# SDR Q5QA20260421002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 21, 2026
- Submitted: April 23, 2026
- Operation: Air carrier
- Aircraft: [N88QD](https://openairdocs.org/aircraft/N88QD), registered now
- Make and model: Pilats PC1245
- Aircraft serial: 478
- Aircraft time: 15,461 hours, 16,499 cycles
- System (JASC): [3418 · Stall Warning System](https://openairdocs.org/jasc/3418)
- Part: Aoa
- Part number: 0012AC13
- Part serial: 1893
- Condition: Failed
- Location: Zone 500
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/Q5QA20260421002

## Discrepancy

THE PILOT REPORTED THAT AFTER DEPARTURE HE RECEIVED A SLOW SPEED INDICATION WITH AN ACCOMPANYING STICK SHAKER AND ORAL WARNING EVEN THOUGH HE WAS WELL ABOVE THE STALL SPEED FOR HIS CONFIGURATION, THE PILOT RETURNED THE AIRCRAFT TO HIS DEPARTURE POINT AND LANDED THE AIRCRAFT WITHOUT INCIDENT.  POST THE AIRCRAFT’S LANDING MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND THE LEFT ANGLE OF ATTACK (AOA) PROBE IN A FAILED STATE. THE FAILED AOA PROBE WAS REPLACED WITH A SERVICEABLE AOA PROBE, AND THE AIRCRAFT WAS RETURNED TO SERVICE.

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