# SDR UIA9210

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 23, 2003
- Submitted: November 24, 2003
- Operation: Air carrier
- Aircraft: N17922
- Make and model: Doug MD-90-30
- Registry model: [Doug MD-90-30](https://openairdocs.org/model/mcdonnell-douglas-md-90-30) (OpenAirDocs)
- Aircraft serial: 53601
- Aircraft time: 7,897 hours, 8,647 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Control Valve
- Part number: 396582232249961
- Part serial: 315348
- Condition: Malfunctioned
- Location: Pack Flow
- Stage of operation: CL
- How discovered: C
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIA9210

## Discrepancy

IN AIR 8000 FT CABIN PRESSURE (FLOW) LIT,BOTH PACK OFF.  A/C AIR TURNED BACK.  IAW AMM 21-51-04 REPLACED R/L FLOW CONTROL VALVE AND GRD ENG RUN-UP FUNCTION TEST NORMAL.

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