# SDR SWAA990678

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 11, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N311SW
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 23333
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Pin
- Part number: D4536
- Condition: Broken
- Location: Rt Mlg
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA990678

## Discrepancy

AIR TURNBACK DUE TO AN UNSAFE LIGHT, REMAINED ON AT RIGHT MAIN LANDING GEAR AFTER TAKEOFF.  GEAR WAS LOWERED AND 3 GREEN LIGHTS WERE NORMAL.  FOUND BROKEN PIN LOCK AT DISCONNECT D4536, PIN NR 3, WIRE 424-A-R.  REMOVED AND REPLACED PIN PER MM GEAR RETRACTION GOOD.

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