# SDR USAA20110126SB017

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 25, 2011
- Submitted: January 26, 2011
- Operation: Air carrier
- Aircraft: N440US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24811
- System (JASC): [2797 · Flight Control System Wiring](https://openairdocs.org/jasc/2797)
- Part: Connector
- Condition: Dirty
- Location: Te Flap
- Stage of operation: AP
- How discovered: O
- Nature of condition: O
- Precautionary procedure: L
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA20110126SB017

## Discrepancy

ALB - CREW REPORTED A FLAP ASYMMETRY DURING APPROACH WITH FLAPS 30 SELECTED.  ASYMMETRY OCCURRED AT FLAPS 25.  CONDITION CLEARED ITSELF DURING GO-AROUND.  FLIGHT LANDED WITHOUT INCIDENT AT FLAPS 30.  MAINTENANCE VISUALLY INSPECTED FLAP SYSTEM.  REMOVED, CLEANED AND RE-INSTALLED FLAP POSITION TRANSMITTER CONNECTOR.  OPERATIONALLY CHECKED FLAP SYSTEM PER MM 27-58-01-725-001.  NO DEFECTS NOTED AT THIS TIME.

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