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A canadair cl-65 in cruise at FL270 declared an emergency and diverted due to right engine failure caused by accessory gearbox internal failure.
| Attributes | |
| ACN | 549504 |
| Time | |
| Date | 200205 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz1.airport |
| State Reference | US |
| Altitude | msl single value : 27000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzz.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65, Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : level |
| Route In Use | arrival star : zzz1 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : instrument pilot : multi engine pilot : cfi |
| Experience | flight time last 90 days : 210 flight time total : 4300 flight time type : 2800 |
| ASRS Report | 549504 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : right n2 indicator other flight crewa other flight crewb |
| Resolutory Action | flight crew : diverted to another airport flight crew : declared emergency |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
We were at FL270 and just been cleared to a lower altitude when the #2 engine failed. We began the checklist procedures, declared an emergency and identified ZZZ1 as the nearest suitable airport in point of time. As we proceeded with the QRH checklist, it became apparent that the N2 (core) section of the engine had seized, so a relight would not be possible. The engine was secured and we informed the passengers and the flight attendant of the situation after we verified with our dispatcher that ZZZ1 would be suitable for landing. An uneventful single engine landing was made, with crash fire rescue equipment standing by. Callback conversation with reporter revealed the following information: the reporter stated the N2 rotor was actually frozen due to the gearbox failure. The reporter said the sudden stoppage of the N2 rotor strangely was not felt in the airplane. The reporter stated the engine was changed and the shop reported gearbox internal damage which caused the N2 rotor to seize.
Original NASA ASRS Text
Title: A CANADAIR CL-65 IN CRUISE AT FL270 DECLARED AN EMER AND DIVERTED DUE TO R ENG FAILURE CAUSED BY ACCESSORY GEARBOX INTERNAL FAILURE.
Narrative: WE WERE AT FL270 AND JUST BEEN CLRED TO A LOWER ALTITUDE WHEN THE #2 ENG FAILED. WE BEGAN THE CHKLIST PROCEDURES, DECLARED AN EMER AND IDENTIFIED ZZZ1 AS THE NEAREST SUITABLE ARPT IN POINT OF TIME. AS WE PROCEEDED WITH THE QRH CHKLIST, IT BECAME APPARENT THAT THE N2 (CORE) SECTION OF THE ENG HAD SEIZED, SO A RELIGHT WOULD NOT BE POSSIBLE. THE ENG WAS SECURED AND WE INFORMED THE PASSENGERS AND THE FA OF THE SIT AFTER WE VERIFIED WITH OUR DISPATCHER THAT ZZZ1 WOULD BE SUITABLE FOR LNDG. AN UNEVENTFUL SINGLE ENG LNDG WAS MADE, WITH CFR STANDING BY. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE N2 ROTOR WAS ACTUALLY FROZEN DUE TO THE GEARBOX FAILURE. THE RPTR SAID THE SUDDEN STOPPAGE OF THE N2 ROTOR STRANGELY WAS NOT FELT IN THE AIRPLANE. THE RPTR STATED THE ENG WAS CHANGED AND THE SHOP RPTED GEARBOX INTERNAL DAMAGE WHICH CAUSED THE N2 ROTOR TO SEIZE.
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.