# SDR A6WA201141048

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 27, 2011
- Submitted: December 9, 2011
- Operation: Air carrier
- Aircraft: [N417AW](https://openairdocs.org/aircraft/N417AW), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7610
- Aircraft time: 23,126 hours, 21,906 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Selector Valve
- Part number: 750006000
- Part serial: 1794
- Condition: Failed
- Location: Nlg
- Part time: 23,126 hours, 21,906 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/A6WA201141048

## Discrepancy

DURING GEAR RETRACTION, LOUD CLUNKING NOISE FROM NLG AREA, NOISE WENT AWAY AFTER GEAR AND FLAPS RETRACTED.  NOISE RETURNED AGAIN WHEN FLAPS SELECTED TO 8 DEGREES.  R & R NLG DOOR SELECTOR VALVE REF AMM 32-22-20.  OPS AND LEAK CK GOOD.  SN OFF 1794, SN ON 1178, PC 32-20-152 CLM.

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