# SDR SWAA2018062723128

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 26, 2018
- Submitted: June 27, 2018
- Operation: Air carrier
- Aircraft: [N928WN](https://openairdocs.org/aircraft/N928WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36890
- Aircraft time: 34,516 hours, 20,643 cycles
- System (JASC): [3418 · Stall Warning System](https://openairdocs.org/jasc/3418)
- Part: Sensor
- Part number: 00861FL1
- Part serial: 9014
- Condition: Damaged
- Location: E&E Bay
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2018062723128

## Discrepancy

AIR TURNBACK, ON TAKEOFF HAD TRUE AIR SPEED DISAGREE, FREE DIFFERENTIAL PRESSURE, ANGLE OF ATTACK DISAGREE, ALTIMETER DISAGREED.  FOUND NR 1 ANGLE OF ATTACK SENSOR DAMAGED.  R&R NR 1 ANGLE OF ATTACK SENSOR PER AMM.

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