# SDR QXEA2017050800348

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 7, 2017
- Submitted: May 8, 2017
- Operation: Air carrier
- Aircraft: N400QX
- Make and model: Bombdr DHC8402
- Aircraft serial: 4030
- Aircraft time: 37,955 hours, 39,842 cycles
- System (JASC): [3233 · Landing Gear Actuator](https://openairdocs.org/jasc/3233)
- Part: Actuator
- Part number: 474001
- Part serial: MAL0039
- Condition: Failed
- Location: Nlg Uplock
- Part time: 31,329 hours, 30,083 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/QXEA2017050800348

## Discrepancy

ON DEPARTURE,  THE NOSE GEAR FAILED TO RETRACT AND STAYED EXTENDED FOR APPROX 2 MIN. THE NOSE GEAR RETRACTED ON ITS OWN WITHOUT FURTHER INPUT AND EXTENDED NORMALLY UPON LANDING. DIVERTED,  LANDING UNEVENTFUL. BYPASSING DETECTED USING ULTRAPROBE BY PRESSURIZING & CHECKING FOR HEAT & NOISE. REMOVED AND REPLACED NLG LOCK ACTUATOR IAW AMM TASK 32-31-51-000-801, AND TASK 32-31-51-400-801. OPS CHECKED GOOD AND LEAK CHECKED GOOD.

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