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A B747 after takeoff shut down #2 engine and returned to the field due to loss of oil pressure caused by the oil filler cap not installed.
| Attributes | |
| ACN | 383562 |
| Time | |
| Date | 199710 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B747 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 383562 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | other flight crewa other other : unspecified cockpit |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
On oct/xx/97 at XXX airport, between the hours of XA00 and XD00, I, xyz, svced all 4 engine oils on an air carrier B747, aircraft #YYY. I performed the engine oil servicing at the reservoirs, per air carrier work card instructions. Completing the work on 1 engine at a time, I removed the reservoir cap, inspected the oil level and then secured the cap. Although no oil needed to be added to any of the engines, the service was performed per air carrier work card and all caps were reinstalled and locked. The following day, oct/xz/97 the aircraft departed for destination. The pilot reported low oil pressure and shut down the #2 engine. The aircraft returned to airport. Upon inspection of the #2 engine, the oil cap was found not installed.
Original NASA ASRS Text
Title: A B747 AFTER TKOF SHUT DOWN #2 ENG AND RETURNED TO THE FIELD DUE TO LOSS OF OIL PRESSURE CAUSED BY THE OIL FILLER CAP NOT INSTALLED.
Narrative: ON OCT/XX/97 AT XXX ARPT, BTWN THE HRS OF XA00 AND XD00, I, XYZ, SVCED ALL 4 ENG OILS ON AN ACR B747, ACFT #YYY. I PERFORMED THE ENG OIL SVCING AT THE RESERVOIRS, PER ACR WORK CARD INSTRUCTIONS. COMPLETING THE WORK ON 1 ENG AT A TIME, I REMOVED THE RESERVOIR CAP, INSPECTED THE OIL LEVEL AND THEN SECURED THE CAP. ALTHOUGH NO OIL NEEDED TO BE ADDED TO ANY OF THE ENGS, THE SVC WAS PERFORMED PER ACR WORK CARD AND ALL CAPS WERE REINSTALLED AND LOCKED. THE FOLLOWING DAY, OCT/XZ/97 THE ACFT DEPARTED FOR DESTINATION. THE PLT RPTED LOW OIL PRESSURE AND SHUT DOWN THE #2 ENG. THE ACFT RETURNED TO ARPT. UPON INSPECTION OF THE #2 ENG, THE OIL CAP WAS FOUND NOT INSTALLED.
Data retrieved from NASA's ASRS site as of July 2007 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.