# SDR DL76S971108

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 9, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N120DL](https://openairdocs.org/aircraft/N120DL), registered now
- Make and model: Boeing 767332
- Aircraft serial: 23279
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Valve
- Part number: 32143342
- Condition: Inoperative
- Location: Nlg
- Stage of operation: TO
- Nature of condition: E, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL76S971108

## Discrepancy

NOSE GEAR DID NOT RETRACT ON T/O, DURING GEAR RETRACTION A/C SHUDDERED, CENTER HYD SYS EICAS MSG CAME ON, CENTER HYD PUMP LOW PRESS LTS CAME ON.  DEMAND PUMP LOW PRESS LTS CAME ON WHEN GEAR HANDLE WAS PLACED IN DOWN POSITION.  CENTER HYD SYS RETURNED TO NORMAL.  GEAR WENT DOWN AND GREEN.  REPLACED ADP PRSOV VALVE, SYSTEM OPS CHECKS GOOD.

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