# SDR ASAA2017031420174

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 14, 2017
- Submitted: March 16, 2017
- Operation: Air carrier
- Aircraft: [N557AS](https://openairdocs.org/aircraft/N557AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35176
- Aircraft time: 41,149 hours, 12,110 cycles
- System (JASC): [2741 · Stabilizer Position Indicating](https://openairdocs.org/jasc/2741)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- 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/ASAA2017031420174

## Discrepancy

STAB OUT OF TRIM LIGHT ILLUMINATED DURING CLIMB. AUTO-PILOT TRIM NOT WORKING PROPERLY. MAIN ELECTRIC TRIM WORKS NORMALLY. GROUNDED - YES. PERFORMED GVI ON STABILIZER JACK SCREW, NO FOREIGN OBJECT FOUND. PERFORMED SPEED/STAB TRIM TEST GROUP 32 THREE TIMES, NO DEFECTS NOTED. PERFORMED LAND VERIFY TEST, REF AMM 22-11-00/201 GROUP 49, THREE TIMES, NO DEFECTS NOTED. AIRCRAFT REMAINS AUTOLAND/HGS QUALIFIED. STATUS SCREW REFLECTS SAME.

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