# SDR AALA20160520006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2016
- Submitted: May 20, 2016
- Operation: Air carrier
- Aircraft: N381AN
- Make and model: Boeing 767323
- Aircraft serial: 25450
- Aircraft time: 92,871 hours, 14,775 cycles
- Engine: Ge CF680C2B6
- Engine time: 83,162 hours, 13,199 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Part number: CF680C2B6
- Part serial: 695571
- Condition: Leaking
- Location: Nr 1
- Part time: 83,162 hours, 13,199 cycles
- 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/AALA20160520006

## Discrepancy

DURING CRUISE, THE NR 1 ENGINE OIL QTY DECREASED.  BORESCOPE OF THE COMPRESSOR REAR FRAME INDICATED COKING BUT WAS UNABLE TO CONFIRM SOURCE.  THE AIRCRAFT WAS GROUNDED.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.