# SDR AALA202305303646

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 28, 2023
- Submitted: May 30, 2023
- Operation: Air carrier
- Aircraft: [N309PC](https://openairdocs.org/aircraft/N309PC), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31258
- Aircraft time: 18,012 hours, 7,538 cycles
- System (JASC): [2751 · Trailing Flap Position Indicating System](https://openairdocs.org/jasc/2751)
- Part: Fseu
- Part number: 285A12002
- Condition: Unserviceable
- Location: Zone 100 - Fuse
- Stage of operation: AP
- How discovered: V
- Nature of condition: J
- Precautionary procedure: L
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202305303646

## Discrepancy

AIRCRAFT WAS GROUNDED: FLAPS STUCK AT 5 Ï¿½ 10 DEGREES ON APPROACH TO JFK. USED ALTERNATE FLAPS OVER 10 AND HAD FLAP ASYMMETRY. EMERGENCY DECLARED; FLIGHT LANDED SAFELY. MAINTENANCE REPLACED LEFT HAND FLAP POSITION TRANSMITTER T427 PER AMM 27-58-01 (AALA202305302809). REPLACED FLAP LEVER POSITION SENSOR T538 PER AMM 27-51-06 (AALA202305300669). REPLACED FLAP / SLAT ELECTRONICS UNIT M01746 PER AMM 27-51-01 (AALA202305303646).

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.