# SDR TWAA0013201

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 22, 2000
- Submitted: August 25, 2000
- Operation: Air carrier
- Aircraft: N904TW
- Make and model: Doug DC-9-82
- Registry model: [Doug DC-9-82](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82) (OpenAirDocs)
- Aircraft serial: 49156
- Aircraft time: 53,986 hours, 27,887 cycles
- System (JASC): [3231 · Landing Gear Door Retract Section](https://openairdocs.org/jasc/3231)
- Part: Control Valve
- Part number: 59164605509
- Condition: Failed
- Location: Nlg
- Stage of operation: LD
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWAA0013201

## Discrepancy

THE NOSE LANDING GEAR DID NOT EXTEND WITH NORMAL GEAR EXTENSION.  MANUAL EXTENSION WAS USED.  FOUND NOSE LANDING GEAR WAS SLOW TO OPERATE.  REPLACED THE NLG RETRACT CYL (P/N 3928137-5001), THE LANDING GEAR CONTROL VALVE (P/N 5916460-5509), AND THE RT HYD RESERVOIR (P/N 5936986-5501).  CHECK-C 3-2-00 STL.

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