# SDR DXTA2016012400171

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 28, 2016
- Submitted: January 29, 2016
- Operation: Air carrier
- Aircraft: [N565QS](https://openairdocs.org/aircraft/N565QS), registered now
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605818
- Aircraft time: 6,008 hours, 4,739 cycles
- System (JASC): [3233 · Landing Gear Actuator](https://openairdocs.org/jasc/3233)
- Part: Actuator
- Part number: 55275043
- Part serial: 4170
- Condition: Corroded
- Location: Nlg
- Part time: 6,010 hours, 4,740 cycles
- 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/DXTA2016012400171

## Discrepancy

NOSE GEAR WOULD NOT STAY RETRACTED.  JACKED ACFT & CHECKED DIMENSION ON NOSE STRUT.  SWING GEAR SEVERAL TIMES COULD NOT DUPLICATE AT THIS TIME.  INSP NLG UPLOCK ASSY & FOUND TO BE BINDING.  REMOVED UPLOCK ACTUATOR & FOUND ALL COMPONENTS ATTACHED TO ACTUATOR SHAFT ARE CORRODED.  BOSS FOR CLEVIS PIN ON ACTUATOR SHAFT IS ALSO CORRODED.  R&R SN 4170, ACTUATOR, SN 4824, WITH NEW PARTS IAW MM CHAPTER 32-30-05.  INSTALLED ACTUATOR & COMPLIED WITH ALL FUNCTIONAL & LEAK CHECKS.  ALL CHECKED GOOD.  VERIFIED INSTALLATION OF THE UPLOCK HOOK & OPERATION, GEAR SWING WITH FREE FALL & BLOW DOWN.  RESET GEAR & BLED, SERVICED NITROGEN & SAFETIED EMER GEAR CABLE.  ALL OPS & LEAK CHECKS GOOD.

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