# SDR AALA20110128TUL06

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 28, 2011
- Submitted: February 4, 2011
- Operation: Air carrier
- Aircraft: [N478AA](https://openairdocs.org/aircraft/N478AA), registered now
- 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: 49653
- Aircraft time: 64,825 hours, 33,900 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Shutoff Valve
- Condition: Leaking
- Location: Rudder
- Stage of operation: DE
- How discovered: O
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20110128TUL06

## Discrepancy

MCI - CREW REPORTED RIGHT HYDRAULIC SYSTEM QUANTITY LOSS DURING FLIGHT.  ALTERNATE GEAR EXTENSION USED FOR LANDING.  EMERGENCY DECLARED FLIGHT LANDED MCI WITHOUT INCIDENT.  AIRCRAFT REMOVED FROM SERVICE.  REPLACED RIGHT RUDDER SHUT-OFF VALVE THAT WAS LEAKING.  SYSTEM GROUND CHECK NORMAL OPERATION.

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