LJ25 captain experiences an engine flame out at FL410 which is attributed to the high altitude and l...

Attributes
ACN	1118788
Time
Date	201309
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Make Model Name	Learjet 25
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	Direct
Flight Plan	IFR
Component
Aircraft Component	Turbine Engine
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 125 Flight Crew Total 6000 Flight Crew Type 3000
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Approximately 5 to 10 minutes after level out at FL410; the left engine flamed out while at a long range fuel setting and at mach .67 or .68 for maximum range. I requested FL250 from ATC and was cleared to FL250 and ATC asked if I had an emergency. I informed ATC that I had experienced an engine flameout and was going to descend for a restart. ATC asked again if I was declaring an emergency and I replied 'no; I am descending for a restart'. On reaching FL250; I completed a windmilling restart according to the checklist at which time the engine restarted normally and came up to power. Since the flameout was most likely the result of high altitude and low power settings and the engine was performing normally; I requested and climbed to FL330 and monitored all engine settings which remained normal. After landing; I had a mechanic look at the engine and complete a normal start and power run and will have a logbook entry that the engine is airworthy.

Original NASA ASRS Text

Title: LJ25 Captain experiences an engine flame out at FL410 which is attributed to the high altitude and low power setting. A descent to FL250 is requested and the engine is successfully started. Flight continues at FL330 and upon landing Maintenance can find no faults.

Narrative: Approximately 5 to 10 minutes after level out at FL410; the left engine flamed out while at a long range fuel setting and at mach .67 or .68 for maximum range. I requested FL250 from ATC and was cleared to FL250 and ATC asked if I had an emergency. I informed ATC that I had experienced an engine flameout and was going to descend for a restart. ATC asked again if I was declaring an emergency and I replied 'No; I am descending for a restart'. On reaching FL250; I completed a windmilling restart according to the checklist at which time the engine restarted normally and came up to power. Since the flameout was most likely the result of high altitude and low power settings and the engine was performing normally; I requested and climbed to FL330 and monitored all engine settings which remained normal. After landing; I had a Mechanic look at the engine and complete a normal start and power run and will have a logbook entry that the engine is airworthy.

Data retrieved from NASA's ASRS site as of July 2013 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.

LJ25 captain experiences an engine flame out at FL410 which is attributed to the high altitude and low power setting. A descent to FL250 is requested and the engine is successfully started. Flight continues at FL330 and upon landing maintenance can find no faults.