# SDR AALA201905049001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 3, 2019
- Submitted: May 6, 2019
- Operation: Air carrier
- Aircraft: [N800NN](https://openairdocs.org/aircraft/N800NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29564
- Aircraft time: 31,297 hours, 12,469 cycles
- System (JASC): [2740 · Stabilizer Control System](https://openairdocs.org/jasc/2740)
- Part: Relay
- Condition: Failed
- Location: Stab Trim
- Stage of operation: CL
- How discovered: O
- Nature of condition: F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201905049001

## Discrepancy

AIRCRAFT WAS GROUNDED: PILOT DECLARED EMERGENCY ON ACCOUNT OF STABILIZER TRIM FAILURE AFTER TAKEOFF. STAB TRIM CB POPPED. MAINTENANCE TROUBLESHOT IAW WDM 27-41-12 AND FOUND THE STAB TRIM CONTROL RELAY BAD. REMOVED AND REPLACED RELAY IAW WDM 27-41-12. OPS CHECK GOOD. RESET C/B ALL CHECKS NORMAL.

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