# SDR NOCA09412

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 21, 2012
- Submitted: July 23, 2012
- Operation: Air carrier
- Aircraft: [N764NA](https://openairdocs.org/aircraft/N764NA), registered now
- Make and model: Boeing 767328
- Aircraft serial: 27135
- System (JASC): [3418 · Stall Warning System](https://openairdocs.org/jasc/3418)
- Part: Computer
- Part number: 285T110419
- Part serial: D02433
- Condition: Faulty
- Location: Stall Warning
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/NOCA09412

## Discrepancy

SECOND AIR TURNBACK:  CAPT AMBER BAND FLUCTUATES UP AND DOWN INTERMITTENLY THROUGH WHOLE RANGE ON ADI.  PERFORMED PSEU BITE PER AMM 32-09-04, FSEU BITE NO FAULT FOUND.  REF SERVICE LETTER 767-SL-27-125 REMOVED AND REPLACED LEFT SWC IAW AMM 27-32-01, OPS CHECK OK.  ALSO REMOVED LEFT AOA SENSOR P/N 861CAB S/N 1088.

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