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When the right engine oil quantity continually decreased to only 25% the flight crew of a B737 elected to declare and emergency and divert to a nearby airport.
| Attributes | |
| ACN | 1153539 |
| Time | |
| Date | 201402 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Lubrication Oil |
| Person 1 | |
| Function | Pilot Flying First Officer |
| Experience | Flight Crew Last 90 Days 100 Flight Crew Total 11500 Flight Crew Type 750 |
| Person 2 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
While enroute at FL360 we noticed the number 2 engine oil quantity was at 40%. As we monitored it; it continued to decrease. The captain initiated a dialogue with dispatch and maintenance and all agreed to keep monitoring it and let them know if we diverted. The oil quantity decreased to 25% and we decided to declare an emergency and divert. At this point we were coming up on the front range and the weather in [our divert airport] was clear. We advised the flight attendants and passengers and landed without incident. We could not find a checklist for low oil quantity; only for low oil pressure which we never got (but probably would have if we continued). We did not shut the engine down.
Original NASA ASRS Text
Title: When the right engine oil quantity continually decreased to only 25% the flight crew of a B737 elected to declare and emergency and divert to a nearby airport.
Narrative: While enroute at FL360 we noticed the Number 2 Engine oil quantity was at 40%. As we monitored it; it continued to decrease. The Captain initiated a dialogue with Dispatch and Maintenance and all agreed to keep monitoring it and let them know if we diverted. The oil quantity decreased to 25% and we decided to declare an emergency and divert. At this point we were coming up on the front range and the weather in [our divert airport] was clear. We advised the flight attendants and passengers and landed without incident. We could not find a checklist for low oil quantity; only for low oil pressure which we never got (but probably would have if we continued). We did not shut the engine down.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.