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A B737-600 released for service after #1 engine borescope experienced an in-flight shutdown due to loss of oil quantity and pressure. Caused by engine crank pad cover not torqued.
| Attributes | |
| ACN | 658708 |
| Time | |
| Date | 200505 |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-600 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance technician : 14.5 |
| ASRS Report | 658708 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : #1 engine oil pressure and quantity other flight crewa other flight crewb |
| Resolutory Action | flight crew : landed in emergency condition flight crew : diverted to another airport flight crew : overcame equipment problem |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : work cards contributing factor : schedule pressure performance deficiency : non compliance with legal requirements performance deficiency : testing performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Chart Or Publication Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
While working borescope inspection on #1 engine; I failed to do final torque on #1 engine crank pad cover. This contributed to engine loss of oil and in-flight shutdown and return to gate.
Original NASA ASRS Text
Title: A B737-600 RELEASED FOR SVC AFTER #1 ENG BORESCOPE EXPERIENCED AN INFLT SHUTDOWN DUE TO LOSS OF OIL QUANTITY AND PRESSURE. CAUSED BY ENG CRANK PAD COVER NOT TORQUED.
Narrative: WHILE WORKING BORESCOPE INSPECTION ON #1 ENG; I FAILED TO DO FINAL TORQUE ON #1 ENG CRANK PAD COVER. THIS CONTRIBUTED TO ENG LOSS OF OIL AND INFLT SHUTDOWN AND RETURN TO GATE.
Data retrieved from NASA's ASRS site as of January 2009 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.