# SDR AALA20170104027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 4, 2017
- Submitted: January 9, 2017
- Operation: Air carrier
- Aircraft: [N850NN](https://openairdocs.org/aircraft/N850NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 40580
- Aircraft time: 20,716 hours, 8,069 cycles
- System (JASC): [2751 · Trailing Flap Position Indicating System](https://openairdocs.org/jasc/2751)
- Part: Transmitter
- Part number: 18173812
- Part serial: 2602
- Condition: Faulty
- Location: Te Flaps
- Stage of operation: DE
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20170104027

## Discrepancy

EMERGENCY DECLARED. LANDING UNEVENTFUL. WHEN LOWERING FLAPS, THE FLAP INDICATOR SHOWED A FLAP SPLIT AND STOPPED. ALTERNATE FLAP SELECTION UTILIZED AND FLAPS CONTINUED TO 15 DEGREES SELECTED. REMOVED AND REPLACED RIGHT FLAP POSITION TRANSMITTER ASSEMBLY IAW AMM 27-58-01. OPERATIONAL CHECK GOOD.  AIRCRAFT WAS GROUNDED.

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