# SDR KNN2011F00000

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 2011
- Submitted: July 22, 2011
- Operation: Air carrier
- Aircraft: N773AS
- Make and model: Boeing 737-4Q8
- Registry model: [Boeing 737-4Q8](https://openairdocs.org/model/boeing-737-4q8) (OpenAirDocs)
- Aircraft serial: 25106
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Proximity Switch
- Part number: 189915
- Condition: Out Of Tolerance
- Location: Rt Mlg
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KNN2011F00000

## Discrepancy

AFTER T/O THE LANDING GEAR WOULD NOT GO UP.  GEAR HANDLE WOULD NOT PASS THROUGH THE "OFF" POSITION.  ACFT AIR RETURNED AND MX T/S FOUND GAP ON MLG SAFETY SENSOR (PROX SWITCH) TO TARGET EXCEEDING TOLERANCE.

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