# SDR P5CA9801478

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 20, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N858FT](https://openairdocs.org/aircraft/N858FT), registered now
- Make and model: Boeing 747123
- Aircraft serial: 20109
- System (JASC): [2710 · Aileron Control System](https://openairdocs.org/jasc/2710)
- Part: Valve
- Part number: 60B002581
- Condition: Leaking
- Location: Rt Wing
- Stage of operation: CR
- Nature of condition: K, J
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA9801478

## Discrepancy

INFLIGHT NR 3 HYDRAULIC QUANTITY DECREASED AT 1 GAL PER HOUR RATE.  DEPRESSURIZED SYSTEM, FLUID LOSS STOPPED.  SYSTEM DEPRESSURIZED UNTIL DESCENT.  TROUBLESHOOTING CONFIRMED LEAK IN RIGHT HAND FLIGHT CONTROL SHUTOFF VALVE.  VALVE REPLACED IAW BMM 27-13-01 PG 401, SYSTEM TESTED SATISFACTORY IAW BMM 27-13-01 PG 501.

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