |      |        |
|              |               |          |         |      |        |
| CONDITIONS,  |               |          |         |      |        |
| UNACCEPTABLE |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| VALUES CAN   |               |          |         |      |        |
| OCCUR EVEN   |               |          |         |      |        |
| ON \"GOOD\"  |               |          |         |      |        |
|              |               |          |         |      |        |
| MATERIAL,    |               |          |         |      |        |
| THAT         |               |          |         |      |        |
| MATERIAL     |               |          |         |      |        |
| STRENGTH     |               |          |         |      |        |
| DIFFERENCES  |               |          |         |      |        |
| CAN BE       |               |          |         |      |        |
| EXPECTED     |               |          |         |      |        |
| DEPENDENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| UPON THE     |               |          |         |      |        |
| MATERIAL     |               |          |         |      |        |
| THICKNESSES  |               |          |         |      |        |
| BEING TESTED |               |          |         |      |        |
| AND THAT     |               |          |         |      |        |
| DRILLING OFF |               |          |         |      |        |
|              |               |          |         |      |        |
| NOMINAL      |               |          |         |      |        |
| CORES (LESS  |               |          |         |      |        |
| THAN 1\"     |               |          |         |      |        |
| DIAMETER)    |               |          |         |      |        |
| WILL CAUSE A |               |          |         |      |        |
| REDUCTION IN |               |          |         |      |        |
|              |               |          |         |      |        |
| APPARENT     |               |          |         |      |        |
| MATERIAL     |               |          |         |      |        |
| STRENGTH     |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
| INTEROFFICE  |               |          |         |      |        |
| MEMORANDUM   |               |          |         |      |        |
| 3571-86-     |               |          |         |      |        |
|              |               |          |         |      |        |
| 44\)         |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| G. ESTABLISH |               |          |         |      |        |
| AN APPROVAL  |               |          |         |      |        |
| PROCEDURE    |               |          |         |      |        |
| FOR PULLING  |               |          |         |      |        |
| UNPLANNED    |               |          |         |      |        |
| PLUGS IN     |               |          |         |      |        |
|              |               |          |         |      |        |
| HIGH HEAT    |               |          |         |      |        |
| AND DEBRIS   |               |          |         |      |        |
| CRITICAL     |               |          |         |      |        |
| ZONES        |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| AN APPROVAL  |               |          |         |      |        |
| PROCEDURE    |               |          |         |      |        |
| WAS          |               |          |         |      |        |
| ESTABLISHED  |               |          |         |      |        |
| THROUGH THE  |               |          |         |      |        |
| RELEASE OF   |               |          |         |      |        |
| OD 453231    |               |          |         |      |        |
|              |               |          |         |      |        |
| THIS OD      |               |          |         |      |        |
| IDENTIFIED   |               |          |         |      |        |
| THOSE        |               |          |         |      |        |
| ACTIONS FOR  |               |          |         |      |        |
| IM           |               |          |         |      |        |
| PLEMENTATION |               |          |         |      |        |
| DEEMED       |               |          |         |      |        |
| NECESSARY    |               |          |         |      |        |
|              |               |          |         |      |        |
| FOR THE      |               |          |         |      |        |
| CONTROL OF   |               |          |         |      |        |
| R            |               |          |         |      |        |
| EWORK/REPAIR |               |          |         |      |        |
| TO THE       |               |          |         |      |        |
| CRITICAL TPS |               |          |         |      |        |
| AREAS ON THE |               |          |         |      |        |
| ET           |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| H. ESTABLISH |               |          |         |      |        |
| A SPECIFIC   |               |          |         |      |        |
| PROCEDURE    |               |          |         |      |        |
| FOR          |               |          |         |      |        |
| D            |               |          |         |      |        |
| ETERMINATION |               |          |         |      |        |
| OF PLUG PULL |               |          |         |      |        |
| \"NO         |               |          |         |      |        |
|              |               |          |         |      |        |
| TESTS\"      |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| THE PLUG     |               |          |         |      |        |
| PULL \"NO    |               |          |         |      |        |
| TEST\"       |               |          |         |      |        |
| CRITERIA ARE |               |          |         |      |        |
| IDENTIFIED   |               |          |         |      |        |
| IN PRODUCT   |               |          |         |      |        |
| ASSURANCE    |               |          |         |      |        |
|              |               |          |         |      |        |
| DIRECTIVE    |               |          |         |      |        |
| 3725-001 AND |               |          |         |      |        |
| OP-13M50-FT. |               |          |         |      |        |
| THESE        |               |          |         |      |        |
| CRITERIA     |               |          |         |      |        |
| WERE         |               |          |         |      |        |
| REVIEWED     |               |          |         |      |        |
|              |               |          |         |      |        |
| AND          |               |          |         |      |        |
| DETERMINED   |               |          |         |      |        |
| TO BE        |               |          |         |      |        |
| ADEQUATE     |               |          |         |      |        |
|              |               |          |         |      |        |
| NOTE:        |               |          |         |      |        |
| PRODUCT      |               |          |         |      |        |
| ASSURANCE    |               |          |         |      |        |
| PROCEDURE    |               |          |         |      |        |
| 17.8.7 WAS   |               |          |         |      |        |
| CREATED IN   |               |          |         |      |        |
| AUGUST 1986  |               |          |         |      |        |
| FOR          |               |          |         |      |        |
|              |               |          |         |      |        |
| TESTING TPS  |               |          |         |      |        |
| MATERIALS    |               |          |         |      |        |
| AND INCLUDE  |               |          |         |      |        |
| \"NO TEST\"  |               |          |         |      |        |
| CRITERIA AS  |               |          |         |      |        |
| SPECIFIED IN |               |          |         |      |        |
|              |               |          |         |      |        |
| P.A.D.       |               |          |         |      |        |
| 3725-001.    |               |          |         |      |        |
| P.A.D.       |               |          |         |      |        |
| 3740-065 WAS |               |          |         |      |        |
| ISSUED IN    |               |          |         |      |        |
| APRIL 1988   |               |          |         |      |        |
| TO FURTHER   |               |          |         |      |        |
|              |               |          |         |      |        |
| UPDATE \"NO  |               |          |         |      |        |
| TEST\"       |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| I.           |               |          |         |      |        |
| RE-EVALUATE  |               |          |         |      |        |
| THE SRI      |               |          |         |      |        |
| IM           |               |          |         |      |        |
| PLEMENTATION |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
| IN HIGH HEAT |               |          |         |      |        |
| AND          |               |          |         |      |        |
|              |               |          |         |      |        |
| DEBRIS       |               |          |         |      |        |
| CRITICAL     |               |          |         |      |        |
| ZONES        |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| STANDARD     |               |          |         |      |        |
| REPAIR       |               |          |         |      |        |
| INSTRUCTIONS |               |          |         |      |        |
| (SRI)        |               |          |         |      |        |
| SPECIFICALLY |               |          |         |      |        |
| ADDRESSING   |               |          |         |      |        |
| THE TPS      |               |          |         |      |        |
|              |               |          |         |      |        |
| REPAIRS TO   |               |          |         |      |        |
| HIGH HEAT    |               |          |         |      |        |
| AND DEBRIS   |               |          |         |      |        |
| CRITICAL     |               |          |         |      |        |
| ZONES HAVE   |               |          |         |      |        |
| BEEN         |               |          |         |      |        |
| RELEASED     |               |          |         |      |        |
|              |               |          |         |      |        |
| SRI T-009    |               |          |         |      |        |
| (REVISION 1) |               |          |         |      |        |
| ADDRESSES    |               |          |         |      |        |
| THOSE        |               |          |         |      |        |
| REPAIRS TO   |               |          |         |      |        |
| BE PERFORMED |               |          |         |      |        |
|              |               |          |         |      |        |
| ON THE LH2   |               |          |         |      |        |
| AFT DOME,    |               |          |         |      |        |
| STATION 2058 |               |          |         |      |        |
| TO STATION   |               |          |         |      |        |
| 2173. SRI    |               |          |         |      |        |
| T-010        |               |          |         |      |        |
|              |               |          |         |      |        |
| (REVISION    |               |          |         |      |        |
| NEW)         |               |          |         |      |        |
| ADDRESSES    |               |          |         |      |        |
| THOSE        |               |          |         |      |        |
| REPAIRS TO   |               |          |         |      |        |
| BE PERFORMED |               |          |         |      |        |
| ON THE L02   |               |          |         |      |        |
|              |               |          |         |      |        |
| TANK OGIVE   |               |          |         |      |        |
| AREA,        |               |          |         |      |        |
| STATION 371  |               |          |         |      |        |
| TO STATION   |               |          |         |      |        |
| 470. EACH OF |               |          |         |      |        |
| THESE SRI\'S |               |          |         |      |        |
|              |               |          |         |      |        |
| ESTABLISH    |               |          |         |      |        |
| THE          |               |          |         |      |        |
| CONTROLS,    |               |          |         |      |        |
| MATERIALS,   |               |          |         |      |        |
| EQUIPMENT,   |               |          |         |      |        |
| SAFETY       |               |          |         |      |        |
| PROCEDURES   |               |          |         |      |        |
| AND          |               |          |         |      |        |
|              |               |          |         |      |        |
| TECHNIQUES   |               |          |         |      |        |
| TO BE        |               |          |         |      |        |
| FOLLOWED     |               |          |         |      |        |
| DURING THE   |               |          |         |      |        |
| PERFORMANCE  |               |          |         |      |        |
| OF REPAIRS   |               |          |         |      |        |
| IN THESE     |               |          |         |      |        |
|              |               |          |         |      |        |
| CRITICAL     |               |          |         |      |        |
| AREAS        |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| J. PROVIDE   |               |          |         |      |        |
| CAUSE AND    |               |          |         |      |        |
| CORRECTIVE   |               |          |         |      |        |
| ACTION FOR   |               |          |         |      |        |
| VIOLATING    |               |          |         |      |        |
| LATENT       |               |          |         |      |        |
| DEFECT       |               |          |         |      |        |
|              |               |          |         |      |        |
| D            |               |          |         |      |        |
| OCUMENTATION |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| PRIOR TO     |               |          |         |      |        |
| LWT-32, NO   |               |          |         |      |        |
| RECEIVING    |               |          |         |      |        |
| INSPECTION   |               |          |         |      |        |
| WAS          |               |          |         |      |        |
| PERFORMED ON |               |          |         |      |        |
| ETS COMING   |               |          |         |      |        |
|              |               |          |         |      |        |
| TO BUILDING  |               |          |         |      |        |
| 420 FROM     |               |          |         |      |        |
| FINAL        |               |          |         |      |        |
| ASSEMBLY.    |               |          |         |      |        |
| WORK WAS     |               |          |         |      |        |
| PERFORMED ON |               |          |         |      |        |
| THE NOSE     |               |          |         |      |        |
|              |               |          |         |      |        |
| CONE PRIOR   |               |          |         |      |        |
| TO ANY       |               |          |         |      |        |
| D            |               |          |         |      |        |
| ISCREPANCIES |               |          |         |      |        |
| BEING        |               |          |         |      |        |
| WRITTEN AND, |               |          |         |      |        |
| AS A RESULT, |               |          |         |      |        |
| ANY          |               |          |         |      |        |
|              |               |          |         |      |        |
| D            |               |          |         |      |        |
| ISCREPANCIES |               |          |         |      |        |
| THEN FOUND   |               |          |         |      |        |
| WOULD BE     |               |          |         |      |        |
| CHARGED      |               |          |         |      |        |
| AGAINST      |               |          |         |      |        |
| BUILDING 420 |               |          |         |      |        |
| AND          |               |          |         |      |        |
|              |               |          |         |      |        |
| NOT AS       |               |          |         |      |        |
| LATENT       |               |          |         |      |        |
| DEFECTS      |               |          |         |      |        |
|              |               |          |         |      |        |
| A SHAKEDOWN  |               |          |         |      |        |
| INSPECTION   |               |          |         |      |        |
| IS NOW       |               |          |         |      |        |
| PERFORMED BY |               |          |         |      |        |
| FINAL        |               |          |         |      |        |
| ASSEMBLY AND |               |          |         |      |        |
| ALL          |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEMS FOUND  |               |          |         |      |        |
| ARE WORKED   |               |          |         |      |        |
| PRIOR TO     |               |          |         |      |        |
| SHIPMENT IN  |               |          |         |      |        |
| BUILDING     |               |          |         |      |        |
| 420. IN      |               |          |         |      |        |
|              |               |          |         |      |        |
| ADDITION,    |               |          |         |      |        |
| BUILDING 420 |               |          |         |      |        |
| PERFORMS A   |               |          |         |      |        |
| RECEIVING    |               |          |         |      |        |
| INSPECTION   |               |          |         |      |        |
| UPON RECEIPT |               |          |         |      |        |
|              |               |          |         |      |        |
| OF THE TANK  |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
| INTEROFFICE  |               |          |         |      |        |
| MEMORANDUM   |               |          |         |      |        |
| 3723-86-041) |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| K. PROVIDE   |               |          |         |      |        |
| CAUSE AND    |               |          |         |      |        |
| CORRECTIVE   |               |          |         |      |        |
| ACTION FOR   |               |          |         |      |        |
| VIOLATING    |               |          |         |      |        |
| SRI          |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
|              |               |          |         |      |        |
| (MAXIMUM 10  |               |          |         |      |        |
| {TO THE 2ND} |               |          |         |      |        |
| INCH REPAIR  |               |          |         |      |        |
| AREA FOR     |               |          |         |      |        |
| EVERY 100    |               |          |         |      |        |
| {TO THE 2ND} |               |          |         |      |        |
|              |               |          |         |      |        |
| INCH SURFACE |               |          |         |      |        |
| AREA)        |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| THE          |               |          |         |      |        |
| EMPLOYEES    |               |          |         |      |        |
| INVOLVED IN  |               |          |         |      |        |
| DOCUMENTING  |               |          |         |      |        |
| AND/OR       |               |          |         |      |        |
| WORKING THE  |               |          |         |      |        |
| DR DISPOSI-  |               |          |         |      |        |
|              |               |          |         |      |        |
| TIONS FAILED |               |          |         |      |        |
| TO RECOGNIZE |               |          |         |      |        |
| THAT SRI     |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
| HAD BEEN     |               |          |         |      |        |
| VIOLATED. TO |               |          |         |      |        |
|              |               |          |         |      |        |
| PREVENT THIS |               |          |         |      |        |
| PROBLEM FROM |               |          |         |      |        |
| RECURRING,   |               |          |         |      |        |
| THE QUALITY  |               |          |         |      |        |
| CONTROL      |               |          |         |      |        |
| INSPECTOR    |               |          |         |      |        |
|              |               |          |         |      |        |
| IS NOW       |               |          |         |      |        |
| REQUIRED TO  |               |          |         |      |        |
| VERIFY ON    |               |          |         |      |        |
| THE DR THAT  |               |          |         |      |        |
| THE SRI      |               |          |         |      |        |
| REPAIR       |               |          |         |      |        |
| CRITERIA IS  |               |          |         |      |        |
| NOT          |               |          |         |      |        |
|              |               |          |         |      |        |
| VIOLATED     |               |          |         |      |        |
| PRIOR TO     |               |          |         |      |        |
| REWORK BEING |               |          |         |      |        |
| PERFORMED.   |               |          |         |      |        |
| IN ADDITION  |               |          |         |      |        |
| TO THIS      |               |          |         |      |        |
|              |               |          |         |      |        |
| V            |               |          |         |      |        |
| ERIFICATION, |               |          |         |      |        |
| THE QUALITY  |               |          |         |      |        |
| CONTROL      |               |          |         |      |        |
| SUPERVISOR   |               |          |         |      |        |
| IS REQUIRED  |               |          |         |      |        |
| TO REVIEW    |               |          |         |      |        |
| THE          |               |          |         |      |        |
|              |               |          |         |      |        |
| AREA OF THE  |               |          |         |      |        |
| DISCREPANCY  |               |          |         |      |        |
| AND ASSURE   |               |          |         |      |        |
| THAT NO      |               |          |         |      |        |
| ADDITIONAL   |               |          |         |      |        |
| VIOLATIONS   |               |          |         |      |        |
| WILL         |               |          |         |      |        |
|              |               |          |         |      |        |
| OCCUR PRIOR  |               |          |         |      |        |
| TO APPROVING |               |          |         |      |        |
| THE REWORK   |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
| INTEROFFICE  |               |          |         |      |        |
| MEMORANDUM   |               |          |         |      |        |
|              |               |          |         |      |        |
| 3723-87-041) |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| L.           |               |          |         |      |        |
| ESTABLISHED  |               |          |         |      |        |
| A PROCEDURE  |               |          |         |      |        |
| FOR REPAIR   |               |          |         |      |        |
| OF IRREGULAR |               |          |         |      |        |
| SHAPED       |               |          |         |      |        |
| CLOSEOUTS    |               |          |         |      |        |
|              |               |          |         |      |        |
| IN THE       |               |          |         |      |        |
| OVERHEAD AND |               |          |         |      |        |
| SIDEWALL     |               |          |         |      |        |
| POSITIONS    |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| REC          |               |          |         |      |        |
| OMMENDATIONS |               |          |         |      |        |
| WERE MADE BY |               |          |         |      |        |
| AMT          |               |          |         |      |        |
| (ADVANCED    |               |          |         |      |        |
| M            |               |          |         |      |        |
| ANUFACTURING |               |          |         |      |        |
| TECHNOLOGY)  |               |          |         |      |        |
|              |               |          |         |      |        |
| AS TO        |               |          |         |      |        |
| CRITERIA TO  |               |          |         |      |        |
| USE WHEN     |               |          |         |      |        |
| REPAIRING    |               |          |         |      |        |
| IRREGULAR    |               |          |         |      |        |
| SHAPED       |               |          |         |      |        |
| CLOSEOUTS.   |               |          |         |      |        |
| AMT          |               |          |         |      |        |
|              |               |          |         |      |        |
| FOUND THAT   |               |          |         |      |        |
| THE REPAIR   |               |          |         |      |        |
| OF IRREGULAR |               |          |         |      |        |
| SHAPED HOLES |               |          |         |      |        |
| COULD BE     |               |          |         |      |        |
| ACCOMPLISHED |               |          |         |      |        |
|              |               |          |         |      |        |
| USING        |               |          |         |      |        |
| EXISTING     |               |          |         |      |        |
| PROCEDURES   |               |          |         |      |        |
| AND TOOLS,   |               |          |         |      |        |
| AS LONG AS   |               |          |         |      |        |
| THE          |               |          |         |      |        |
| DIMENSIONS   |               |          |         |      |        |
| DID          |               |          |         |      |        |
|              |               |          |         |      |        |
| NOT EXCEED A |               |          |         |      |        |
| 1.5\" CORE   |               |          |         |      |        |
| AND 3.5\"    |               |          |         |      |        |
| SPOT FACE    |               |          |         |      |        |
| DIMENSION.   |               |          |         |      |        |
| HOWEVER, IF  |               |          |         |      |        |
|              |               |          |         |      |        |
| REPAIR AREAS |               |          |         |      |        |
| EXCEED THESE |               |          |         |      |        |
| DIMENSIONS,  |               |          |         |      |        |
| AMT HAS      |               |          |         |      |        |
| PROPOSED     |               |          |         |      |        |
| THAT         |               |          |         |      |        |
| MODIFIED     |               |          |         |      |        |
|              |               |          |         |      |        |
| TOOLS BE     |               |          |         |      |        |
| MADE THAT    |               |          |         |      |        |
| MATCH THE    |               |          |         |      |        |
| SIZE OF THE  |               |          |         |      |        |
| AREA TO BE   |               |          |         |      |        |
| REPAIRED.    |               |          |         |      |        |
| THESE        |               |          |         |      |        |
|              |               |          |         |      |        |
| MODIFIED     |               |          |         |      |        |
| TOOLS WOULD  |               |          |         |      |        |
| THEN BE      |               |          |         |      |        |
| TESTED IN    |               |          |         |      |        |
| THE AMT LAB  |               |          |         |      |        |
| TO VERIFY    |               |          |         |      |        |
| THAT         |               |          |         |      |        |
|              |               |          |         |      |        |
| THEY WORK    |               |          |         |      |        |
| PRIOR TO USE |               |          |         |      |        |
| ON FLIGHT    |               |          |         |      |        |
| HARDWARE     |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
| INTEROFFICE  |               |          |         |      |        |
|              |               |          |         |      |        |
| MEMORANDUM   |               |          |         |      |        |
| 369          |               |          |         |      |        |
| 1-86-RW-094) |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM V       |               |          |         |      |        |
| PROVIDED FOR |               |          |         |      |        |
| FURTHER      |               |          |         |      |        |
| EVALUATION   |               |          |         |      |        |
| OF THE       |               |          |         |      |        |
| REPAIR       |               |          |         |      |        |
| PROCEDURES   |               |          |         |      |        |
| USED         |               |          |         |      |        |
|              |               |          |         |      |        |
| FOR          |               |          |         |      |        |
| IRREGULAR    |               |          |         |      |        |
| SHAPED       |               |          |         |      |        |
| CLOSEOUTS.   |               |          |         |      |        |
| CURRENT      |               |          |         |      |        |
| PROCEDURES   |               |          |         |      |        |
| WERE FOUND   |               |          |         |      |        |
| TO BE        |               |          |         |      |        |
|              |               |          |         |      |        |
| SATISFACTORY |               |          |         |      |        |
| FOR THE      |               |          |         |      |        |
| REPAIR OF    |               |          |         |      |        |
| THE DEFECTS  |               |          |         |      |        |
| IN THE       |               |          |         |      |        |
| SIDEWALL     |               |          |         |      |        |
| POSITONS     |               |          |         |      |        |
|              |               |          |         |      |        |
| OVERHEAD     |               |          |         |      |        |
| REPAIRS ARE  |               |          |         |      |        |
| NOW          |               |          |         |      |        |
| DISALLOWED,  |               |          |         |      |        |
| EXCEPT BY    |               |          |         |      |        |
| MARS         |               |          |         |      |        |
| DISPOSITION  |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| M. DEFINE    |               |          |         |      |        |
| FUNCTIONAL   |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
| FOR THE PLUG |               |          |         |      |        |
| PULL         |               |          |         |      |        |
| CLOSEOUT     |               |          |         |      |        |
| TOOL         |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| THE          |               |          |         |      |        |
| FUNCTIONAL   |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
| AND          |               |          |         |      |        |
| DIMENSIONS   |               |          |         |      |        |
| WERE DEFINED |               |          |         |      |        |
| AND          |               |          |         |      |        |
| FORWARDED    |               |          |         |      |        |
|              |               |          |         |      |        |
| TO TOOL      |               |          |         |      |        |
| DESIGN FOR   |               |          |         |      |        |
| AC           |               |          |         |      |        |
| COMPLISHMENT |               |          |         |      |        |
| OF ITEM N    |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| N. PREPARE A |               |          |         |      |        |
| TOOL DRAWING |               |          |         |      |        |
| FOR THE      |               |          |         |      |        |
| CLOSEOUT     |               |          |         |      |        |
| TOOL BASED   |               |          |         |      |        |
| ON THE       |               |          |         |      |        |
| RESULTS      |               |          |         |      |        |
|              |               |          |         |      |        |
| OF ITEM M    |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| THE TOOL     |               |          |         |      |        |
| DRAWING HAS  |               |          |         |      |        |
| BEEN         |               |          |         |      |        |
| COMPLETED    |               |          |         |      |        |
| AND          |               |          |         |      |        |
| REALEASED    |               |          |         |      |        |
| FOR THE PLUG |               |          |         |      |        |
| PULL         |               |          |         |      |        |
|              |               |          |         |      |        |
| REPAIR TOOL  |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
| TOOL DRAWING |               |          |         |      |        |
| TL-0931-037) |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| O. DEFINE    |               |          |         |      |        |
| INSPECTION   |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
| FOR THE TOOL |               |          |         |      |        |
| GENERATED BY |               |          |         |      |        |
| ITEM N       |               |          |         |      |        |
|              |               |          |         |      |        |
| (            |               |          |         |      |        |
| TL-0931-037) |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATMENT     |               |          |         |      |        |
|              |               |          |         |      |        |
| A RECEIVING  |               |          |         |      |        |
| ACCEPTANCE   |               |          |         |      |        |
| PLAN HAS     |               |          |         |      |        |
| BEEN         |               |          |         |      |        |
| COMPLETED    |               |          |         |      |        |
| AND RELEASED |               |          |         |      |        |
| FOR THE      |               |          |         |      |        |
|              |               |          |         |      |        |
| TL-0931-037  |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| REPAIR TOOL  |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
| RAP:         |               |          |         |      |        |
| TL-0931-037) |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| P. ATTEND    |               |          |         |      |        |
| THE          |               |          |         |      |        |
| C            |               |          |         |      |        |
| ERTIFICATION |               |          |         |      |        |
| CLASSES FOR  |               |          |         |      |        |
| PI-1518 TO   |               |          |         |      |        |
| DETERMINE    |               |          |         |      |        |
| THE          |               |          |         |      |        |
|              |               |          |         |      |        |
| ADEQUACY OF  |               |          |         |      |        |
| TRAINING AND |               |          |         |      |        |
| IF           |               |          |         |      |        |
| C            |               |          |         |      |        |
| ERTIFICATION |               |          |         |      |        |
| SHOULD BE    |               |          |         |      |        |
| REQUIRED FOR |               |          |         |      |        |
| TOOL         |               |          |         |      |        |
|              |               |          |         |      |        |
| USAGE        |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| THE          |               |          |         |      |        |
| C            |               |          |         |      |        |
| ERTIFICATION |               |          |         |      |        |
| REQUIRED FOR |               |          |         |      |        |
| THE          |               |          |         |      |        |
| APPLICATION  |               |          |         |      |        |
| OF PDL IS    |               |          |         |      |        |
| ACQUIRED     |               |          |         |      |        |
|              |               |          |         |      |        |
| THROUGH      |               |          |         |      |        |
| ON-THE-JOB   |               |          |         |      |        |
| TRAINING AND |               |          |         |      |        |
| WRITTEN      |               |          |         |      |        |
| EXAMINATION. |               |          |         |      |        |
| THERE IS NO  |               |          |         |      |        |
|              |               |          |         |      |        |
| SPECIFIC     |               |          |         |      |        |
| CLASS TAUGHT |               |          |         |      |        |
| FOR THIS     |               |          |         |      |        |
| C            |               |          |         |      |        |
| ERTIFICATION |               |          |         |      |        |
|              |               |          |         |      |        |
| HOWEVER, DUE |               |          |         |      |        |
| TO THE       |               |          |         |      |        |
| CONCERN OF   |               |          |         |      |        |
| CLOSEOUTS    |               |          |         |      |        |
| WITHIN THE   |               |          |         |      |        |
| HIGH HEAT    |               |          |         |      |        |
| AREAS        |               |          |         |      |        |
|              |               |          |         |      |        |
| OF THE ET,   |               |          |         |      |        |
| THE TRAINING |               |          |         |      |        |
| DEPARTMENT   |               |          |         |      |        |
| HAS          |               |          |         |      |        |
| DEVELOPED    |               |          |         |      |        |
| COURSE X-592 |               |          |         |      |        |
| (TPS         |               |          |         |      |        |
|              |               |          |         |      |        |
| PDL          |               |          |         |      |        |
| APPL         |               |          |         |      |        |
| ICATION/HIGH |               |          |         |      |        |
| HEAT AREAS)  |               |          |         |      |        |
| TO CERTIFY   |               |          |         |      |        |
| EMPLOYEES    |               |          |         |      |        |
| FOR PDL PLUG |               |          |         |      |        |
|              |               |          |         |      |        |
| PULL AND SLA |               |          |         |      |        |
| VENT         |               |          |         |      |        |
| CLOSEOUTS    |               |          |         |      |        |
| WITHIN THESE |               |          |         |      |        |
| AREAS. THIS  |               |          |         |      |        |
| C            |               |          |         |      |        |
| ERTIFICATION |               |          |         |      |        |
|              |               |          |         |      |        |
| (CRD D.1.C), |               |          |         |      |        |
| EFFECTIVE    |               |          |         |      |        |
| FOR LWT-44,  |               |          |         |      |        |
| RESULTED     |               |          |         |      |        |
| FROM         |               |          |         |      |        |
| DIRECTION BY |               |          |         |      |        |
| OD           |               |          |         |      |        |
|              |               |          |         |      |        |
| 53231,       |               |          |         |      |        |
| PARAGRAPH    |               |          |         |      |        |
| 5.5          |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| Q. REVIEW    |               |          |         |      |        |
| PI-1518 FOR  |               |          |         |      |        |
| ADEQUACY OF  |               |          |         |      |        |
| INSTRUCTIONS |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| PI 1518 WAS  |               |          |         |      |        |
| REVIEWED AND |               |          |         |      |        |
| REC          |               |          |         |      |        |
| OMMENDATIONS |               |          |         |      |        |
| WERE MADE    |               |          |         |      |        |
| FOR          |               |          |         |      |        |
| IMPROVING,   |               |          |         |      |        |
|              |               |          |         |      |        |
| BY BETTER    |               |          |         |      |        |
| DETAILING,   |               |          |         |      |        |
| THE          |               |          |         |      |        |
| INSTRUCTIONS |               |          |         |      |        |
| FOR          |               |          |         |      |        |
| INSTALLING   |               |          |         |      |        |
| THE PLUG     |               |          |         |      |        |
| PULL         |               |          |         |      |        |
|              |               |          |         |      |        |
| HOLE AND SLA |               |          |         |      |        |
| VENT REPAIR  |               |          |         |      |        |
| TOOLS DURING |               |          |         |      |        |
| OVERHEAD AND |               |          |         |      |        |
| SIDEWALL     |               |          |         |      |        |
| RESTORA-     |               |          |         |      |        |
|              |               |          |         |      |        |
| TION. THE    |               |          |         |      |        |
| IM           |               |          |         |      |        |
| PLEMENTATION |               |          |         |      |        |
| OF THESE     |               |          |         |      |        |
| REC          |               |          |         |      |        |
| OMMENDATIONS |               |          |         |      |        |
| WAS          |               |          |         |      |        |
| ACCOMPLISHED |               |          |         |      |        |
|              |               |          |         |      |        |
| BY ITEM U    |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| R.           |               |          |         |      |        |
| ENGINEERING  |               |          |         |      |        |
| TO PROVIDE   |               |          |         |      |        |
| TEST DATA    |               |          |         |      |        |
| AND          |               |          |         |      |        |
| RATIONALE    |               |          |         |      |        |
| FOR          |               |          |         |      |        |
| ACCEPTANCE   |               |          |         |      |        |
| OF           |               |          |         |      |        |
|              |               |          |         |      |        |
| PREVIOUS     |               |          |         |      |        |
| AS-BUILT     |               |          |         |      |        |
| HARDWARE     |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| THERMAL AND  |               |          |         |      |        |
| STRESS       |               |          |         |      |        |
| ENGINEERING  |               |          |         |      |        |
| HAVE         |               |          |         |      |        |
| EVALUATED    |               |          |         |      |        |
| AND ACCEPTED |               |          |         |      |        |
| PREVIOUS     |               |          |         |      |        |
|              |               |          |         |      |        |
| AS-BUILT     |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| REPAIRS.     |               |          |         |      |        |
| THEIR        |               |          |         |      |        |
| ACCEPTANCE   |               |          |         |      |        |
| IS BASED ON  |               |          |         |      |        |
| THE PLUG     |               |          |         |      |        |
|              |               |          |         |      |        |
| PULL REPAIRS |               |          |         |      |        |
| MEETING THE  |               |          |         |      |        |
| ACCEPTANCE   |               |          |         |      |        |
| CRITERIA AS  |               |          |         |      |        |
| DEFINED BY   |               |          |         |      |        |
| MMC TEST     |               |          |         |      |        |
|              |               |          |         |      |        |
| PLAN         |               |          |         |      |        |
| 369          |               |          |         |      |        |
| 3-84-CG-324, |               |          |         |      |        |
| \"IM         |               |          |         |      |        |
| PLEMENTATION |               |          |         |      |        |
| PLAN LH2 AFT |               |          |         |      |        |
| DOME PLUG    |               |          |         |      |        |
| PULL         |               |          |         |      |        |
|              |               |          |         |      |        |
| REPAIR       |               |          |         |      |        |
| VALIDATION   |               |          |         |      |        |
| TEST\",      |               |          |         |      |        |
| DATED JULY,  |               |          |         |      |        |
| 1984. THIS   |               |          |         |      |        |
| CRITERIA     |               |          |         |      |        |
| SPECIFIED    |               |          |         |      |        |
|              |               |          |         |      |        |
| THAT WHEN    |               |          |         |      |        |
| QUARTERED,   |               |          |         |      |        |
| \"NO MORE    |               |          |         |      |        |
| THAN SEVEN   |               |          |         |      |        |
| VOIDS ARE    |               |          |         |      |        |
| ALLOWED PER  |               |          |         |      |        |
|              |               |          |         |      |        |
| REPAIR AREA  |               |          |         |      |        |
| WITH NO MORE |               |          |         |      |        |
| THAN ONE     |               |          |         |      |        |
| VOID GREATER |               |          |         |      |        |
| THAN 0.3\"   |               |          |         |      |        |
| AND NONE     |               |          |         |      |        |
|              |               |          |         |      |        |
| OVER 0.5\".  |               |          |         |      |        |
| REPAIRS      |               |          |         |      |        |
| MEETING THIS |               |          |         |      |        |
| CRITERIA     |               |          |         |      |        |
| WOULD HAVE A |               |          |         |      |        |
| WORST CASE   |               |          |         |      |        |
|              |               |          |         |      |        |
| POTENTIAL OF |               |          |         |      |        |
| A 0.5\"      |               |          |         |      |        |
| DIVOT        |               |          |         |      |        |
| CREATION.    |               |          |         |      |        |
| THIS HAS     |               |          |         |      |        |
| BEEN         |               |          |         |      |        |
| DETERMINED   |               |          |         |      |        |
| TO BE        |               |          |         |      |        |
|              |               |          |         |      |        |
| ACCEPTABLE   |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
| INTEROFFICE  |               |          |         |      |        |
| MEMORANDUM   |               |          |         |      |        |
| 35           |               |          |         |      |        |
| 22/T-86-015) |               |          |         |      |        |
|              |               |          |         |      |        |
| NOTE:        |               |          |         |      |        |
| FURTHER      |               |          |         |      |        |
| ASSESSMENT   |               |          |         |      |        |
| BY           |               |          |         |      |        |
| ENGINEERING  |               |          |         |      |        |
| DETERMINED   |               |          |         |      |        |
| THAT VOID    |               |          |         |      |        |
|              |               |          |         |      |        |
| ACCEPTANCE   |               |          |         |      |        |
| CRITERIA     |               |          |         |      |        |
| COULD BE     |               |          |         |      |        |
| FURTHER      |               |          |         |      |        |
| REVISED TO   |               |          |         |      |        |
| PROVIDE A    |               |          |         |      |        |
| MORE LENIENT |               |          |         |      |        |
|              |               |          |         |      |        |
| ACCEPTANCE   |               |          |         |      |        |
| OF INTERNAL  |               |          |         |      |        |
| VOIDS. THIS  |               |          |         |      |        |
| ACCEPTANCE   |               |          |         |      |        |
| CRITERIA WAS |               |          |         |      |        |
| USED IN THE  |               |          |         |      |        |
|              |               |          |         |      |        |
| PI 1518-5    |               |          |         |      |        |
| VALIDATION   |               |          |         |      |        |
| ACCOMPLISHED |               |          |         |      |        |
| IN MARCH,    |               |          |         |      |        |
| 1987. DURING |               |          |         |      |        |
| THIS         |               |          |         |      |        |
|              |               |          |         |      |        |
| VALIDATION,  |               |          |         |      |        |
| 59           |               |          |         |      |        |
| SUCCESSIVE   |               |          |         |      |        |
| PDL REPAIRS  |               |          |         |      |        |
| TO THE       |               |          |         |      |        |
| OVERHEAD AND |               |          |         |      |        |
| SIDEWALL     |               |          |         |      |        |
|              |               |          |         |      |        |
| POSITIONS    |               |          |         |      |        |
| MET THIS     |               |          |         |      |        |
| CRITERIA AS  |               |          |         |      |        |
| DEFINED IN   |               |          |         |      |        |
| PI 1518-5    |               |          |         |      |        |
| AND QETP-003 |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| S. PROVIDE A |               |          |         |      |        |
| LISTING OF   |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| REPAIRS IN   |               |          |         |      |        |
| HIGH HEAT    |               |          |         |      |        |
| AND DEBRIS   |               |          |         |      |        |
|              |               |          |         |      |        |
| CRITICAL     |               |          |         |      |        |
| ZONES        |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| A LISTING OF |               |          |         |      |        |
| ALL PLANNED  |               |          |         |      |        |
| AND          |               |          |         |      |        |
| UNPLANNED    |               |          |         |      |        |
| PLUG PULLS   |               |          |         |      |        |
| FOR LWTS 16  |               |          |         |      |        |
| THROUGH      |               |          |         |      |        |
|              |               |          |         |      |        |
| 30 PERFORMED |               |          |         |      |        |
| ON THE LOX   |               |          |         |      |        |
| OGIVE        |               |          |         |      |        |
| STATIONS     |               |          |         |      |        |
| 371, 471,    |               |          |         |      |        |
| LH2 AFT      |               |          |         |      |        |
| DOME, I/T    |               |          |         |      |        |
|              |               |          |         |      |        |
| SURFACES AND |               |          |         |      |        |
| ANY          |               |          |         |      |        |
| SUBSEQUENT   |               |          |         |      |        |
| VOID REPAIR  |               |          |         |      |        |
| DATA WAS     |               |          |         |      |        |
| PROVIDED TO  |               |          |         |      |        |
| ENGINEER-    |               |          |         |      |        |
|              |               |          |         |      |        |
| ING          |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
| INTEROFFICE  |               |          |         |      |        |
| MEMORANDUM   |               |          |         |      |        |
| 3741-86-021) |               |          |         |      |        |
|              |               |          |         |      |        |
| T. IDENTIFY  |               |          |         |      |        |
| AREAS WHERE  |               |          |         |      |        |
| THE VENDOR   |               |          |         |      |        |
| TOOL WAS OR  |               |          |         |      |        |
| COULD HAVE   |               |          |         |      |        |
| BEEN USED    |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| A LOG SEARCH |               |          |         |      |        |
| FOR LWTS 15  |               |          |         |      |        |
| THROUGH 30   |               |          |         |      |        |
| WAS          |               |          |         |      |        |
| PERFORMED IN |               |          |         |      |        |
| AN ATTEMPT   |               |          |         |      |        |
| TO           |               |          |         |      |        |
|              |               |          |         |      |        |
| IDENTIFY ALL |               |          |         |      |        |
| AREAS WHERE  |               |          |         |      |        |
| THE PLUG     |               |          |         |      |        |
| PULL REPAIR  |               |          |         |      |        |
| TOOL         |               |          |         |      |        |
| (            |               |          |         |      |        |
| TL-0931-037) |               |          |         |      |        |
| WAS          |               |          |         |      |        |
|              |               |          |         |      |        |
| OR COULD     |               |          |         |      |        |
| HAVE BEEN    |               |          |         |      |        |
| USED. THE    |               |          |         |      |        |
| D            |               |          |         |      |        |
| OCUMENTATION |               |          |         |      |        |
| REVIEWED DID |               |          |         |      |        |
| NOT ALWAYS   |               |          |         |      |        |
|              |               |          |         |      |        |
| PROVIDE      |               |          |         |      |        |
| VERIFICATION |               |          |         |      |        |
| THAT THE     |               |          |         |      |        |
| TOOL WAS     |               |          |         |      |        |
| USED,        |               |          |         |      |        |
| HOWEVE,R IN  |               |          |         |      |        |
| ALL PLUG     |               |          |         |      |        |
|              |               |          |         |      |        |
| PULL         |               |          |         |      |        |
| CLOSEOUTS    |               |          |         |      |        |
| WHERE THE    |               |          |         |      |        |
| TOOL SHOULD  |               |          |         |      |        |
| OR COULD     |               |          |         |      |        |
| HAVE BEEN    |               |          |         |      |        |
| USED, NO     |               |          |         |      |        |
|              |               |          |         |      |        |
| SUBSURFACE   |               |          |         |      |        |
| VOIDS WERE   |               |          |         |      |        |
| NOTED. ONLY  |               |          |         |      |        |
| SURFACE      |               |          |         |      |        |
| VOIDS. AND   |               |          |         |      |        |
| THESE WERE   |               |          |         |      |        |
|              |               |          |         |      |        |
| REPAIRED PER |               |          |         |      |        |
| SRI AND      |               |          |         |      |        |
| PI-1518      |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
| INTEROFFICE  |               |          |         |      |        |
| MEMORANDUM   |               |          |         |      |        |
|              |               |          |         |      |        |
| 3741-86-016) |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| U. IMPLEMENT |               |          |         |      |        |
| THE PI-1518  |               |          |         |      |        |
| IMPROVEMENT  |               |          |         |      |        |
| REC          |               |          |         |      |        |
| OMMENDATIONS |               |          |         |      |        |
| FROM ITEM Q  |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| IMPROVEMENT  |               |          |         |      |        |
| REC          |               |          |         |      |        |
| OMMENDATIONS |               |          |         |      |        |
| PERTAINING   |               |          |         |      |        |
| TO THE USE   |               |          |         |      |        |
| OF THE PLUG  |               |          |         |      |        |
| PULL         |               |          |         |      |        |
|              |               |          |         |      |        |
| HOLE REPAIR  |               |          |         |      |        |
| TOOL WERE    |               |          |         |      |        |
| INCLUDED IN  |               |          |         |      |        |
| PI-1518 AS   |               |          |         |      |        |
| OF AUGUST,   |               |          |         |      |        |
| 1986         |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
|              |               |          |         |      |        |
| REVISION     |               |          |         |      |        |
| LEVEL        |               |          |         |      |        |
| 1.4/A.2.1/   |               |          |         |      |        |
| B.4/A.1.1/C. |               |          |         |      |        |
| O.1/A.3/A.2) |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| V.           |               |          |         |      |        |
| RE-EVALUATE, |               |          |         |      |        |
| REVISE AS    |               |          |         |      |        |
| NECESSARY,   |               |          |         |      |        |
| AND          |               |          |         |      |        |
| IMPLEMENT    |               |          |         |      |        |
| PROCEDURES   |               |          |         |      |        |
| FOR THE      |               |          |         |      |        |
|              |               |          |         |      |        |
| REPAIR OF    |               |          |         |      |        |
| REGULAR AND  |               |          |         |      |        |
| IRREGULAR    |               |          |         |      |        |
| SHAPED       |               |          |         |      |        |
| CLOSEOUTS IN |               |          |         |      |        |
| THE OVERHEAD |               |          |         |      |        |
| AND          |               |          |         |      |        |
|              |               |          |         |      |        |
| SIDEWALL     |               |          |         |      |        |
| POSITIONS    |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| NO REVISIONS |               |          |         |      |        |
| TO OUR       |               |          |         |      |        |
| CURRENT      |               |          |         |      |        |
| PROCEDURES   |               |          |         |      |        |
| WERE FOUND   |               |          |         |      |        |
| TO BE        |               |          |         |      |        |
| NECESSARY    |               |          |         |      |        |
|              |               |          |         |      |        |
| FOR THE      |               |          |         |      |        |
| REPAIR OF    |               |          |         |      |        |
| REGULAR      |               |          |         |      |        |
| SHAPED       |               |          |         |      |        |
| CLOSEOUTS.   |               |          |         |      |        |
| (REGULAR     |               |          |         |      |        |
| SHAPED       |               |          |         |      |        |
| CLOSEOUTS    |               |          |         |      |        |
|              |               |          |         |      |        |
| ARE DEFINED  |               |          |         |      |        |
| AS THOSE     |               |          |         |      |        |
| CLOSEOUTS    |               |          |         |      |        |
| SPOT FACED   |               |          |         |      |        |
| TO A         |               |          |         |      |        |
| STANDARD     |               |          |         |      |        |
| SIZE AND RE- |               |          |         |      |        |
|              |               |          |         |      |        |
| PAIRED USING |               |          |         |      |        |
| AN APPROVED  |               |          |         |      |        |
| CLOSEOUT     |               |          |         |      |        |
| TOOL). THE   |               |          |         |      |        |
| CLOSEOUT     |               |          |         |      |        |
| TECHNIQUE    |               |          |         |      |        |
| WAS          |               |          |         |      |        |
|              |               |          |         |      |        |
| REVALIDATED  |               |          |         |      |        |
| PER QETP-003 |               |          |         |      |        |
| AND FOUND TO |               |          |         |      |        |
| BE           |               |          |         |      |        |
| S            |               |          |         |      |        |
| ATISFACTORY. |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
|              |               |          |         |      |        |
| INTEROFFICE  |               |          |         |      |        |
| MEMORANDUM   |               |          |         |      |        |
| 3743-87-037) |               |          |         |      |        |
|              |               |          |         |      |        |
| IN REGARDS   |               |          |         |      |        |
| TO IRREGULAR |               |          |         |      |        |
| SHAPED       |               |          |         |      |        |
| CLOSEOUTS,   |               |          |         |      |        |
| SEVERAL      |               |          |         |      |        |
| CHANGES HAVE |               |          |         |      |        |
| BEEN         |               |          |         |      |        |
|              |               |          |         |      |        |
| MADE. PI     |               |          |         |      |        |
| 1518 HAS     |               |          |         |      |        |
| BEEN REVISED |               |          |         |      |        |
| TO INCLUDE   |               |          |         |      |        |
| MORE         |               |          |         |      |        |
| DETAILED     |               |          |         |      |        |
| INSTRUCTIONS |               |          |         |      |        |
|              |               |          |         |      |        |
| FOR THE      |               |          |         |      |        |
| APPLICATION  |               |          |         |      |        |
| OF PDL TO    |               |          |         |      |        |
| DEFECT       |               |          |         |      |        |
| AREAS.       |               |          |         |      |        |
| SRI\'S       |               |          |         |      |        |
| T-001, T-009 |               |          |         |      |        |
| AND          |               |          |         |      |        |
|              |               |          |         |      |        |
| T-010 HAVE   |               |          |         |      |        |
| ALSO BEEN    |               |          |         |      |        |
| REVISED TO   |               |          |         |      |        |
| DISALLOW THE |               |          |         |      |        |
| REPAIR OF    |               |          |         |      |        |
| OVERHEAD     |               |          |         |      |        |
|              |               |          |         |      |        |
| DEFECTS.     |               |          |         |      |        |
| OVERHEAD     |               |          |         |      |        |
| REPAIRS ARE  |               |          |         |      |        |
| TO BE DONE   |               |          |         |      |        |
| ONLY WITH    |               |          |         |      |        |
| ENGINEERINGS |               |          |         |      |        |
|              |               |          |         |      |        |
| DIRECTION    |               |          |         |      |        |
| PER MARS     |               |          |         |      |        |
| DISPOSITION. |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
| PI 1518      |               |          |         |      |        |
| REVISION     |               |          |         |      |        |
| 1.5/         |               |          |         |      |        |
|              |               |          |         |      |        |
| A.3/B.6/A.2/ |               |          |         |      |        |
| C.1/A.4/A.4, |               |          |         |      |        |
| SRI\'S T-001 |               |          |         |      |        |
| REVISIONS,   |               |          |         |      |        |
| T-009        |               |          |         |      |        |
| REVISION 1   |               |          |         |      |        |
|              |               |          |         |      |        |
| AND T-010    |               |          |         |      |        |
| REVISION     |               |          |         |      |        |
| NEW)         |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| W.           |               |          |         |      |        |
| ENGINEERING  |               |          |         |      |        |
| IS TO        |               |          |         |      |        |
| PROVIDE      |               |          |         |      |        |
| RATIONALE    |               |          |         |      |        |
| FOR THE      |               |          |         |      |        |
| ACCEPTANCE   |               |          |         |      |        |
| OF ALL       |               |          |         |      |        |
|              |               |          |         |      |        |
| AS-BUILT     |               |          |         |      |        |
| IRREGULAR    |               |          |         |      |        |
| SHAPED PDL   |               |          |         |      |        |
| REPAIRS AS   |               |          |         |      |        |
| PERFORMED BY |               |          |         |      |        |
| SRI OR MARS  |               |          |         |      |        |
|              |               |          |         |      |        |
| INSTRUCTION. |               |          |         |      |        |
| CONCERNS     |               |          |         |      |        |
| THAT NEED TO |               |          |         |      |        |
| BE ADDRESSED |               |          |         |      |        |
| SHOULD       |               |          |         |      |        |
| INCLUDE,     |               |          |         |      |        |
|              |               |          |         |      |        |
| BUT ARE NOT  |               |          |         |      |        |
| NECESSARILY  |               |          |         |      |        |
| LIMITED TO,  |               |          |         |      |        |
| REPAIR AREAS |               |          |         |      |        |
| FALLING      |               |          |         |      |        |
| WITHIN       |               |          |         |      |        |
|              |               |          |         |      |        |
| AND OUTSIDE  |               |          |         |      |        |
| SRI AREA     |               |          |         |      |        |
| R            |               |          |         |      |        |
| EQUIREMENTS, |               |          |         |      |        |
| C            |               |          |         |      |        |
| ONFIGURATION |               |          |         |      |        |
| OF THE       |               |          |         |      |        |
| REPAIRS,     |               |          |         |      |        |
|              |               |          |         |      |        |
| LOCATION OF  |               |          |         |      |        |
| THE REPAIRS  |               |          |         |      |        |
| (OVERHEAD,   |               |          |         |      |        |
| SIDEWALL,    |               |          |         |      |        |
| AND          |               |          |         |      |        |
| HORIZONTAL)  |               |          |         |      |        |
| AND          |               |          |         |      |        |
|              |               |          |         |      |        |
| THE          |               |          |         |      |        |
| METH         |               |          |         |      |        |
| OD/TECHNIQUE |               |          |         |      |        |
| USED FOR THE |               |          |         |      |        |
| REPAIRS      |               |          |         |      |        |
|              |               |          |         |      |        |
| AMT WILL     |               |          |         |      |        |
| PROVIDE      |               |          |         |      |        |
| ENGINEERING  |               |          |         |      |        |
| WITH PDL     |               |          |         |      |        |
| REPAIR DATA  |               |          |         |      |        |
| BY WAY OF    |               |          |         |      |        |
|              |               |          |         |      |        |
| VERIFICATION |               |          |         |      |        |
| TEST PLAN    |               |          |         |      |        |
| 369          |               |          |         |      |        |
| 1-87-DAC-001 |               |          |         |      |        |
|              |               |          |         |      |        |
| RELIABILITY  |               |          |         |      |        |
| ASSURANCE    |               |          |         |      |        |
| WILL PROVIDE |               |          |         |      |        |
| ENGINEERING  |               |          |         |      |        |
| WITH A       |               |          |         |      |        |
| LISTING OF   |               |          |         |      |        |
| ALL          |               |          |         |      |        |
|              |               |          |         |      |        |
| PDL REPAIRS, |               |          |         |      |        |
| PERFORMED ON |               |          |         |      |        |
| ALL UNFLOWN  |               |          |         |      |        |
| ETS, THAT    |               |          |         |      |        |
| EXCEED THE   |               |          |         |      |        |
| SRI          |               |          |         |      |        |
|              |               |          |         |      |        |
| REQUIREMENT  |               |          |         |      |        |
| OF TEN       |               |          |         |      |        |
| SQUARE INCH  |               |          |         |      |        |
| MAXIMUM      |               |          |         |      |        |
| REPAIR AREA  |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT    |               |          |         |      |        |
|              |               |          |         |      |        |
| ENGINEERING  |               |          |         |      |        |
| HAS          |               |          |         |      |        |
| EVALUATED    |               |          |         |      |        |
| DATA         |               |          |         |      |        |
| PROVIDED BY  |               |          |         |      |        |
| AMT          |               |          |         |      |        |
| CONCERNING   |               |          |         |      |        |
| HORIZONTAL,  |               |          |         |      |        |
|              |               |          |         |      |        |
| VERITICAL,   |               |          |         |      |        |
| AND OVERHEAD |               |          |         |      |        |
| REPAIRS      |               |          |         |      |        |
| PERFORMED BY |               |          |         |      |        |
| SRI, AND     |               |          |         |      |        |
| DATA         |               |          |         |      |        |
| PROVIDED     |               |          |         |      |        |
|              |               |          |         |      |        |
| BY           |               |          |         |      |        |
| RELIABILITY  |               |          |         |      |        |
| ASSURANCE    |               |          |         |      |        |
| CONCERNING   |               |          |         |      |        |
| MARS         |               |          |         |      |        |
| REPAIRS, AND |               |          |         |      |        |
| DETERMINED   |               |          |         |      |        |
| THAT         |               |          |         |      |        |
|              |               |          |         |      |        |
| ALL AS-BUILT |               |          |         |      |        |
| REPAIRS      |               |          |         |      |        |
| PERFORMED ON |               |          |         |      |        |
| THE ET FLEET |               |          |         |      |        |
| ARE          |               |          |         |      |        |
| ACCEPTABLE   |               |          |         |      |        |
|              |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
| INTEROFFICE  |               |          |         |      |        |
| MEMORANDUM   |               |          |         |      |        |
| 3572-87-156) |               |          |         |      |        |
|              |               |          |         |      |        |
| ITEM CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| TASK CLOSED  |               |          |         |      |        |
|              |               |          |         |      |        |
| X. TPS       |               |          |         |      |        |
| ENGINEERING, |               |          |         |      |        |
| AMT, AND     |               |          |         |      |        |
| QUALITY      |               |          |         |      |        |
| ENGINEERS TO |               |          |         |      |        |
| ANALYZE THE  |               |          |         |      |        |
|              |               |          |         |      |        |
| P            |               |          |         |      |        |
| OSSIBILITIES |               |          |         |      |        |
| OF           |               |          |         |      |        |
| ESTABLISHING |               |          |         |      |        |
| A            |               |          |         |      |        |
| PERFORMANCE  |               |          |         |      |        |
| RATING TEST  |               |          |         |      |        |
| FOR          |               |          |         |      |        |
|              |               |          |         |      |        |
| C            |               |          |         |      |        |
| ERTIFICATION |               |          |         |      |        |
| OR           |               |          |         |      |        |
| PRODUCTION   |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| TESTERS      |               |          |         |      |        |
|              |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| STATEMENT:   |               |          |         |      |        |
|              |               |          |         |      |        |
| AN           |               |          |         |      |        |
| EVALUATION   |               |          |         |      |        |
| OF THE TEST  |               |          |         |      |        |
| DATA BY TPS  |               |          |         |      |        |
| ENGINEERING, |               |          |         |      |        |
| QUALITY      |               |          |         |      |        |
| ENGINEERING  |               |          |         |      |        |
|              |               |          |         |      |        |
| AND AMT HAS  |               |          |         |      |        |
| DETERMINED   |               |          |         |      |        |
| THAT THE     |               |          |         |      |        |
| DEVELOPMENT  |               |          |         |      |        |
| OF A         |               |          |         |      |        |
| PERFORMANCE  |               |          |         |      |        |
| RATING       |               |          |         |      |        |
|              |               |          |         |      |        |
| TEST FOR     |               |          |         |      |        |
| CERTIFYING   |               |          |         |      |        |
| TECHNICIANS  |               |          |         |      |        |
| FOR          |               |          |         |      |        |
| PRODUCTION   |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| TESTING IS   |               |          |         |      |        |
|              |               |          |         |      |        |
| POSSIBLE;    |               |          |         |      |        |
| THE TEST IS  |               |          |         |      |        |
| TO DETERMINE |               |          |         |      |        |
| THE          |               |          |         |      |        |
| TECHNICIANS  |               |          |         |      |        |
| ABILITY TO   |               |          |         |      |        |
| PERFORM      |               |          |         |      |        |
|              |               |          |         |      |        |
| AGAINST SOME |               |          |         |      |        |
| PR           |               |          |         |      |        |
| EESTABLISHED |               |          |         |      |        |
| CRITERIA. A  |               |          |         |      |        |
| TEST PLAN    |               |          |         |      |        |
| HAS BEEN     |               |          |         |      |        |
| DEVELOPED    |               |          |         |      |        |
|              |               |          |         |      |        |
| BY QUALITY   |               |          |         |      |        |
| ENGINEERING  |               |          |         |      |        |
| TO ACQUIRE   |               |          |         |      |        |
| DATA FOR USE |               |          |         |      |        |
| AS A         |               |          |         |      |        |
| STATISTICAL  |               |          |         |      |        |
| BASIS        |               |          |         |      |        |
|              |               |          |         |      |        |
| FOR          |               |          |         |      |        |
| ESTABLISHING |               |          |         |      |        |
| THE          |               |          |         |      |        |
| ACCEPTANCE   |               |          |         |      |        |
| CRITERIA FOR |               |          |         |      |        |
| THE          |               |          |         |      |        |
| C            |               |          |         |      |        |
| ERTIFICATION |               |          |         |      |        |
| TEST         |               |          |         |      |        |
|              |               |          |         |      |        |
| IM           |               |          |         |      |        |
| PLEMENTATION |               |          |         |      |        |
| OF THE       |               |          |         |      |        |
| PROFICIENCY  |               |          |         |      |        |
| TEST         |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
| INTO THE     |               |          |         |      |        |
| APPLICABLE   |               |          |         |      |        |
|              |               |          |         |      |        |
| TRAINING     |               |          |         |      |        |
| PROGRAM WILL |               |          |         |      |        |
| FOLLOW FINAL |               |          |         |      |        |
| APPROVAL OF  |               |          |         |      |        |
| THE          |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
| BY THE       |               |          |         |      |        |
|              |               |          |         |      |        |
| ET           |               |          |         |      |        |
| C            |               |          |         |      |        |
| ERTIFICATION |               |          |         |      |        |
| BOARD.       |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
| INTEROFFICE  |               |          |         |      |        |
| MEMORANDUM   |               |          |         |      |        |
| 3743-88-196  |               |          |         |      |        |
|              |               |          |         |      |        |
| AND QUALITY  |               |          |         |      |        |
| ENGINEERING  |               |          |         |      |        |
| TEST PLAN    |               |          |         |      |        |
| -010)        |               |          |         |      |        |
|              |               |          |         |      |        |
| TASK III.    |               |          |         |      |        |
| CLEARANCE OF |               |          |         |      |        |
| E            |               |          |         |      |        |
| FFECTIVITIES |               |          |         |      |        |
|              |               |          |         |      |        |
| NO           |               |          |         |      |        |
| CONSTRAINTS  |               |          |         |      |        |
|              |               |          |         |      |        |
| LWT-31:      |               |          |         |      |        |
|              |               |          |         |      |        |
| SENIOR MRB   |               |          |         |      |        |
| MARS/AR      |               |          |         |      |        |
| REVIEW       |               |          |         |      |        |
| DOCUMENT     |               |          |         |      |        |
| 1484R,       |               |          |         |      |        |
| APPROVAL     |               |          |         |      |        |
| DATED        |               |          |         |      |        |
| 3/14/86      |               |          |         |      |        |
|              |               |          |         |      |        |
| (REFERENCE   |               |          |         |      |        |
| MARS         |               |          |         |      |        |
| T-78724,     |               |          |         |      |        |
| ITEM 10)     |               |          |         |      |        |
|              |               |          |         |      |        |
| ALL OTHER    |               |          |         |      |        |
| VEHICLES ARE |               |          |         |      |        |
| CLEARED FOR  |               |          |         |      |        |
| FLIGHT BASED |               |          |         |      |        |
| UPON         |               |          |         |      |        |
| EN           |               |          |         |      |        |
| GINEERING\'S |               |          |         |      |        |
|              |               |          |         |      |        |
| ASSESSMENT   |               |          |         |      |        |
| IN TASKS     |               |          |         |      |        |
| II.R AND     |               |          |         |      |        |
| II.W         |               |          |         |      |        |
|              |               |          |         |      |        |
| TASK IV.     |               |          |         |      |        |
| CAPS CLOSURE |               |          |         |      |        |
| SUMMARY      |               |          |         |      |        |
|              |               |          |         |      |        |
| PENDING      |               |          |         |      |        |
| CLOSURE OF   |               |          |         |      |        |
| TASK II.X    |               |          |         |      |        |
|              |               |          |         |      |        |
| DEFECTIVE    |               |          |         |      |        |
| TOOLING,     |               |          |         |      |        |
| EMPLOYEE     |               |          |         |      |        |
| ERRORS, AND  |               |          |         |      |        |
| PROCEDURE    |               |          |         |      |        |
| DEFICIENCIES |               |          |         |      |        |
| WERE         |               |          |         |      |        |
|              |               |          |         |      |        |
| ALL FOUND TO |               |          |         |      |        |
| HAVE         |               |          |         |      |        |
| CONTRIBUTED  |               |          |         |      |        |
| TO THE       |               |          |         |      |        |
| PROBLEMS     |               |          |         |      |        |
| ENCOUNTERED  |               |          |         |      |        |
| WITH LWT     |               |          |         |      |        |
|              |               |          |         |      |        |
| 31\. TO      |               |          |         |      |        |
| PRECLUDE     |               |          |         |      |        |
| THESE        |               |          |         |      |        |
| PROBLEMS     |               |          |         |      |        |
| FROM         |               |          |         |      |        |
| RECURRING, A |               |          |         |      |        |
| NUMBER OF    |               |          |         |      |        |
| CORRECTIVE   |               |          |         |      |        |
|              |               |          |         |      |        |
| ACTIONS HAVE |               |          |         |      |        |
| BEEN TAKEN.  |               |          |         |      |        |
| THESE        |               |          |         |      |        |
| CORRECTIVE   |               |          |         |      |        |
| ACTIONS ARE: |               |          |         |      |        |
|              |               |          |         |      |        |
| O RECEIVING  |               |          |         |      |        |
| ACCEPTANCE   |               |          |         |      |        |
| PLANS HAVE   |               |          |         |      |        |
| BEEN CREATED |               |          |         |      |        |
| FOR PLUG     |               |          |         |      |        |
| PULL TEST    |               |          |         |      |        |
|              |               |          |         |      |        |
| SAMPLE       |               |          |         |      |        |
| MANDRELS,    |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| CORING TOOLS |               |          |         |      |        |
| AND PLUG     |               |          |         |      |        |
| PULL         |               |          |         |      |        |
| CLOSEOUT     |               |          |         |      |        |
| TOOLS        |               |          |         |      |        |
|              |               |          |         |      |        |
| O A TOOL     |               |          |         |      |        |
| DRAWING HAS  |               |          |         |      |        |
| BEEN CREATED |               |          |         |      |        |
| FOR THE PLUG |               |          |         |      |        |
| PULL         |               |          |         |      |        |
| CLOSEOUT     |               |          |         |      |        |
| TOOL         |               |          |         |      |        |
|              |               |          |         |      |        |
| O A          |               |          |         |      |        |
| C            |               |          |         |      |        |
| ERTIFICATION |               |          |         |      |        |
| COURSE FOR   |               |          |         |      |        |
| CLOSING OUT  |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| HOLES AND    |               |          |         |      |        |
| SLA VENTS    |               |          |         |      |        |
|              |               |          |         |      |        |
| IN CRITICAL  |               |          |         |      |        |
| AREAS HAS    |               |          |         |      |        |
| BEEN CREATED |               |          |         |      |        |
|              |               |          |         |      |        |
| O AN         |               |          |         |      |        |
| APPROVED     |               |          |         |      |        |
| PROCEDURE    |               |          |         |      |        |
| HAS BEEN     |               |          |         |      |        |
| CREATED FOR  |               |          |         |      |        |
| R            |               |          |         |      |        |
| EWORK/REPAIR |               |          |         |      |        |
| TO           |               |          |         |      |        |
|              |               |          |         |      |        |
| CRITICAL     |               |          |         |      |        |
| AREAS        |               |          |         |      |        |
|              |               |          |         |      |        |
| O SRI\'S     |               |          |         |      |        |
| T-009 AAND   |               |          |         |      |        |
| T-010 HAVE   |               |          |         |      |        |
| BEEN         |               |          |         |      |        |
| REV          |               |          |         |      |        |
| ISED/CREATED |               |          |         |      |        |
| FOR REPAIRS  |               |          |         |      |        |
|              |               |          |         |      |        |
| PERFORMED    |               |          |         |      |        |
| WITHIN HIGH  |               |          |         |      |        |
| HEAT AREAS   |               |          |         |      |        |
| (LH2 AFT     |               |          |         |      |        |
| DOME AND L02 |               |          |         |      |        |
| FORWARD      |               |          |         |      |        |
|              |               |          |         |      |        |
| OGIVE,       |               |          |         |      |        |
| R            |               |          |         |      |        |
| ESPECTIVELY) |               |          |         |      |        |
|              |               |          |         |      |        |
| O A          |               |          |         |      |        |
| SHAKEDOWN    |               |          |         |      |        |
| INSPECTION   |               |          |         |      |        |
| IS NOW       |               |          |         |      |        |
| REQUIRED FOR |               |          |         |      |        |
| THE ET PRIOR |               |          |         |      |        |
| TO IT        |               |          |         |      |        |
|              |               |          |         |      |        |
| LEAVING      |               |          |         |      |        |
| FINAL        |               |          |         |      |        |
| ASSEMBLY FOR |               |          |         |      |        |
| BUILDING     |               |          |         |      |        |
| 420.         |               |          |         |      |        |
| BUILDING 420 |               |          |         |      |        |
| PERFORMS     |               |          |         |      |        |
|              |               |          |         |      |        |
| AN           |               |          |         |      |        |
| INSPECTION   |               |          |         |      |        |
| UPON THE     |               |          |         |      |        |
| RECEIPT OF   |               |          |         |      |        |
| THE TANK     |               |          |         |      |        |
|              |               |          |         |      |        |
| O QUALITY    |               |          |         |      |        |
| CONTROL      |               |          |         |      |        |
| SUPERVISORS  |               |          |         |      |        |
| ARE          |               |          |         |      |        |
| REVIEWING    |               |          |         |      |        |
| AND          |               |          |         |      |        |
| VERIFYING    |               |          |         |      |        |
| THAT SRI     |               |          |         |      |        |
|              |               |          |         |      |        |
| REQUIREMENTS |               |          |         |      |        |
| ARE NOT      |               |          |         |      |        |
| BEING        |               |          |         |      |        |
| VIOLATED     |               |          |         |      |        |
| PRIOR TO     |               |          |         |      |        |
| AUTHORIZING  |               |          |         |      |        |
| REWORK       |               |          |         |      |        |
|              |               |          |         |      |        |
| O PI 1518    |               |          |         |      |        |
| HAS BEEN     |               |          |         |      |        |
| REVISED TO   |               |          |         |      |        |
| BETTER       |               |          |         |      |        |
| DETAIL       |               |          |         |      |        |
| INSTRUCTIONS |               |          |         |      |        |
| FOR          |               |          |         |      |        |
| REPAIRING    |               |          |         |      |        |
|              |               |          |         |      |        |
| PLUG PULL    |               |          |         |      |        |
| HOLES, SLA   |               |          |         |      |        |
| VENT HOLES   |               |          |         |      |        |
| AND          |               |          |         |      |        |
| IRREGULAR    |               |          |         |      |        |
| SHAPED       |               |          |         |      |        |
| DEFECTS      |               |          |         |      |        |
|              |               |          |         |      |        |
| O \"NO       |               |          |         |      |        |
| TEST\"       |               |          |         |      |        |
| CRITERIA HAS |               |          |         |      |        |
| BEEN         |               |          |         |      |        |
| DEVELOPED TO |               |          |         |      |        |
| DETERMINE    |               |          |         |      |        |
| TEST         |               |          |         |      |        |
| PERFORMANCE  |               |          |         |      |        |
|              |               |          |         |      |        |
| A            |               |          |         |      |        |
| CCEPTABILITY |               |          |         |      |        |
|              |               |          |         |      |        |
| O A          |               |          |         |      |        |
| PERFORMANCE  |               |          |         |      |        |
| RATING TEST  |               |          |         |      |        |
| FOR          |               |          |         |      |        |
| CERTIFYING   |               |          |         |      |        |
| TECHNICIANS  |               |          |         |      |        |
| FOR PLUG     |               |          |         |      |        |
|              |               |          |         |      |        |
| PULLING HAS  |               |          |         |      |        |
| BEEN FOUND   |               |          |         |      |        |
| TO BE        |               |          |         |      |        |
| PRACTICAL.   |               |          |         |      |        |
| QUALITY      |               |          |         |      |        |
| ENGINEERING  |               |          |         |      |        |
| IS           |               |          |         |      |        |
|              |               |          |         |      |        |
| DEVELOPING   |               |          |         |      |        |
| SPECIFIC     |               |          |         |      |        |
| TESTING      |               |          |         |      |        |
| CRITERIA     |               |          |         |      |        |
|              |               |          |         |      |        |
| THESE        |               |          |         |      |        |
| CORRECTIVE   |               |          |         |      |        |
| ACTIONS      |               |          |         |      |        |
| PROVIDE FOR  |               |          |         |      |        |
| GREATER      |               |          |         |      |        |
| CONTROL OVER |               |          |         |      |        |
| THE VARIOUS  |               |          |         |      |        |
|              |               |          |         |      |        |
| CONDITIONS   |               |          |         |      |        |
| THAT         |               |          |         |      |        |
| CONTRIBUTED  |               |          |         |      |        |
| TO THE       |               |          |         |      |        |
| PROBLEMS     |               |          |         |      |        |
| ENCOUNTERED  |               |          |         |      |        |
| WITH LWT 31  |               |          |         |      |        |
|              |               |          |         |      |        |
| AND WILL     |               |          |         |      |        |
| PREVENT      |               |          |         |      |        |
| PROBLEMS OF  |               |          |         |      |        |
| THIS         |               |          |         |      |        |
| MAGNITUDE    |               |          |         |      |        |
| FROM         |               |          |         |      |        |
| RECURRING.   |               |          |         |      |        |
| NO FURTHER   |               |          |         |      |        |
|              |               |          |         |      |        |
| ACTION IS    |               |          |         |      |        |
| REQUIRED     |               |          |         |      |        |
|              |               |          |         |      |        |
| THIS REPORT  |               |          |         |      |        |
| IS SUBMITTED |               |          |         |      |        |
| TO MSFC FOR  |               |          |         |      |        |
| CLOSURE      |               |          |         |      |        |
| REVIEW AND   |               |          |         |      |        |
| APPROVAL     |               |          |         |      |        |
+--------------+---------------+----------+---------+------+--------+
| **MSFC       |               |          |         |      |        |
| Response/C   |               |          |         |      |        |
| oncurrence** |               |          |         |      |        |
+--------------+---------------+----------+---------+------+--------+

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

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

  -------------- ------------------- ------------------- ----------- ----------- ------------
  **MSFC         **IFA#**\           **Contractor        **JSC#**\   **KSC#**\   **EICN#**\
  Report#**\     \--                 RPT#**\             \--         \--         \--
  A09950                             T-053                                       

  **Asmnt        **Asmnt Part        **Asmnt                                     
  Part#**\       Name**\             Serial/Lot#**\                              
  PI-1518 & SRI  TPS PLUG PULL PROC  N/A                                         

  **HCRIT CD**\  **FCRIT CD**\       **CAUSE CD**\       **FAIL                  
  \--            3                   MAP - MFG-ASY-INST  MODE**\                 
                                                         UC - UNSAT              

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

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

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

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

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

  **MAJOR DESIGN                                                                 
  CHANGES**                                                                      

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

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