Air carrier at FL390 has #1 engine problem. Shut down. Elect to continue to destination.

Attributes
ACN	191630
Time
Date	199110
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : adm
State Reference	OK
Altitude	msl bound lower : 35000 msl bound upper : 35000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 210 flight time total : 9000 flight time type : 7500
ASRS Report	191630
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : flight engineer
Experience	flight time last 90 days : 75 flight time total : 3100 flight time type : 1171
ASRS Report	191947
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Aircraft had just reached FL350. Power set. Felt slight airframe vibration. Notice fluctuating fuel flow. Then noticed (#1 engine) fluctuations in other engine instruments on #1 engine. Heard a muffled bang. Reduced power to approximately 70 percent N2 on #1 engine. #1 stabilized. Elected to shut down #1 and proceed to denver. Flight to denver uneventful. Descended to FL280. Supplemental information from acn 191947. Consultation with company flight control/dispatch resulted in an encouragement to 'press on' to den. The captain agreed that it could be done safely and asked for our input. (The WX was clear and fuel adequate). The so recommended going back. I agreed that we could make denver safely but dfw was right there and iah was closer than den. I also told him to go on in a similar situation and they were not praised for their decision.

Original NASA ASRS Text

Title: ACR AT FL390 HAS #1 ENG PROBLEM. SHUT DOWN. ELECT TO CONTINUE TO DEST.

Narrative: ACFT HAD JUST REACHED FL350. PWR SET. FELT SLIGHT AIRFRAME VIBRATION. NOTICE FLUCTUATING FUEL FLOW. THEN NOTICED (#1 ENG) FLUCTUATIONS IN OTHER ENG INSTS ON #1 ENG. HEARD A MUFFLED BANG. REDUCED PWR TO APPROX 70 PERCENT N2 ON #1 ENG. #1 STABILIZED. ELECTED TO SHUT DOWN #1 AND PROCEED TO DENVER. FLT TO DENVER UNEVENTFUL. DSNDED TO FL280. SUPPLEMENTAL INFO FROM ACN 191947. CONSULTATION WITH COMPANY FLT CTL/DISPATCH RESULTED IN AN ENCOURAGEMENT TO 'PRESS ON' TO DEN. THE CAPT AGREED THAT IT COULD BE DONE SAFELY AND ASKED FOR OUR INPUT. (THE WX WAS CLR AND FUEL ADEQUATE). THE SO RECOMMENDED GOING BACK. I AGREED THAT WE COULD MAKE DENVER SAFELY BUT DFW WAS RIGHT THERE AND IAH WAS CLOSER THAN DEN. I ALSO TOLD HIM TO GO ON IN A SIMILAR SITUATION AND THEY WERE NOT PRAISED FOR THEIR DECISION.

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.