# SDR ASMF20190613010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 2019
- Submitted: June 13, 2019
- Operation: Air carrier
- Aircraft: [N958AM](https://openairdocs.org/aircraft/N958AM), registered now
- Make and model: Boeing 737852
- Aircraft serial: 39958
- Aircraft time: 52,831 hours, 26,567 cycles
- System (JASC): [2741 · Stabilizer Position Indicating](https://openairdocs.org/jasc/2741)
- Part: Trim Motor
- Part number: 6355C000102
- Part serial: 02569
- Condition: Failed
- Location: Stab Trim
- Part time: 52,831 hours, 26,567 cycles
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASMF20190613010

## Discrepancy

DURING TRANSIT CHECK, IT WAS DETECTED THE STAB TRIM WITHOUT MOVEMENT TO PERFORM THE ADJUSTMENT. MAINTENANCE PERSONNEL PERFORMED THE CIRCUIT BREAKERS RESET IAW AMM 27-41-00, CONTINUING THE FAILURE; THE BITE DFCS WAS PERFORMED IAW  FIM 22-11 TASK 801, SHOWING THE FAILURE CODE 22-11173 AND THE ENERGY SYSTEM WAS RESEATED IAW AMM 24-00-00 AND AMM 27-41-00, NO CONFIRMING FAILURE. AT MEX, AS A PRECAUTIONARY ACTION, THE STABILIZER TRIM MOTOR WAS REPLACED IAW AMM TASK 27-41-71-000-801 AND STABILIZER TRIM MOTOR TEST WAS PERFORMED IAW AMM 27-41-71-700-801, TESTED CORRECT.

---
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.