<< >> NASA ASRS Report 419551, November 1998

A B747-200 in cruise at FL350 declared an emergency and diverted due to high egt and loss of power #3 engine.

Attributes
ACN	419551
Time
Date	199811
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : hnl
State Reference	HI
Altitude	msl bound lower : 35000 msl bound upper : 35000
Environment
Flight Conditions	Mixed
Light	Night
Aircraft 1
Controlling Facilities	tower : atl
Operator	common carrier : air carrier
Make Model Name	B747-100
Flight Phase	cruise other other other
Route In Use	enroute : other oceanic enroute airway : zoa
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 10000 flight time type : 150
ASRS Report	419551
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : declared emergency other
Consequence	Other

Narrative:

Engine failed at longitude 175 degrees west. No warning, high egt, captain shut it down. Turned off track 25-30 mi, then descended to FL300. VHF advisory on 121.50. Received clearance to hnl. Unable sea. Alternate was fai equal distance to hnl. Hnl better WX straight-in approach. Maintenance wanted restart. Restart successful but on advancement of thrust lever, vibration and compressor stall at below 80% N2. Shut down engine again, proceeded to hnl in the block FL280-FL310. Landed uneventfully. Emergency declared. All checklists completed. Callback conversation with reporter revealed the following information: the reporter stated the maintenance controller requested a restart on the engine and restart ok, but vibration and compressor stalls were the result. The reporter said hnl maintenance found metal in the screens and tailpipe and determined it was an engine change. The reporter stated the aircraft was maintenance ferried to nrt where a spare engine was available.

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Original NASA ASRS Text

Title: A B747-200 IN CRUISE AT FL350 DECLARED AN EMER AND DIVERTED DUE TO HIGH EGT AND LOSS OF PWR #3 ENG.

Narrative: ENG FAILED AT LONGITUDE 175 DEGS W. NO WARNING, HIGH EGT, CAPT SHUT IT DOWN. TURNED OFF TRACK 25-30 MI, THEN DSNDED TO FL300. VHF ADVISORY ON 121.50. RECEIVED CLRNC TO HNL. UNABLE SEA. ALTERNATE WAS FAI EQUAL DISTANCE TO HNL. HNL BETTER WX STRAIGHT-IN APCH. MAINT WANTED RESTART. RESTART SUCCESSFUL BUT ON ADVANCEMENT OF THRUST LEVER, VIBRATION AND COMPRESSOR STALL AT BELOW 80% N2. SHUT DOWN ENG AGAIN, PROCEEDED TO HNL IN THE BLOCK FL280-FL310. LANDED UNEVENTFULLY. EMER DECLARED. ALL CHKLISTS COMPLETED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE MAINT CTLR REQUESTED A RESTART ON THE ENG AND RESTART OK, BUT VIBRATION AND COMPRESSOR STALLS WERE THE RESULT. THE RPTR SAID HNL MAINT FOUND METAL IN THE SCREENS AND TAILPIPE AND DETERMINED IT WAS AN ENG CHANGE. THE RPTR STATED THE ACFT WAS MAINT FERRIED TO NRT WHERE A SPARE ENG WAS AVAILABLE.

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.