# SDR UIEA200500078

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2005
- Submitted: June 27, 2005
- Operation: Air carrier
- Aircraft: N534MC
- Make and model: Boeing 747-2F6B
- Registry model: [Boeing 747-2F6B](https://openairdocs.org/model/boeing-747-2f6b) (OpenAirDocs)
- Aircraft serial: 21832
- Engine: Ge CF650E2
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Servo Valve
- Part number: 87014
- Condition: Leaking
- Location: Nr 2 Hyd System
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA200500078

## Discrepancy

DURING CRUISE, NR 2 HYD QUANTITY WENT FROM 6.1 TO 2.2, 5 HOURS INTO FLIGHT.  SUSPECT HYD LEAK.  RAN PROCEDURES TO SHUTDOWN HYD SYSTEM NR 2 IAW FLIGHT HAND BOOK.  REPLACED LOWER RUDDER POWER PACKAGE SERVO VALVE IAW MM.  PRESSURIZED HYD SYSTEM IAW MM.  LEAD CHECK OK, SN OFF 1895 (K)

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