# SDR EIAA9610

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 4, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N471EV](https://openairdocs.org/aircraft/N471EV), registered now
- Make and model: Boeing 747273C
- Aircraft serial: 20651
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Selector Vlv
- Part number: 366103
- Condition: Failed
- Location: Lt Mlg
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/EIAA9610

## Discrepancy

MEL - DURING TAXI NR 1 HYDRAULIC SYSTEM DROPPED SUDDENLY.  NO STEERING CONTROL.  PUMPS SHUT DOWN WITHIN 10 SECONDS.  LEFT BODY GEAR SELECTOR VALVE BODY FOUND SPLIT.  SAME REPLACED PER MM 32-31-03.  CHECKED NR 1 EDP AND ADP CASE DRAIN FILTERS, FOUND CLEAN.  SERVICED NR 1 HYD SYSTEM.  OPERATED NR 1 EDP AND ADP FOR 2 MINUTES AND CYCLED FLIGHT CONTROLS.  RE-CHECKED CASE DRAIN FILTERS, FOUND CLEAN.  BLED BODY GEAR NOSE SLECTOR VALVE AND CHECKED VALVE OPERATION PER MM 32-31-03.  (M)

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