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An A319 flight crew reported that they declared an emergency and returned to the departure airport because the oil quantity decreased to 2.2 quarts after takeoff. They did not remember until later that the oil quantity gauge was MEL'ed inoperative.
| Attributes | |
| ACN | 917263 |
| Time | |
| Date | 201011 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | A319 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Component | |
| Aircraft Component | Oil Contents Indication |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 220 Flight Crew Total 19982 Flight Crew Type 2400 |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Experience | Flight Crew Last 90 Days 240 Flight Crew Total 17500 Flight Crew Type 3421 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
Watched #2 oil quantity drop from 19 quarts to 2.2. Stopped climb; looked in flight manual for guidance and sent ACARS to dispatch. Oil press was lower than #1 and temperature was slightly elevated. We elected to return to the departure airport. It wasn't until we talked to the mechanics that I remembered the oil quantity #2 was deferred inoperative. Dispatch didn't figure it out until we were in final. My expectation during preflight was the readings were to be XXX and not actual numbers. I know what I read it didn't get recalled in the moment. Better would have been to disconnect the canon plug. The return was uneventful; run just as we were trained. I got dirty early and burned off as much fuel as possible to land at maximum landing weight. Reviewed over weight checklist; approach and go-around procedure and runway exit plan (shutdown #2 on taxiway) we were slightly over maximum landing weigh but maintenance was not concerned. Score 9.8 for handling event; 2.1 for memory disconnect.
Original NASA ASRS Text
Title: An A319 flight crew reported that they declared an emergency and returned to the departure airport because the oil quantity decreased to 2.2 quarts after takeoff. They did not remember until later that the oil quantity gauge was MEL'ed inoperative.
Narrative: Watched #2 oil quantity drop from 19 quarts to 2.2. Stopped climb; looked in flight manual for guidance and sent ACARS to Dispatch. Oil press was lower than #1 and temperature was slightly elevated. We elected to return to the departure airport. It wasn't until we talked to the mechanics that I remembered the Oil Quantity #2 was deferred inoperative. Dispatch didn't figure it out until we were in final. My expectation during preflight was the readings were to be XXX and not actual numbers. I know what I read it didn't get recalled in the moment. Better would have been to disconnect the canon plug. The return was uneventful; run just as we were trained. I got dirty early and burned off as much fuel as possible to land at maximum landing weight. Reviewed Over Weight checklist; approach and go-around procedure and runway exit plan (shutdown #2 on taxiway) We were slightly over maximum landing weigh but Maintenance was not concerned. Score 9.8 for handling event; 2.1 for memory disconnect.
Data retrieved from NASA's ASRS site as of April 2012 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.