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

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

+--------------+---------------+-----------+---------+------+--------+
| **MSFC       | **In-Flight   | **C       | **      | *    |        |
| Record \#**\ | Anomaly       | ontractor | JSC#**\ | *KSC |        |
| A11289       | Number**\     | Report    | \--     | #**\ |        |
|              | \--           | Number**\ |         | \--  |        |
|              |               | E-113     |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Problem    |               |           |         |      |        |
| Title**\     |               |           |         |      |        |
| TUMBLE VALVE |               |           |         |      |        |
| ARM AND FIRE |               |           |         |      |        |
| CIRCUIT      |               |           |         |      |        |
| FAILED       |               |           |         |      |        |
| DURING       |               |           |         |      |        |
| TESTING AT   |               |           |         |      |        |
| MAF          |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **EICN#**\   | **ELEMENT**\  | **Cont    | **F     | **   |        |
| \--          | ET            | ractor**\ | SCM#**\ | FCRI |        |
|              |               | MMMSS     | \--     | T**\ |        |
|              |               |           |         | 1    |        |
+--------------+---------------+-----------+---------+------+--------+
| **HCRIT**\   | **Sys_Lvl**\  | **Misc    |         |      |        |
| 1            | Y             | Codes**\  |         |      |        |
|              |               | A **(3)** |         |      |        |
|              |               | B C D E   |         |      |        |
|              |               | **(X)** F |         |      |        |
|              |               | G H I J K |         |      |        |
|              |               | L M N O   |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| *            | **NO          | *         | **SER/  | *    |        |
| *HARDWARE**\ | MENCLATURE**\ | *PART#**\ | LOT#**\ | *MAN |        |
| EIM          | LWT-16        | 809010    | 16      | UFAC |        |
|              |               | 10000-050 |         | TURE |        |
|              |               |           |         | R**\ |        |
|              |               |           |         | MMC  |        |
+--------------+---------------+-----------+---------+------+--------+
| *            | **NO          | *         | **SER/  | *    |        |
| *HARDWARE**\ | MENCLATURE**\ | *PART#**\ | LOT#**\ | *MAN |        |
| LRU          | N/A           | N/A       | N/A     | UFAC |        |
|              |               |           |         | TURE |        |
|              |               |           |         | R**\ |        |
|              |               |           |         | N/A  |        |
+--------------+---------------+-----------+---------+------+--------+
| *            | **NO          | *         | **SER/  | *    |        |
| *HARDWARE**\ | MENCLATURE**\ | *PART#**\ | LOT#**\ | *MAN |        |
| NCA          | TUMBLE VALVE  | PD710     | N/A     | UFAC |        |
|              | ARM CIR       | 00082-009 |         | TURE |        |
|              |               |           |         | R**\ |        |
|              |               |           |         | MMC  |        |
+--------------+---------------+-----------+---------+------+--------+
| **Test/      | **Prevailing  | **F /     | **Fail  | **   |        |
| Operation**\ | Condtion**\   | U**\      | Mode**\ | Caus |        |
| L - FLD      | F -           | F         | EV -    | e**\ |        |
|              | FUNCTIONAL    |           | NOT-    | E    |        |
|              |               |           | TO-SPEC | TT - |        |
|              |               |           |         | EI-T |        |
|              |               |           |         | EST- |        |
|              |               |           |         | EQUP |        |
+--------------+---------------+-----------+---------+------+--------+
| **System**\  | **Defect**\   | **Ma      | **Work  | **   |        |
| ELECTRICAL   | \--           | terial**\ | Con     | Fail |        |
|              |               | E - EL    | tact**\ | Dat  |        |
|              |               | C/W       | J.      | e**\ |        |
|              |               |           | ADAMS   | 02   |        |
|              |               |           |         | /25/ |        |
|              |               |           |         | 1988 |        |
+--------------+---------------+-----------+---------+------+--------+
| **Received   | **Date        | **FMEA    | **IFA:  | *    |        |
| at MSFC**\   | Isolated**\   | Ref       | Mission | *Mis |        |
| 03/04/1988   | \--           | erence**\ | P       | sion |        |
|              |               | 3.5.X.X   | hase**\ | Ela  |        |
|              |               |           | \--     | psed |        |
|              |               |           |         | Tim  |        |
|              |               |           |         | e**\ |        |
|              |               |           |         | \--  |        |
+--------------+---------------+-----------+---------+------+--------+
| *            |               | **S       |         | **   |        |
| *Location**\ |               | ymptom**\ |         | Time |        |
| MAF          |               | EF -      |         | Cycl |        |
|              |               | INT       |         | e**\ |        |
|              |               | ERMITTENT |         | N/A  |        |
+--------------+---------------+-----------+---------+------+--------+
| *            |               |           |         |      |        |
| *Effectivity |               |           |         |      |        |
| Text**\      |               |           |         |      |        |
| LWTS 16, 20, |               |           |         |      |        |
| 21, 22,      |               |           |         |      |        |
| 24/SUBS      |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Vehicle    |               |           |         |      |        |
| Effectivity  |               |           |         |      |        |
| Codes**      |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Vehicle    | **Vehicle     | **Vehicle | **      | *    |        |
| 1**\         | 2**\          | 3**\      | Vehicle | *Veh |        |
| \--          | \--           | \--       | 4**\    | icle |        |
|              |               |           | \--     | 5**\ |        |
|              |               |           |         | \--  |        |
+--------------+---------------+-----------+---------+------+--------+
| **Mission    |               |           |         |      |        |
| Effectivity  |               |           |         |      |        |
| Codes**      |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Mssn 1**\  | **Mssn 2**\   | **Mssn    | **Mssn  | **   |        |
| \--          | \--           | 3**\      | 4**\    | Mssn |        |
|              |               | \--       | \--     | 5**\ |        |
|              |               |           |         | \--  |        |
+--------------+---------------+-----------+---------+------+--------+
| **Estimated  |               |           |         |      |        |
| Completion   |               |           |         |      |        |
| Dates**      |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **MSFC       | **Contractor  | **LVL 3   | *       |      |        |
| Approved     | Req Defer     | Close**\  | *Remark |      |        |
| Defer Until  | Until Date**\ | \--       | /       |      |        |
| Date**\      | \--           |           | Ac      |      |        |
| \--          |               |           | tion**\ |      |        |
|              |               |           | \--     |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **I          |               |           |         |      |        |
| nvestigation |               |           |         |      |        |
| / Resolution |               |           |         |      |        |
| Summary**    |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Last MSFC  | **CN RSLV     | **Defer   | **Add   | *    |        |
| Update**\    | SBMT**\       | Date**\   | Date**\ | *R/C |        |
| 02/13/1995   | 05/18/1988    | \--       | 03/     | Code |        |
|              |               |           | 09/1988 | s**\ |        |
|              |               |           |         | 3 -  |        |
|              |               |           |         | F/TE |        |
|              |               |           |         | \--  |        |
|              |               |           |         | \--  |        |
+--------------+---------------+-----------+---------+------+--------+
| **Assignee** |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Design**\  | **Chief       | **S &     | **Pro   | *    |        |
| P. MULLER    | Engineer**\   | MA**\     | ject**\ | *Pro |        |
|              | J. NICHOLS    | R.        | M.      | ject |        |
|              |               | JACKSON   | PESSIN  | MG   |        |
|              |               |           |         | R**\ |        |
|              |               |           |         | G.   |        |
|              |               |           |         | BRID |        |
|              |               |           |         | WELL |        |
+--------------+---------------+-----------+---------+------+--------+
| **Approval** |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Design**\  | **Chief       | **S &     | **Pro   | *    |        |
| A. JACKMAN   | Engineer**\   | MA**\     | ject**\ | *Pro |        |
|              | J. NICHOLS    | R.        | M.      | ject |        |
|              |               | JACKSON   | PESSIN  | MG   |        |
|              |               |           |         | R**\ |        |
|              |               |           |         | G.   |        |
|              |               |           |         | BRID |        |
|              |               |           |         | WELL |        |
+--------------+---------------+-----------+---------+------+--------+
| **PAC        | **PAC Review  | **MSFC    | **St    | *    |        |
| Assignee**\  | Complete**\   | Closure   | atus**\ | *F/A |        |
| J.EL-IBRAHIM | JE            | Date**\   | C -     | C    |        |
|              |               | 0         | CLOSED  | ompl |        |
|              |               | 6/07/1988 |         | etio |        |
|              |               |           |         | n**\ |        |
|              |               |           |         | \--  |        |
+--------------+---------------+-----------+---------+------+--------+
| **Problem    | **SEV**\      | **Program | **      | **O  |        |
| Type**\      | \--           | Name**\   | REVL**\ | PRIN |        |
| \--          |               | \--       | \--     | C**\ |        |
|              |               |           |         | \--  |        |
+--------------+---------------+-----------+---------+------+--------+
| **FUNC       | **Software    | *         |         | **SU | **So   |
| MOD**\       | E             | *Software |         | BTYP | ftware |
| \--          | ffectivity**\ | Fail      |         | E**\ | C      |
|              | \-- \-- \--   | CD**\     |         | \--  | losure |
|              | \-- \--       | \--       |         |      | CD**\  |
|              |               |           |         |      | \--    |
+--------------+---------------+-----------+---------+------+--------+
| **RES PERSON | **Approval    |           |         |      |        |
| L2**\        | Signature     |           |         |      |        |
| \--          | L3**\         |           |         |      |        |
|              | \--           |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Related    | **Related     |           |         |      |        |
| Document     | Document      |           |         |      |        |
| Type**\      | ID**\         |           |         |      |        |
| \--          | \--           |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Related    |               |           |         |      |        |
| Document     |               |           |         |      |        |
| Title**\     |               |           |         |      |        |
| \--          |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Related    | **Related     |           |         |      |        |
| Document     | Document      |           |         |      |        |
| Type**\      | ID**\         |           |         |      |        |
| \--          | \--           |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Related    |               |           |         |      |        |
| Document     |               |           |         |      |        |
| Title**\     |               |           |         |      |        |
| \--          |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Related    | **Related     |           |         |      |        |
| Document     | Document      |           |         |      |        |
| Type**\      | ID**\         |           |         |      |        |
| \--          | \--           |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Related    |               |           |         |      |        |
| Document     |               |           |         |      |        |
| Title**\     |               |           |         |      |        |
| \--          |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Contractor |               |           |         |      |        |
| Status       |               |           |         |      |        |
| Summary**    |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Reliabi    |               |           |         |      |        |
| lity/Quality |               |           |         |      |        |
| Assurance    |               |           |         |      |        |
| Concerns,    |               |           |         |      |        |
| Recomm       |               |           |         |      |        |
| endations:** |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Problem    |               |           |         |      |        |
| D            |               |           |         |      |        |
| escription** |               |           |         |      |        |
|              |               |           |         |      |        |
| THE TUMBLE   |               |           |         |      |        |
| VALVE ARM    |               |           |         |      |        |
| AND FIRE     |               |           |         |      |        |
| CIRCUITS ON  |               |           |         |      |        |
| LWT-16 WERE  |               |           |         |      |        |
| BEING TESTED |               |           |         |      |        |
|              |               |           |         |      |        |
| PER TEST     |               |           |         |      |        |
| PROCED       |               |           |         |      |        |
| URE-6R105-FT |               |           |         |      |        |
| FOLLOWING    |               |           |         |      |        |
| THE          |               |           |         |      |        |
| M            |               |           |         |      |        |
| ODIFICATIONS |               |           |         |      |        |
| AND REPAIR   |               |           |         |      |        |
| TO           |               |           |         |      |        |
|              |               |           |         |      |        |
| THE ET AT    |               |           |         |      |        |
| MAF. THE     |               |           |         |      |        |
| ARMED        |               |           |         |      |        |
| INDICATION   |               |           |         |      |        |
| LAMP ON THE  |               |           |         |      |        |
| TEST CONSOLE |               |           |         |      |        |
| DID NOT      |               |           |         |      |        |
|              |               |           |         |      |        |
| SHOW AN      |               |           |         |      |        |
| ARMED        |               |           |         |      |        |
| CONDITION    |               |           |         |      |        |
| UNTIL TWO    |               |           |         |      |        |
| MINUTES HAD  |               |           |         |      |        |
| ELAPSED FROM |               |           |         |      |        |
| THE TIME     |               |           |         |      |        |
|              |               |           |         |      |        |
| THE ARM      |               |           |         |      |        |
| POWER SWITCH |               |           |         |      |        |
| WAS          |               |           |         |      |        |
| ACTIVATED.   |               |           |         |      |        |
| THE FAILURE  |               |           |         |      |        |
| DID NOT      |               |           |         |      |        |
| REPEAT UPON  |               |           |         |      |        |
|              |               |           |         |      |        |
| LATER        |               |           |         |      |        |
| RETEST.      |               |           |         |      |        |
| DURING       |               |           |         |      |        |
| VENDOR       |               |           |         |      |        |
| ACCEPTANCE   |               |           |         |      |        |
| TEST OF THE  |               |           |         |      |        |
| SWITCH       |               |           |         |      |        |
| MODULE THE   |               |           |         |      |        |
|              |               |           |         |      |        |
| MAXIMUM      |               |           |         |      |        |
| ALLOWABLE    |               |           |         |      |        |
| TIME IS 100  |               |           |         |      |        |
| MILLISECONDS |               |           |         |      |        |
| (REF. MARS   |               |           |         |      |        |
| T98519).     |               |           |         |      |        |
| THIS         |               |           |         |      |        |
|              |               |           |         |      |        |
| TEST WAS THE |               |           |         |      |        |
| FIRST USED   |               |           |         |      |        |
| OF THE NEW   |               |           |         |      |        |
| TEST CONSOLE |               |           |         |      |        |
| ON FLIGHT    |               |           |         |      |        |
| HARDWARE     |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **Contractor |               |           |         |      |        |
| In           |               |           |         |      |        |
| vestigation/ |               |           |         |      |        |
| Resolution** |               |           |         |      |        |
|              |               |           |         |      |        |
| R/C: THE ARM |               |           |         |      |        |
| SWITCH AND   |               |           |         |      |        |
| THE SAFE     |               |           |         |      |        |
| SWITCH ON    |               |           |         |      |        |
| THE TEST     |               |           |         |      |        |
| CONSOLE      |               |           |         |      |        |
| INVOLVED     |               |           |         |      |        |
|              |               |           |         |      |        |
| WITH THE     |               |           |         |      |        |
| TEST FAILURE |               |           |         |      |        |
| HAVE BEEN    |               |           |         |      |        |
| REPLACED     |               |           |         |      |        |
| WITH AN      |               |           |         |      |        |
| IMPROVED     |               |           |         |      |        |
| TYPE OF      |               |           |         |      |        |
|              |               |           |         |      |        |
| SWITCH       |               |           |         |      |        |
|              |               |           |         |      |        |
| CAUSE: THE   |               |           |         |      |        |
| CAUSE OF THE |               |           |         |      |        |
| LWT-16 TEST  |               |           |         |      |        |
| FAILURE      |               |           |         |      |        |
| COULD NOT BE |               |           |         |      |        |
| DETERMINED   |               |           |         |      |        |
|              |               |           |         |      |        |
| WITH         |               |           |         |      |        |
| CERTAINTY. A |               |           |         |      |        |
| POSSIBLE     |               |           |         |      |        |
| CAUSE WAS    |               |           |         |      |        |
| THE ARM      |               |           |         |      |        |
| SWITCH ON    |               |           |         |      |        |
| THE TEST     |               |           |         |      |        |
|              |               |           |         |      |        |
| CONSOLE      |               |           |         |      |        |
| WHICH HAD    |               |           |         |      |        |
| POOR TACTILE |               |           |         |      |        |
| INDICATION   |               |           |         |      |        |
| OF CONTACT   |               |           |         |      |        |
| OPERATION    |               |           |         |      |        |
|              |               |           |         |      |        |
| 5/18/88      |               |           |         |      |        |
| GENERAL -    |               |           |         |      |        |
|              |               |           |         |      |        |
| THE TUMBLING |               |           |         |      |        |
| SYSTEM       |               |           |         |      |        |
| COMPRISES A  |               |           |         |      |        |
| PYROTECHNIC  |               |           |         |      |        |
| VALVE, A     |               |           |         |      |        |
| LANCE, AND   |               |           |         |      |        |
|              |               |           |         |      |        |
| ELECTRICAL   |               |           |         |      |        |
| CONTROL      |               |           |         |      |        |
| CIRCUITS.    |               |           |         |      |        |
| THE          |               |           |         |      |        |
| ELECTRICAL   |               |           |         |      |        |
| CIRCUITS     |               |           |         |      |        |
| UTILIZE      |               |           |         |      |        |
| THREE        |               |           |         |      |        |
|              |               |           |         |      |        |
| WIRE         |               |           |         |      |        |
| HARNESSES    |               |           |         |      |        |
| AND A SWITCH |               |           |         |      |        |
| MODULE. THE  |               |           |         |      |        |
| SWITCH       |               |           |         |      |        |
| MODULE       |               |           |         |      |        |
| CONTAINS A   |               |           |         |      |        |
|              |               |           |         |      |        |
| RELAY WHICH, |               |           |         |      |        |
| WHEN         |               |           |         |      |        |
| ENERGIZED BY |               |           |         |      |        |
| THE \"ARM\"  |               |           |         |      |        |
| SIGNAL FROM  |               |           |         |      |        |
| THE ORBITER, |               |           |         |      |        |
|              |               |           |         |      |        |
| COMPLETES    |               |           |         |      |        |
| CIRCUITS TO  |               |           |         |      |        |
| SEND AN      |               |           |         |      |        |
| \"ARMED      |               |           |         |      |        |
| INDICATION\" |               |           |         |      |        |
| SIGNAL TO    |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| ORBITER AND  |               |           |         |      |        |
| TO CONNECT   |               |           |         |      |        |
| THE          |               |           |         |      |        |
| PYROTECHNIC  |               |           |         |      |        |
| VALVE        |               |           |         |      |        |
| EXPLOSIVE    |               |           |         |      |        |
| INITIATOR TO |               |           |         |      |        |
|              |               |           |         |      |        |
| THE \"FIRE\" |               |           |         |      |        |
| SIGNAL       |               |           |         |      |        |
| WIRING.      |               |           |         |      |        |
| DURING       |               |           |         |      |        |
| TESTING OF   |               |           |         |      |        |
| THE          |               |           |         |      |        |
| ELECTRICAL   |               |           |         |      |        |
| CIRCUITS OF  |               |           |         |      |        |
|              |               |           |         |      |        |
| COMPLETED    |               |           |         |      |        |
| ET\'S, TEST  |               |           |         |      |        |
| EQUIPMENT    |               |           |         |      |        |
| CAPABLE OF   |               |           |         |      |        |
| SIMULATING   |               |           |         |      |        |
| THE ORBITER  |               |           |         |      |        |
| IS           |               |           |         |      |        |
|              |               |           |         |      |        |
| CONNECTED TO |               |           |         |      |        |
| THE          |               |           |         |      |        |
| ET/ORBITER   |               |           |         |      |        |
| ELECTRICAL   |               |           |         |      |        |
| UMBILICALS   |               |           |         |      |        |
|              |               |           |         |      |        |
| TASK I.      |               |           |         |      |        |
| FAILURE      |               |           |         |      |        |
| I            |               |           |         |      |        |
| NVESTIGATION |               |           |         |      |        |
|              |               |           |         |      |        |
| A. FAILURE   |               |           |         |      |        |
| ANALYSIS     |               |           |         |      |        |
| T-98524 WAS  |               |           |         |      |        |
| PERFORMED ON |               |           |         |      |        |
| THE SWITCH   |               |           |         |      |        |
|              |               |           |         |      |        |
| MODULE WHICH |               |           |         |      |        |
| HAS BEEN     |               |           |         |      |        |
| REMOVED FROM |               |           |         |      |        |
| LWT-16. THE  |               |           |         |      |        |
| MODULE       |               |           |         |      |        |
|              |               |           |         |      |        |
| HAD BEEN     |               |           |         |      |        |
| REMOVED FROM |               |           |         |      |        |
| THE ET AS    |               |           |         |      |        |
| PART OF THE  |               |           |         |      |        |
| DISPOSITION  |               |           |         |      |        |
|              |               |           |         |      |        |
| OF MARS      |               |           |         |      |        |
| T-98519,     |               |           |         |      |        |
| WHICH        |               |           |         |      |        |
| COVERED THE  |               |           |         |      |        |
| ORIGINAL     |               |           |         |      |        |
| TEST FAILURE |               |           |         |      |        |
|              |               |           |         |      |        |
| ANALYSIS OF  |               |           |         |      |        |
| THE SWITCH   |               |           |         |      |        |
| MODULE FOUND |               |           |         |      |        |
| THAT IT MET  |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| PERFORMANCE  |               |           |         |      |        |
| REQUIREMENTS |               |           |         |      |        |
| FOR A NEW    |               |           |         |      |        |
| UNIT. THERE  |               |           |         |      |        |
| WAS          |               |           |         |      |        |
|              |               |           |         |      |        |
| NOTHING TO   |               |           |         |      |        |
| INDICATE     |               |           |         |      |        |
| THAT THE     |               |           |         |      |        |
| MODULE COULD |               |           |         |      |        |
| HAVE IN ANY  |               |           |         |      |        |
|              |               |           |         |      |        |
| WAY, CAUSED  |               |           |         |      |        |
| THE TEST     |               |           |         |      |        |
| FAILURE ON   |               |           |         |      |        |
| THE ET       |               |           |         |      |        |
|              |               |           |         |      |        |
| B. FAILURE   |               |           |         |      |        |
| ANALYSIS OF  |               |           |         |      |        |
| THE TEST     |               |           |         |      |        |
| CONSOLE AND  |               |           |         |      |        |
| THE          |               |           |         |      |        |
| ELECTRICAL   |               |           |         |      |        |
|              |               |           |         |      |        |
| TEST HARNESS |               |           |         |      |        |
| COULD FIND   |               |           |         |      |        |
| NO CLEAR     |               |           |         |      |        |
| INDICATION   |               |           |         |      |        |
| AS TO THE    |               |           |         |      |        |
|              |               |           |         |      |        |
| CAUSE OF THE |               |           |         |      |        |
| TEST         |               |           |         |      |        |
| FAILURE. THE |               |           |         |      |        |
| WIRE         |               |           |         |      |        |
| HARNESSES    |               |           |         |      |        |
| AND TEST     |               |           |         |      |        |
|              |               |           |         |      |        |
| CONSOLE WERE |               |           |         |      |        |
| EXAMINED IN  |               |           |         |      |        |
| DETAIL       |               |           |         |      |        |
| WITHOUT      |               |           |         |      |        |
| RESULT. THE  |               |           |         |      |        |
|              |               |           |         |      |        |
| RELAYS,      |               |           |         |      |        |
| TRANSISTOR,  |               |           |         |      |        |
| RESISTOR,    |               |           |         |      |        |
| LED, AND     |               |           |         |      |        |
| SWITCH IN    |               |           |         |      |        |
| THE          |               |           |         |      |        |
|              |               |           |         |      |        |
| TEST CONSOLE |               |           |         |      |        |
| ARM AND      |               |           |         |      |        |
| ARMED        |               |           |         |      |        |
| INDICATION   |               |           |         |      |        |
| CIRCUITS     |               |           |         |      |        |
| UNDERWENT    |               |           |         |      |        |
|              |               |           |         |      |        |
| COMPLETE     |               |           |         |      |        |
| DISASSEMBLY  |               |           |         |      |        |
| AND          |               |           |         |      |        |
| ANALYSIS,    |               |           |         |      |        |
| ALSO WITHOUT |               |           |         |      |        |
| RESULT       |               |           |         |      |        |
|              |               |           |         |      |        |
| IT WAS NOTED |               |           |         |      |        |
| HOWEVER THAT |               |           |         |      |        |
| THE ARM      |               |           |         |      |        |
| SWITCH WOULD |               |           |         |      |        |
| BE           |               |           |         |      |        |
|              |               |           |         |      |        |
| REPLACED     |               |           |         |      |        |
| WITH ONE     |               |           |         |      |        |
| WITH \"A     |               |           |         |      |        |
| MORE         |               |           |         |      |        |
| POSITIVE     |               |           |         |      |        |
| ACTION WHEN  |               |           |         |      |        |
|              |               |           |         |      |        |
| PLACED IN    |               |           |         |      |        |
| THE ARM      |               |           |         |      |        |
| POSITION\"   |               |           |         |      |        |
| (REFERENCE:  |               |           |         |      |        |
| INTEROFFICE  |               |           |         |      |        |
|              |               |           |         |      |        |
| MEMO         |               |           |         |      |        |
| 3613-88-109  |               |           |         |      |        |
| AND          |               |           |         |      |        |
| 3613-88-134) |               |           |         |      |        |
|              |               |           |         |      |        |
| TASKED       |               |           |         |      |        |
| CLOSED       |               |           |         |      |        |
|              |               |           |         |      |        |
| TASK II      |               |           |         |      |        |
| CORRECTIVE   |               |           |         |      |        |
| ACTION       |               |           |         |      |        |
|              |               |           |         |      |        |
| THE ARM      |               |           |         |      |        |
| SWITCH AND   |               |           |         |      |        |
| THE SAFE     |               |           |         |      |        |
| SWITCH ON    |               |           |         |      |        |
| THE TEST     |               |           |         |      |        |
| CONSOLE      |               |           |         |      |        |
| INVOLVED     |               |           |         |      |        |
|              |               |           |         |      |        |
| WITH THE     |               |           |         |      |        |
| TEST FAILURE |               |           |         |      |        |
| HAVE BEEN    |               |           |         |      |        |
| REPLACED     |               |           |         |      |        |
| WITH AN      |               |           |         |      |        |
| IMPROVED     |               |           |         |      |        |
| TYPE         |               |           |         |      |        |
|              |               |           |         |      |        |
| OF SWITCH    |               |           |         |      |        |
| (REFERENCE:  |               |           |         |      |        |
| TOOL CHANGE  |               |           |         |      |        |
| NOTICE TO    |               |           |         |      |        |
| TOOL DRAWING |               |           |         |      |        |
| NO           |               |           |         |      |        |
|              |               |           |         |      |        |
| F78-2358,    |               |           |         |      |        |
| CHANGE NO.   |               |           |         |      |        |
| 3)           |               |           |         |      |        |
|              |               |           |         |      |        |
| TASK CLOSED  |               |           |         |      |        |
|              |               |           |         |      |        |
| TASK III     |               |           |         |      |        |
| CLEARANCE OF |               |           |         |      |        |
| E            |               |           |         |      |        |
| FFECTIVITIES |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-16 MARS  |               |           |         |      |        |
| T-98519      |               |           |         |      |        |
| ADDRESSES    |               |           |         |      |        |
| THE TEST     |               |           |         |      |        |
| FAILURE      |               |           |         |      |        |
|              |               |           |         |      |        |
| LWT-20, 21,  |               |           |         |      |        |
| 22, THE ETS  |               |           |         |      |        |
| PASSED ALL   |               |           |         |      |        |
| IN PROCESS   |               |           |         |      |        |
| TESTS AND    |               |           |         |      |        |
|              |               |           |         |      |        |
| 2            |               |           |         |      |        |
| 4/SUBSEQUENT |               |           |         |      |        |
| ACCEPTANCE   |               |           |         |      |        |
| TESTS OF THE |               |           |         |      |        |
| TUMBLE VALVE |               |           |         |      |        |
| ARM          |               |           |         |      |        |
|              |               |           |         |      |        |
| CIRCUITS.    |               |           |         |      |        |
| FAILURE      |               |           |         |      |        |
| ANALYSIS OF  |               |           |         |      |        |
| THE SWITCH   |               |           |         |      |        |
|              |               |           |         |      |        |
| MODULE       |               |           |         |      |        |
| REMOVED FROM |               |           |         |      |        |
| LWT-16 FOUND |               |           |         |      |        |
| THAT IT      |               |           |         |      |        |
|              |               |           |         |      |        |
| EXCEEDED THE |               |           |         |      |        |
| PERFORMANCE  |               |           |         |      |        |
| REQUIREMENTS |               |           |         |      |        |
|              |               |           |         |      |        |
| FOR NEW      |               |           |         |      |        |
| UNITS        |               |           |         |      |        |
|              |               |           |         |      |        |
| TASK CLOSED  |               |           |         |      |        |
|              |               |           |         |      |        |
| TASK IV CAPS |               |           |         |      |        |
| CLOSURE      |               |           |         |      |        |
| SUMMARY      |               |           |         |      |        |
|              |               |           |         |      |        |
| A TEST       |               |           |         |      |        |
| FAILURE ON   |               |           |         |      |        |
| THE TUMBLE   |               |           |         |      |        |
| VALVE ARM    |               |           |         |      |        |
| CIRCUITS     |               |           |         |      |        |
| OCCURRED     |               |           |         |      |        |
|              |               |           |         |      |        |
| DURING       |               |           |         |      |        |
| RETEST OF    |               |           |         |      |        |
| LWT-16       |               |           |         |      |        |
| FOLLOWING    |               |           |         |      |        |
| M            |               |           |         |      |        |
| ODIFICATIONS |               |           |         |      |        |
| TO THE       |               |           |         |      |        |
|              |               |           |         |      |        |
| VEHICLE AT   |               |           |         |      |        |
| MAF. THIS    |               |           |         |      |        |
| WAS THE      |               |           |         |      |        |
| FIRST SUCH   |               |           |         |      |        |
| FAILURE IN   |               |           |         |      |        |
| THE ET       |               |           |         |      |        |
|              |               |           |         |      |        |
| PROGRAM.     |               |           |         |      |        |
| SUFFICIENT   |               |           |         |      |        |
| TESTS OF THE |               |           |         |      |        |
| ARM CIRCUITS |               |           |         |      |        |
| EXIST AT     |               |           |         |      |        |
|              |               |           |         |      |        |
| MAF AND KSC  |               |           |         |      |        |
| TO ASSURE    |               |           |         |      |        |
| PERFORMANCE  |               |           |         |      |        |
| OF THE       |               |           |         |      |        |
| SYSTEM ON    |               |           |         |      |        |
| ALL          |               |           |         |      |        |
|              |               |           |         |      |        |
| VEHICLES     |               |           |         |      |        |
|              |               |           |         |      |        |
| TASK CLOSED  |               |           |         |      |        |
|              |               |           |         |      |        |
| THIS CLOSURE |               |           |         |      |        |
| IS SUBMITTED |               |           |         |      |        |
| FOR MSFC     |               |           |         |      |        |
| REVIEW AND   |               |           |         |      |        |
| APPROVAL     |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+
| **MSFC       |               |           |         |      |        |
| Response/C   |               |           |         |      |        |
| oncurrence** |               |           |         |      |        |
+--------------+---------------+-----------+---------+------+--------+

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

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

  ---------------- ----------------------- ---------------- ----------- ----------- ------------
  **MSFC           **IFA#**\               **Contractor     **JSC#**\   **KSC#**\   **EICN#**\
  Report#**\       \--                     RPT#**\          \--         \--         \--
  A11289                                   E-113                                    

  **Asmnt Part#**\ **Asmnt Part Name**\    **Asmnt                                  
  PD71000082-009   TUMBLE VALVE ARM CIR    Serial/Lot#**\                           
                                           \--                                      

  **HCRIT CD**\    **FCRIT CD**\           **CAUSE CD**\    **FAIL                  
  \--              1                       UU - UNK-UND     MODE**\                 
                                                            EA - FAILS              
                                                            OFF                     

  **Asmnt FMEA**\  **Asmnt FM**\           **FMEA CSE**\    **FMEA                  
  3.5.1.2          2                       A                SCSE**\                 
                                                            N/A                     

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

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

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

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

  **MAJOR DESIGN                                                                    
  CHANGES**                                                                         

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

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