# SDR AALA20150214002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 13, 2015
- Submitted: March 4, 2015
- Operation: Air carrier
- Aircraft: [N847NN](https://openairdocs.org/aircraft/N847NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29575
- Aircraft time: 14,778 hours, 5,831 cycles
- System (JASC): [2751 · Trailing Flap Position Indicating System](https://openairdocs.org/jasc/2751)
- Part: Transmitter
- Part number: 18173812
- Condition: Failed
- Location: Te Flaps
- Stage of operation: DE
- How discovered: O
- Nature of condition: F, J
- Precautionary procedure: L
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20150214002

## Discrepancy

FLAPS EXTENDED NORMAL TO 25 FOR LANDING, BUT WHEN 30 WAS SELECTED, FLAPS LOCKED OUT AT 25.  EXECUTED A GO AROUND & FLAPS REMAINED AT 25 EVEN THOUGH 15 WAS SELECTED.  EMERGENCY DECLARED, LANDING UNEVENTFUL.   A FLAP 25 LANDING WAS ACCOMPLISHED.  FLAPS RETRACTED NORMAL TO ZERO.  MAINTENANCE REPLACED RIGHT HAND FLAP POSITION TRANSMITTER IAW AMM 27-58-01.

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