# SDR 2PIA2026FA0000151

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 2, 2026
- Submitted: March 3, 2026
- Operation: Air carrier
- Aircraft: [N377PL](https://openairdocs.org/aircraft/N377PL), registered now
- Make and model: Cessna 525B
- Registry model: [Cessna 525B](https://openairdocs.org/model/cessna-525b) (OpenAirDocs)
- Aircraft serial: 525B0312
- Aircraft time: 5,874 hours, 4,874 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Uplock
- Condition: Cracked
- Location: Zone 700
- Stage of operation: CL
- How discovered: V
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2PIA2026FA0000151

## Discrepancy

ABOUT 12 MINUTES AFTER TAKEOFF AND DURING LEVEL-OFF AT 6,000 FEET WHILE ACCELERATING THROUGH 240 KIAS WITH GEAR SELECTED UP AND FULLY RETRACTED, A BIG THUMP WAS HEARD AND THE GEAR UNSAFE LIGHT ILLUMINATED. IT SEEMS THAT THE LEFT MAIN GEAR CAME LOOSE INFLIGHT. WE PROCEEDED TO RUN THE APPROPRIATE CHECKLIST AND LANDED SAFELY IN MMSD.     - TECHNICIANS NOTED THE UPLOCK WAS CRACKED.

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