# SDR AALA20120419006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2012
- Submitted: May 2, 2012
- Operation: Air carrier
- Aircraft: N7542A
- 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: 49996
- Aircraft time: 61,870 hours, 31,880 cycles
- System (JASC): [7220 · Turbine Engine Air Inlet Section](https://openairdocs.org/jasc/7220)
- Part: Bullet
- Condition: Inoperative
- Location: Nr 1 Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20120419006

## Discrepancy

DFW - CREW REPORTED SIGNFICANT ENGINE PRESSURE RATIO SPLIT THAT BECAME WORSE AS ALTITUDE INCREASED.  EMERGENCY DECLARED FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT.  AIRCRAFT REMOVED FROM SERVICE.  REPLACED NUMBER 1 ENGINE PT2 BULLET.  SYSTEM GROUND CHECK NORMAL OPERATION.

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