LJ24 crew had multiple engine flameouts, of the same engine, when attempting climb above FL410.

Attributes
ACN	510218
Time
Date	200104
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : jef.airport
Altitude	msl single value : 42800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zkc.artcc
Operator	common carrier : charter
Make Model Name	Learjet 24
Operating Under FAR Part	Part 135
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : charter
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : instrument pilot : multi engine pilot : atp
Experience	flight time last 90 days : 188 flight time total : 3245 flight time type : 360
ASRS Report	510218
Person 2
Affiliation	company : charter
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical non adherence : company policies non adherence : published procedure non adherence : far other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	controller : provided flight assist controller : issued new clearance flight crew : diverted to another airport flight crew : declared emergency
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

During climb to FL430, our right engine flamed out at FL428. We advised ATC of the problem, descended to lower altitude, and followed relight procedures in the lear pilot manual. After successful relight, we noted all engine indications normal and elected to continue the flight at FL410. After approximately 10 mins at FL410, ATC advised us that they needed us at either FL430 or FL390. I had personally flown this aircraft the previous week at FL430 several times without incident. After discussion with the other pilot, we elected to attempt FL430 again. Leaving FL410, we turned automatic ignitors on and climbed at .81 mach. Reaching FL423 the right engine coughed twice and then flamed out. Due to heavy traffic, ATC gave us priority handling and we descended FL250. Reaching FL250, we had another successful relight, and diverted to jef to inspect the engine.

Original NASA ASRS Text

Title: LJ24 CREW HAD MULTIPLE ENG FLAMEOUTS, OF THE SAME ENG, WHEN ATTEMPTING CLB ABOVE FL410.

Narrative: DURING CLB TO FL430, OUR R ENG FLAMED OUT AT FL428. WE ADVISED ATC OF THE PROB, DSNDED TO LOWER ALT, AND FOLLOWED RELIGHT PROCS IN THE LEAR PLT MANUAL. AFTER SUCCESSFUL RELIGHT, WE NOTED ALL ENG INDICATIONS NORMAL AND ELECTED TO CONTINUE THE FLT AT FL410. AFTER APPROX 10 MINS AT FL410, ATC ADVISED US THAT THEY NEEDED US AT EITHER FL430 OR FL390. I HAD PERSONALLY FLOWN THIS ACFT THE PREVIOUS WK AT FL430 SEVERAL TIMES WITHOUT INCIDENT. AFTER DISCUSSION WITH THE OTHER PLT, WE ELECTED TO ATTEMPT FL430 AGAIN. LEAVING FL410, WE TURNED AUTO IGNITORS ON AND CLBED AT .81 MACH. REACHING FL423 THE R ENG COUGHED TWICE AND THEN FLAMED OUT. DUE TO HVY TFC, ATC GAVE US PRIORITY HANDLING AND WE DSNDED FL250. REACHING FL250, WE HAD ANOTHER SUCCESSFUL RELIGHT, AND DIVERTED TO JEF TO INSPECT THE ENG.

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.