# SDR SWAA2012021601504

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 15, 2012
- Submitted: February 17, 2012
- Operation: Air carrier
- Aircraft: N430WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33659
- Aircraft time: 33,558 hours, 19,357 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Transmission
- Part number: 256A34107
- Part serial: 2543
- Condition: Faulty
- Location: Lt Wing Te Flaps
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2012021601504

## Discrepancy

DECLARED EMERGENCY - ALL FLAPS WOULD NOT EXTEND, BRAKE ENERGY 20.8 LEFT L/E FLAPS NEVER MOVED.  RIGHT LE FLAPS EXTENDED 1/4 OF POSITIONS ONE.  REMOVED AND REPLACED NR 4 T/E FLAP TRANSMISSION AND TORQUE TUBE PER MM.

---
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.