# SDR AALA20161231011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 31, 2016
- Submitted: January 4, 2017
- Operation: Air carrier
- Aircraft: [N964AN](https://openairdocs.org/aircraft/N964AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 30093
- Aircraft time: 47,988 hours, 19,671 cycles
- System (JASC): [2740 · Stabilizer Control System](https://openairdocs.org/jasc/2740)
- Part: Switch
- Part number: 251A44304
- Part serial: 36572
- Condition: Faulty
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20161231011

## Discrepancy

AIRCRAFT WAS GROUNDED. EMERGENCY DECLARED. DFW-SJC FLIGHT RETURNED TO DFW. LEVELED AT 260 STABILIZER OUT OF TRIM ILLUMINATED. TRIM RESPONDED NORMALLY TO TRIM SWITCH AFTER DISCONNECTING AUTOPILOT AND AUTO-THROTTLE. REMOVED AND REPLACED FIRST OFFICER COLUMN CUTOUT SWITCH IAW AMM 27-41-51. OPERATIONAL CHECK GOOD.

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