# SDR ARWA20080505

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 18, 2008
- Submitted: May 28, 2008
- Operation: Air carrier
- Aircraft: N450ML
- Make and model: Doug DC-10-30F
- Registry model: [Doug DC-10-30F](https://openairdocs.org/model/mcdonnell-douglas-dc-10-30f) (OpenAirDocs)
- Aircraft serial: 47831
- Aircraft time: 98,662 hours, 17,963 cycles
- System (JASC): [7830 · Engine Thrust Reverser](https://openairdocs.org/jasc/7830)
- Part: Shutoff Valve
- Part number: 9791861
- Part serial: AEX10039
- Condition: Faulty
- Location: Thrust Reverser
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ARWA20080505

## Discrepancy

NR 1 REVERSER PRESSURE LIGHT CAME ON DURING CRUISE, WENT OUT WHEN THROTTLES RETARDED FOR DESCENT.  AS PER TAFI M/M 78-30-00 FOUND OVERPRESSURE INLET SHUTOFF VALVE BAD.  REMOVED AND REPLACED VALVE IN ACCORDANCE WITH M/M 78-31-09, CHECK SYSTEMS NORMAL.

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