# SDR AALA20170123016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 2017
- Submitted: January 23, 2017
- Operation: Air carrier
- Aircraft: N390AA
- Make and model: Boeing 767323
- Aircraft serial: 27450
- Aircraft time: 89,495 hours, 14,306 cycles
- Engine: Ge CF680C2B6
- Engine time: 49,447 hours, 8,091 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Faulty
- Location: Nr 1
- Stage of operation: CR
- How discovered: O
- Nature of condition: K
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20170123016

## Discrepancy

AIRCRAFT WAS GROUNDED. FLIGHT DIVERTED. EMERGENCY DECLARED. AT APPROXIMATELY 3 HOURS AND 35 MINUTES INTO FLIGHT NR 1 ENGINE OIL QUANTITY SHOWED 0 FOLLOWED BY DECREASING OIL PRESSURE.  ENGINEERING REPORTED BORESCOPE OF THE COMPRESSOR REAR FRAME INDICATED COKING BUT WAS UNABLE TO CONFIRM SOURCE.

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