# SDR ASAA2021122737011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 27, 2021
- Submitted: December 30, 2021
- Operation: Air carrier
- Aircraft: [N915AK](https://openairdocs.org/aircraft/N915AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44080
- Aircraft time: 1,852 hours, 638 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Transmitter
- Part number: H504C
- Part serial: 64737
- Condition: Faulty
- Location: Aft Blkhd Sta 11
- Part time: 1,852 hours, 638 cycles
- Stage of operation: NR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021122737011

## Discrepancy

ON RECALL, SPEED TRIM FAIL LIGHT ILLUMINATED. LIGHT EXT AFTER RESET. GROUNDED - YES. REMOVED AND REPLACED STAB POSITION SENSOR PER B737-9 AMM 22-11-31. C/W STAB POS SENSOR ADJUSTMENT & TEST PER AMM 22-11-31-820-801. OPS TEST NORMAL.

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