# SDR SAJF201206141017

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 30, 2012
- Submitted: June 14, 2012
- Operation: Air carrier
- Aircraft: N18721
- Make and model: Boeing 747409F
- Aircraft serial: 33738
- Aircraft time: 31,062 hours, 5,555 cycles
- Engine: Ge CF680C2B1F
- Engine time: 28,288 hours, 4,728 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Failed
- Location: Nr 4
- Stage of operation: CL
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SAJF201206141017

## Discrepancy

(B-18721) DURING CLIMB, EICAS MESSAGE "ENG 4 OIL PRESS" WITH OIL PRESSURE INDICATING 4 PSI, FOLLOWED QRH,  ENGINE 4 SET TO IDLE, SHORTLY NOISE AND VIBRATION, THEN N1,N2 DROP, EICAS MESSAGE "ENG 4 FAIL", FOLLOW QRH ENG SHUTDOWN.  GROUND CHECK FOUND METAL CHIPS IN TAILPIPE.  N2 ROTOR WAS SEIZED AND UNABLE TO BE ROTATED.

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