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An MD80 after takeoff diverted due to loss of right engine oil. Oil strainer and seal replaced prior to departure.
| Attributes | |
| ACN | 611215 |
| Time | |
| Date | 200403 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-83 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| ASRS Report | 611215 |
| 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 other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : oil qty and press indicators other flight crewa other flight crewb |
| Resolutory Action | flight crew : diverted to another airport flight crew : overcame equipment problem |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : manuals contributing factor : schedule pressure performance deficiency : testing performance deficiency : non compliance with legal requirements performance deficiency : installation performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Chart Or Publication Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft arrived at gate with 'oil strainer blocked' discrepancy. Per MD80 maintenance manual, required action is to check for blocked strainer, and clean. I removed the main oil filter, found no discrepancies with filter, and installed new filter. Flight crew ran engine at idle for leak check per maintenance manual. No leaks observed and flight departed. After takeoff, crew shut down r-hand engine due to oil loss. In my opinion, if maintenance manual stated to do an 80% N2 engine run there is a better chance a leak would have been found.
Original NASA ASRS Text
Title: AN MD80 AFTER TKOF DIVERTED DUE TO LOSS OF R ENG OIL. OIL STRAINER AND SEAL REPLACED PRIOR TO DEP.
Narrative: ACFT ARRIVED AT GATE WITH 'OIL STRAINER BLOCKED' DISCREPANCY. PER MD80 MAINT MANUAL, REQUIRED ACTION IS TO CHK FOR BLOCKED STRAINER, AND CLEAN. I REMOVED THE MAIN OIL FILTER, FOUND NO DISCREPANCIES WITH FILTER, AND INSTALLED NEW FILTER. FLT CREW RAN ENG AT IDLE FOR LEAK CHK PER MAINT MANUAL. NO LEAKS OBSERVED AND FLT DEPARTED. AFTER TKOF, CREW SHUT DOWN R-HAND ENG DUE TO OIL LOSS. IN MY OPINION, IF MAINT MANUAL STATED TO DO AN 80% N2 ENG RUN THERE IS A BETTER CHANCE A LEAK WOULD HAVE BEEN FOUND.
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.