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A B737-200 reported some loss of oil in-flight from #1 engine due to damaged #1 engine oil cap o-ring seal.
| Attributes | |
| ACN | 444817 |
| Time | |
| Date | 199907 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance technician : 10 |
| ASRS Report | 444817 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : #1 engine oil quantity indicator |
| Resolutory Action | none taken : unable |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : repair performance deficiency : inspection performance deficiency : scheduled maintenance |
| Supplementary | |
| Problem Areas | Aircraft Company Maintenance Human Performance |
| Primary Problem | Aircraft |
Narrative:
On jul/xf/99, I was advised by the company that aircraft xyz had reported some loss of engine oil in #1 engine en route to dfw. Upon arriving, maintenance reported replacing the o-ring on the oil cap and servicing oil to full. This was brought to my attention due to the fact that I was assigned to the engine service on a b-chk on jul/xa/99. To the best of my knowledge, the oil cap was installed and secured properly after leak checking and servicing oil on the aircraft in question.
Original NASA ASRS Text
Title: A B737-200 RPTED SOME LOSS OF OIL INFLT FROM #1 ENG DUE TO DAMAGED #1 ENG OIL CAP O-RING SEAL.
Narrative: ON JUL/XF/99, I WAS ADVISED BY THE COMPANY THAT ACFT XYZ HAD RPTED SOME LOSS OF ENG OIL IN #1 ENG ENRTE TO DFW. UPON ARRIVING, MAINT RPTED REPLACING THE O-RING ON THE OIL CAP AND SVCING OIL TO FULL. THIS WAS BROUGHT TO MY ATTN DUE TO THE FACT THAT I WAS ASSIGNED TO THE ENG SVC ON A B-CHK ON JUL/XA/99. TO THE BEST OF MY KNOWLEDGE, THE OIL CAP WAS INSTALLED AND SECURED PROPERLY AFTER LEAK CHKING AND SVCING OIL ON THE ACFT IN QUESTION.
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.