# SDR CA110107009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 6, 2011
- Submitted: March 15, 2011
- Operation: Air carrier
- Make and model: Boeing 737-7
- Registry model: [Boeing 737-7](https://openairdocs.org/model/boeing-737-7) (OpenAirDocs)
- Aircraft time: 231 hours
- System (JASC): [2797 · Flight Control System Wiring](https://openairdocs.org/jasc/2797)
- Part: Connector
- Part number: D14362
- Condition: Contaminated
- Location: Wheel Well
- Part time: 3,888 hours
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: L
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA110107009

## Discrepancy

CREW REPORTED STAB OUT OF TRIM LIGHT ILLUMINATED ON APPROACH.  ELECTRIC TRIM INTERMITTENT DURING MISSED APPROACH.  MAINTENANCE CARRIED OUT DFCS BITE TEST IAW FIM TASK 22-11 TASK 801.  LAST FLT LEG FAULTED STAB TRIM "A" MOTOR MSG, FAULT CODE 22-11177.  CLEANED S245 SWITCH ON FLAP DRUM DUE TO EVIDENCE OF MOISTURE.  UNABLE TO DUPLICATE FAULT ON GRD.  CONFIRMED A/P STAB TRIM WAS AT FAULT DURING APPROACH AFTER INTERROGATING DFCS IAW FIM 22-11 T801, FAULT CODE 22-11177 (CH A), ALONG WITH MANUAL ELECTRIC TRIM AS REPORTED BY FLT CREW.  DUE TO INTERMITTENT NATURE OF SNAG STAB INTERLOCK RLY (R580) REPLACED AND TESTED SERVICEABLE IAW AMM 27-41-98.  STAB TRIM CTL RLY (R64) REPLACED IAW WDM 27-41-12 AND TESTED SERVICEABLE IAW AMM 27-41-71.  STAB TRIM MOTOR REPLACED AND TESTED SERVICEABLE IAW AMM 27-41-71.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.