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One of a LR25's engines flamed out at the FL440 while operating within engine parameters. An emergency was declared; the aircraft descended to FL240; the engine successfully relit and the pilots continued to an enroute diversion airport.
| Attributes | |
| ACN | 918133 |
| Time | |
| Date | 201011 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Learjet 25 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Turbine Engine |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 200 Flight Crew Total 2100 Flight Crew Type 500 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
In flight at 43;900 leveling off at FL440 we experienced an engine flameout. There were no forewarning signs; engine fluctuations; nor was the engine operated outside of the prescribed parameters. Immediately after the engine flameout was verified by both captain and co-pilot the appropriate checklist was then initiated. We also advised ATC of the situation and requested to descend to FL240 and directed to [land at] the nearest suitable landing facility. Once level at FL240 we initiated the engine air-start procedure as prescribed in the checklist. After engine air-start procedure was completed the engine was restored and operated within normal parameters. We then decided to continue to an enroute alternate with no further problems. Flight diagnostics are attached to this report: ATC gave a pilots discretion climb from FL390 to FL450. At FL440 approximate temperature was iso-57. At FL440 approximate speed in mach was .725. At FL440-tailwind component was +85. At FL440 heading was approximately 025 degrees. At FL440 KTS and miles per hour equaled 471 KTS and 542 mph. At FL440 vertical speed indicated approximately 0 ft per minute climb.
Original NASA ASRS Text
Title: One of a LR25's engines flamed out at the FL440 while operating within engine parameters. An emergency was declared; the aircraft descended to FL240; the engine successfully relit and the pilots continued to an enroute diversion airport.
Narrative: In flight at 43;900 leveling off at FL440 we experienced an engine flameout. There were no forewarning signs; engine fluctuations; nor was the engine operated outside of the prescribed parameters. Immediately after the engine flameout was verified by both Captain and Co-pilot the appropriate checklist was then initiated. We also advised ATC of the situation and requested to descend to FL240 and directed to [land at] the nearest suitable landing facility. Once level at FL240 we initiated the Engine Air-Start procedure as prescribed in the checklist. After Engine Air-Start procedure was completed the engine was restored and operated within normal parameters. We then decided to continue to an enroute alternate with no further problems. Flight Diagnostics are attached to this report: ATC gave a pilots discretion climb from FL390 to FL450. At FL440 approximate temperature was ISO-57. At FL440 approximate speed in Mach was .725. At FL440-tailwind component was +85. At FL440 heading was approximately 025 degrees. At FL440 KTS and miles per hour equaled 471 KTS and 542 MPH. At FL440 vertical speed indicated approximately 0 FT per minute climb.
Data retrieved from NASA's ASRS site as of April 2012 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.