# SDR UALA2011051302380

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 11, 2011
- Submitted: May 16, 2011
- Operation: Air carrier
- Aircraft: N546UA
- Make and model: Boeing 757222
- Aircraft serial: 25367
- Aircraft time: 73,029 hours, 21,258 cycles
- Engine: Pwa PW2037
- System (JASC): [2741 · Stabilizer Position Indicating](https://openairdocs.org/jasc/2741)
- Part: Module
- Part number: 8000000016
- Condition: Faulty
- Location: Stabilizer
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011051302380

## Discrepancy

EICAS MESSAGE 'STAB TRIM' DISPLAYED AND STAB TRIM LIGHT ON. STABILIZER TRIM OPERATES AT HALF SPEED.  CREW COMMENTS: STAB TRIM EICAS AND OVERHEAD LIGHT CAME ON IN CLIMB OUT. REPLACED STAB TRIM LIMIT AND POSITION TRANSMITTER MODULE. ALL TESTS OPS CK OKAY.

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