 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Air carrier aircraft experienced a loss of engine oil quantity and pressure; resulting in engine shut down.
| Attributes | |
| ACN | 1074392 |
| Time | |
| Date | 201303 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Widebody Low Wing 4 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Lubrication Oil |
| Person 1 | |
| Function | Captain Check Pilot Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 220 Flight Crew Total 20000 Flight Crew Type 5000 |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Experience | Flight Crew Last 90 Days 240 Flight Crew Total 11400 Flight Crew Type 4500 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Approaching level off at FL310; we noticed the number 1 engine oil quantity decreasing. We got out the low oil pressure checklist in anticipation of a problem and to review it; and then called maintenance (via dispatch). As we were talking to them; the oil quantity did reach zero; and the oil pressure began a slow decrease; and when it reached the red area we shut the engine down per the checklist. After consultation with maintenance and dispatch; we elected to return to the departure airport. We dumped approximately 110;000 pounds of fuel (planning for a landing weight of 630.0-maximum landing weight). We do have a concern; as the number 1 and number 4 tanks went down to approximately 25.0 on number 1; and 22.0 on number 4 while the number 2 and number 3 were still in the 35.0 range (with reserve fuel to go). This did not make sense; and we closed the number 4 crossfeed so as to stop dumping from that tank; and proceeded the dumping. When the desired fuel was reached; we terminated dumping; and even though we had an EICAS message of 1-4 fuel imbalance; we elected to land in that configuration. This has already been discussed with the fleet technical captain. As this was the first leg of an initial captain oe; I (the check airman) elected to take the landing for numerous reasons; including winds in excess of 22 KTS; and the fact I had 'signed' for the airplane. The landing was uneventful; and we got to the gate with no issues.
Original NASA ASRS Text
Title: Air Carrier aircraft experienced a loss of engine oil quantity and pressure; resulting in engine shut down.
Narrative: Approaching level off at FL310; we noticed the Number 1 Engine oil quantity decreasing. We got out the low oil pressure checklist in anticipation of a problem and to review it; and then called Maintenance (via Dispatch). As we were talking to them; the oil quantity did reach zero; and the oil pressure began a slow decrease; and when it reached the red area we shut the engine down per the checklist. After consultation with Maintenance and Dispatch; we elected to return to the departure airport. We dumped approximately 110;000 LBS of fuel (planning for a landing weight of 630.0-maximum landing weight). We do have a concern; as the Number 1 and Number 4 tanks went down to approximately 25.0 on Number 1; and 22.0 on Number 4 while the Number 2 and Number 3 were still in the 35.0 range (with reserve fuel to go). This did not make sense; and we closed the Number 4 crossfeed so as to stop dumping from that tank; and proceeded the dumping. When the desired fuel was reached; we terminated dumping; and even though we had an EICAS message of 1-4 fuel imbalance; we elected to land in that configuration. This has already been discussed with the Fleet Technical Captain. As this was the first leg of an initial Captain OE; I (the Check Airman) elected to take the landing for numerous reasons; including winds in excess of 22 KTS; and the fact I had 'signed' for the airplane. The landing was uneventful; and we got to the gate with no issues.
Data retrieved from NASA's ASRS site as of July 2013 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.