# SDR AALA20171011014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 11, 2017
- Submitted: October 16, 2017
- Operation: Air carrier
- Aircraft: [N9625W](https://openairdocs.org/aircraft/N9625W), registered now
- Make and model: Doug MD 83
- Registry model: [Doug MD 83](https://openairdocs.org/model/mcdonnell-douglas-md-83) (OpenAirDocs)
- Aircraft serial: 53595
- Aircraft time: 54,074 hours, 26,680 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Boot
- Condition: Failed
- Location: Rt Acm
- Stage of operation: CL
- How discovered: O
- Nature of condition: E, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20171011014

## Discrepancy

INTERMITTENT FLUTTER IN THE AIR-CONDITIONING AND PRESSURIZATION SYSTEM FOLLOWED BY PRESSURIZATION FLOW LIGHT.  EMERGENCY DECLARED,  RETURNED TO DEPARTURE  LANDING UNEVENTFUL.  REMOVED AND REPLACED TURBINE COOLING OUTLET DUCT AND ADJACENT FORWARD BOOT ON THE RIGHT ACM IAW AMM 21-20-15.  LEAK AND OPS CHECKED GOOD.  AIRCRAFT WAS GROUNDED.

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