# SDR WRNA200700045

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2007
- Submitted: July 24, 2007
- Operation: Air carrier
- Aircraft: [N526UP](https://openairdocs.org/aircraft/N526UP), registered now
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21937
- Aircraft time: 91,234 hours, 17,135 cycles
- System (JASC): [2751 · Trailing Flap Position Indicating System](https://openairdocs.org/jasc/2751)
- Part: Transmitter
- Part number: 18158612
- Part serial: 0206
- Condition: Malfunctioned
- Location: T/E Flap
- Stage of operation: AP
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WRNA200700045

## Discrepancy

ON APPROACH TO ANC, OUTBOARD TRAILING EDGE FLAP HAD AN ASYMMETRICAL TRIP AND NR 2 LT LEADING EDGE FLAP DID NOT EXTEND.  CONTINUED APPROACH AND MADE A SAFE LANDING.  REPLACED FLAP POSITION TRANSMITTER IAW MM 27-58-01 PAGE 401, SYSTEM CHECKED NORMAL AND LEADING EDGE FLAPS OPERATED PROPERLY.  AIRCRAFT RELEASED TO SERVICE.

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