# SDR SWAA120001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 2, 2012
- Submitted: January 4, 2012
- Operation: Air carrier
- Aircraft: N603SW
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 27954
- Aircraft time: 55,138 hours, 45,233 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Switch
- Part number: MS253831
- Condition: Faulty
- Location: Mlg Ww
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA120001

## Discrepancy

DIVERSION -- AFTER T/O LANDING GEAR SELECTED UP, CONSTANT GEAR WARN HORN.  WHEN GEAR FELT FULLY RETRACTED STILL HAD 3 RED GEAR LIGHTS WITH CONSTANT HORN.  RESELECTED GEAR DOWN 3 GREENS DOWN LOCKED.  RETRACTED GEAR, NO HORN 3 REDS WITH GEAR UP.  REMOVED AND REPLACED S-78 LANDING GEAR LEVER SWITCH AND NR 2 AUTO THROTTLE PACK ASSY SWITCH PER MM.

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