# SDR SWIA202504070005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2025
- Submitted: April 7, 2025
- Operation: Air carrier
- Aircraft: [N956SW](https://openairdocs.org/aircraft/N956SW), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7825
- Aircraft time: 49,218 hours, 42,321 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Uplock Hook
- Condition: Fod
- Location: Zone 700
- 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/SWIA202504070005

## Discrepancy

GEAR DISAGREE WARNING ON GEAR RETRACTION AFTER TAKEOFF, LEFT MAIN INDICATING RED. WENT AWAY WITH QRH PROCEDURE, GEAR REMAINED DOWN AND LOCKED ON LANDING AT SFO. (FLIGHT 5951 - FILED CLOSED)REFERENCED FAULT ISOLATION MANUAL 32-60-07, UPON TROUBLESHOOTING FOUND FAULT CODE S20 LGUPLK STORED IN PSEU. CLEANED DEBRIS FROM UPLOCK HOOK ASSEMBLY PROX SENSOR TARGET IN REFERENCE TO AMM 32-61-05. NO OTHER DEFECTS NOTED IN LANDING GEAR RETRACTION SYSTEM. RESTORED AIRCRAFT TO NORMAL CONFIGURATION, SYSTEM OPS CHECKS GOOD.

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