# SDR DXTA200400274

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 24, 2004
- Submitted: April 2, 2004
- Operation: Air carrier
- Aircraft: [N373QS](https://openairdocs.org/aircraft/N373QS), registered now
- Make and model: Cessna 560CESSNA
- Aircraft serial: 5600373
- Aircraft time: 7,359 hours, 5,792 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Uplock
- Part number: 25WS4055AD
- Condition: Malfunctioned
- Location: 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/DXTA200400274

## Discrepancy

CLIMBING THROUGH 12,000 FEET AT 280 KNOTS, NOTICED A "THUMPING NOISE" FOLLOWED BY AN INTERMITTENT GEAR UNSAFE LIGHT. SLOWED DOWN BELOW 250 KNOTS THEN THE PROBLEM STOPPED, RE-ACCELERATED IT HAPPENED AGAIN. LOWERED THE GEAR NORMALLY AND DIVERTED TO ACY.  FOUND NOSE GEAR UP-LOCK ROLLER NOT SEATED IN HOOK WHEN GEAR WAS RETRACTED.  ADJUSTED UP-LOCK ASSEMBLY PER CESSNA 560 MM CHAPTER 32-31-05, PERFORMED NUMEROUS LANDING GEAR SWINGS WITH NO PROBLEMS.

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