# SDR AALA20150317026

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 17, 2015
- Submitted: March 20, 2015
- Operation: Air carrier
- Aircraft: [N553AA](https://openairdocs.org/aircraft/N553AA), 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: 53083
- Aircraft time: 68,578 hours, 35,852 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Control Valve
- Condition: Faulted
- Location: Air Flow
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20150317026

## Discrepancy

RT PACK ON PLACARD, PRESSURIZATION FLOW LIGHT ILLUMINATED.  NECESSARY TO ADVANCE LT THROTTLE TO 1.3 EPR TO KEEP LIGHT OUT.  RETURNED TO FIELD.  NO EMERGENCY DECLARED, LANDING UNEVENTFUL.  R & R THE LEFT FLOW CONTROL VALVE IAW AMM 21-31-02.

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