# SDR AALA20151106013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 6, 2015
- Submitted: November 13, 2015
- Operation: Air carrier
- Aircraft: [N975AN](https://openairdocs.org/aircraft/N975AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29549
- Aircraft time: 43,046 hours, 17,504 cycles
- System (JASC): [2740 · Stabilizer Control System](https://openairdocs.org/jasc/2740)
- Part: Module
- Part number: 251A44304
- Part serial: A4546
- Condition: Faulty
- Location: Zone 300
- 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/AALA20151106013

## Discrepancy

AIR INTERRUPT, EMER DECLARED, LANDING UNEVENTFUL & ACFT NOT OVERWEIGHT.  DURING CLIMB, STABILIZER OUT OF TRIM & SPEED TRIM FAIL LIGHTS ILLUMINATED.  FOUND COLUMN SWITCHING MODULE M1201 AT FAULT.  R & R MODULE & TESTED OK IAW AMM 27-41-51.  STABILIZER & SPEED TRIM SYS TESTED OKAY IAW AMM 22-11-00.

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