# SDR KCSA20120806009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 6, 2012
- Submitted: August 9, 2012
- Operation: Air carrier
- Aircraft: [N708CK](https://openairdocs.org/aircraft/N708CK), registered now
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21937
- Aircraft time: 102,169 hours, 19,367 cycles
- Engine: Pwa JT9D7Q
- Engine time: 51,556 hours, 10,794 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Malfunctioned
- Location: Nr 3
- Stage of operation: CL
- How discovered: O
- Nature of condition: E
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KCSA20120806009

## Discrepancy

CLIMBING THRU FL 26.0 NR 3 ENGINE EXPERIENCED A LOUD BANG FOLLOWED BY VIBRATION.  ENGINE WAS SHUTDOWN IAW QRH PROCEDURES, NO FIRE LIGHT ILLUMINATED.  AFTER SHUTDOWN, OIL PRESSURE READS 6 PSI AND N2 RPM 21%. TOTAL FLIGHT TIME ENGINE WINDMILLED 58 MINUTES.  TIME OFF FAILURE 2205Z.  MAX EGT OBSERVED WAS 818°C FOR A 25 SECOND DURATION.  UPON PERFORMING QRH PROCEDURE IN SHUTTING DOWN ENGINE, EGT RETURNED BACK TO NORMAL LIMITS.

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