# SDR AALA202008049001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 31, 2020
- Submitted: August 4, 2020
- Operation: Air carrier
- Aircraft: [N976AN](https://openairdocs.org/aircraft/N976AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 30099
- Aircraft time: 56,875 hours, 23,314 cycles
- System (JASC): [3418 · Stall Warning System](https://openairdocs.org/jasc/3418)
- Part: Aoa
- Part number: 0861FL1
- Part serial: 1975
- Condition: Defective
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202008049001

## Discrepancy

AIRCRAFT WAS GROUNDED: SPEED LIMIT ILLUMINATED ON CAPT. PFD FOR A FEW SEC. MULTIPLE TIMES EVERY MINUTE.  THEN AUTO PILOT DISENGAGES FMA SHOWS CWS P MIN MANUVER SPEED YELLOW BAR DISPARES DURING SPD LIM.REPLACED LEFT AOA SENSOR PER AMM 3421-05.

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