# SDR CALA9800990

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 7, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N478AC](https://openairdocs.org/aircraft/N478AC), 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: 48063
- Engine: Pwa JT8D217A
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Air Seal
- Part number: 500563501
- Condition: Worn
- Location: Nr 1 Eng Comp
- Stage of operation: CL
- Nature of condition: R
- Precautionary procedure: A, E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA9800990

## Discrepancy

THE NR 1 ENGINE FAILED ACCOMPANIED BY A LOUD BANG DURING CLIMB-OUT OF EWR AT 10,000 FEET.  THE CREW SHUT THE ENGINE DOWN AND THE AIRCRAFT WAS RETURNED TO EWR WHERE IT LANDED WITHOUT INCIDENT.  THE NR 1 ENGINE WAS REMOVED AND REPLACED.  THE ENGINE WAS RUN AND ALL PARAMETERS CHECKED GOOD.  ENGINEERING CONCLUDED THAT THE PRIMARY CAUSE OF ENGINE FAILURE WAS DUE TO A WORN SECOND STAGE INNER AIR SEAL.

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