# SDR WRNA200700063

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 20, 2007
- Submitted: December 21, 2007
- Operation: Air carrier
- Aircraft: [N526UP](https://openairdocs.org/aircraft/N526UP), registered now
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21937
- Aircraft time: 92,913 hours, 17,397 cycles
- System (JASC): [3418 · Stall Warning System](https://openairdocs.org/jasc/3418)
- Part: Sensor
- Part number: 2566A30A
- Part serial: 26628
- Condition: No Test
- Location: Aoa
- Stage of operation: TO
- How discovered: C
- Nature of condition: L
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WRNA200700063

## Discrepancy

DURING TAKEOFF, AT 80 KNOTS, CREW RECEIVED A STALL WARNING, TAKEOFF WAS ABORTED.  AOA FAILED TEST IAW B747 MM 27-32-00 PG 507.  REPLACED AOA SENSOR 
IAW 747 MM 27-32-01 PG 102.  SYSTEM TEST GOOD IAW 747 MM 27-32-00 PG 507.  AIRCRAFT RELEASED FOR SERVICE.

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