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A canadair CL65 engine was shut down in-flight due to loss of oil pressure and quantity. Caused by an internal oil leak.
| Attributes | |
| ACN | 539389 |
| Time | |
| Date | 200202 |
| Day | Wed |
| 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 | Regional Jet CL65, Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 3 |
| ASRS Report | 539389 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Resolutory Action | none taken : detected after the fact other |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : engineering procedure performance deficiency : repair performance deficiency : fault isolation |
| Supplementary | |
| Problem Areas | Chart Or Publication Aircraft Maintenance Human Performance Company |
| Primary Problem | Aircraft |
Narrative:
On feb/wed/02 at approximately XA00, performed oil consumption runs, acceleration checks, deceleration checks. Performed oil leak checks after engine maintenance performance runs. No indications of engine problems or oil consumption or oil leaks during or after engine maintenance runs. On the second flight after release for service, engine failure occurred. Callback conversation with reporter revealed the following information: the reporter stated 2 seals were found and replaced that could have been the cause of the chronic oil consumption problem. The reporter said the required tests were performed including a high power engine run and no leaks were found. The reporter stated this engine had a long history of high oil consumption with a lot of external seals replaced. The reporter said the engine was replaced after the in-flight shutdown and the cause was believed to be a failed 7TH stage carbon seal failure.
Original NASA ASRS Text
Title: A CANADAIR CL65 ENG WAS SHUT DOWN INFLT DUE TO LOSS OF OIL PRESSURE AND QUANTITY. CAUSED BY AN INTERNAL OIL LEAK.
Narrative: ON FEB/WED/02 AT APPROX XA00, PERFORMED OIL CONSUMPTION RUNS, ACCELERATION CHKS, DECELERATION CHKS. PERFORMED OIL LEAK CHKS AFTER ENG MAINT PERFORMANCE RUNS. NO INDICATIONS OF ENG PROBS OR OIL CONSUMPTION OR OIL LEAKS DURING OR AFTER ENG MAINT RUNS. ON THE SECOND FLT AFTER RELEASE FOR SVC, ENG FAILURE OCCURRED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED 2 SEALS WERE FOUND AND REPLACED THAT COULD HAVE BEEN THE CAUSE OF THE CHRONIC OIL CONSUMPTION PROB. THE RPTR SAID THE REQUIRED TESTS WERE PERFORMED INCLUDING A HIGH PWR ENG RUN AND NO LEAKS WERE FOUND. THE RPTR STATED THIS ENG HAD A LONG HISTORY OF HIGH OIL CONSUMPTION WITH A LOT OF EXTERNAL SEALS REPLACED. THE RPTR SAID THE ENG WAS REPLACED AFTER THE INFLT SHUTDOWN AND THE CAUSE WAS BELIEVED TO BE A FAILED 7TH STAGE CARBON SEAL FAILURE.
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.