<< >> NASA ASRS Report 396768, March 1998

A B747-100 in cruise at FL350 declared an emergency due to #4 engine flameout. Descended to a lower level and experienced a successful relight.

Attributes
ACN	396768
Time
Date	199803
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : igsn
State Reference	FO
Altitude	msl bound lower : 35000 msl bound upper : 35000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : pgua
Operator	common carrier : air carrier
Make Model Name	B747-100
Operating Under FAR Part	Part 121
Flight Phase	cruise other other
Route In Use	enroute : other oceanic
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 70 flight time total : 22700 flight time type : 70
ASRS Report	396768
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : declared emergency flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

Engine #4 flamed out during cruise flight. While working with so with first officer flying the aircraft descended below assigned altitude. Declared an emergency and received descent clearance. Should have declared emergency sooner. Descended and had successful engine relight. Was cleared back to FL350 and continued on to nrt. Oceanic clearance wanted to know if I was canceling the emergency and I responded yes. Probably should have stayed on the emergency clearance for the possibility that the engine would fail again. A contributing factor was captain's inexperience in the aircraft and international flying. Communications were very difficult through radio operator to ATC.

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Original NASA ASRS Text

Title: A B747-100 IN CRUISE AT FL350 DECLARED AN EMER DUE TO #4 ENG FLAMEOUT. DSNDED TO A LOWER LEVEL AND EXPERIENCED A SUCCESSFUL RELIGHT.

Narrative: ENG #4 FLAMED OUT DURING CRUISE FLT. WHILE WORKING WITH SO WITH FO FLYING THE ACFT DSNDED BELOW ASSIGNED ALT. DECLARED AN EMER AND RECEIVED DSCNT CLRNC. SHOULD HAVE DECLARED EMER SOONER. DSNDED AND HAD SUCCESSFUL ENG RELIGHT. WAS CLRED BACK TO FL350 AND CONTINUED ON TO NRT. OCEANIC CLRNC WANTED TO KNOW IF I WAS CANCELING THE EMER AND I RESPONDED YES. PROBABLY SHOULD HAVE STAYED ON THE EMER CLRNC FOR THE POSSIBILITY THAT THE ENG WOULD FAIL AGAIN. A CONTRIBUTING FACTOR WAS CAPT'S INEXPERIENCE IN THE ACFT AND INTL FLYING. COMS WERE VERY DIFFICULT THROUGH RADIO OPERATOR TO ATC.

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.