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An EMB145 #1 engine was svced with 9 pints of oil by a contract technician and leak checked prior to departure. Maintenance controller was unaware the engine oil monitoring trend procedure was required at 9 pint level.
| Attributes | |
| ACN | 720247 |
| Time | |
| Date | 200612 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Dawn |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 145 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : preflight |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | oversight : coordinator |
| ASRS Report | 720247 |
| Person 2 | |
| Affiliation | other |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other other : 3 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure contributing factor : work cards performance deficiency : non compliance with legal requirements performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
Crew called and informed maintenance control that engine #1 showed 5 quarts. We had contract mechanic come out to the aircraft and service the engine. We felt that the engine was quite low and he added 9 pints of oil. I was under the impression that the limit for trend monitoring was 10 pints. Just to be safe we performed a leak check prior to departure to ensure that there were no leaks. After the aircraft departure we determined that the limit for trend monitoring was in fact 9 pints. Upon aircraft arrival the aircraft was taken OTS and the procedures were complied with and the engine is now on engine oil consumption watch.
Original NASA ASRS Text
Title: AN EMB145 #1 ENG WAS SVCED WITH 9 PINTS OF OIL BY A CONTRACT TECHNICIAN AND LEAK CHKED PRIOR TO DEP. MAINT CTLR WAS UNAWARE THE ENG OIL MONITORING TREND PROC WAS REQUIRED AT 9 PINT LEVEL.
Narrative: CREW CALLED AND INFORMED MAINT CTL THAT ENG #1 SHOWED 5 QUARTS. WE HAD CONTRACT MECH COME OUT TO THE ACFT AND SVC THE ENG. WE FELT THAT THE ENG WAS QUITE LOW AND HE ADDED 9 PINTS OF OIL. I WAS UNDER THE IMPRESSION THAT THE LIMIT FOR TREND MONITORING WAS 10 PINTS. JUST TO BE SAFE WE PERFORMED A LEAK CHK PRIOR TO DEP TO ENSURE THAT THERE WERE NO LEAKS. AFTER THE ACFT DEP WE DETERMINED THAT THE LIMIT FOR TREND MONITORING WAS IN FACT 9 PINTS. UPON ACFT ARR THE ACFT WAS TAKEN OTS AND THE PROCS WERE COMPLIED WITH AND THE ENG IS NOW ON ENG OIL CONSUMPTION WATCH.
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.