# SDR AALA2019080869022

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 2019
- Submitted: August 16, 2019
- Operation: Air carrier
- Aircraft: [N943NN](https://openairdocs.org/aircraft/N943NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31177
- Aircraft time: 18,582 hours, 6,872 cycles
- System (JASC): [2751 · Trailing Flap Position Indicating System](https://openairdocs.org/jasc/2751)
- Part: Sensor
- Part serial: 21802
- Condition: Deteriorated
- Location: Rt Wing
- Stage of operation: AP
- How discovered: V
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA2019080869022

## Discrepancy

AIRCRAFT WAS GROUNDED: PILOT REPORTS FLAPS WOULD NOT EXTEND ON DESCENT. EMERGENCY WAS DECLARED. MAINTENANCE FOUND #5 SKEW SENSOR AND CONNECTOR DETERIORATED BY SKYDROL. MAINTENANCE REMOVED AND REPLACED CANNON PLUG D11822P FOR SKEW SENSOR #5 IAW SWPM 20-61-11 AND REMOVED & REPLACED #5 SKEW SENSOR IAW AMM 27-59-01.

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