B747 had #4 engine failure and fire warning.

Attributes
ACN	472956
Time
Date	200005
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : anc.vor
State Reference	AK
Altitude	msl single value : 7000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : bdl.tracon
Operator	common carrier : air carrier
Make Model Name	B747-100
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : vacating altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : atp pilot : instrument pilot : flight engineer pilot : commercial pilot : cfi
Experience	flight time last 90 days : 0 flight time total : 9500 flight time type : 0
ASRS Report	472956
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : flight engineer pilot : multi engine pilot : atp
Experience	flight time last 90 days : 140 flight time total : 12000 flight time type : 350
ASRS Report	472957
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance controller : provided flight assist flight crew : diverted to another airport flight crew : landed in emergency condition flight crew : declared emergency
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Climbing through 7000 ft after departure runway 32 anc, engine #4 oil bypass light illuminated. Oil quantity indicated zero and pressure was 33 psi and decreasing. Forward pnl engine #4 low oil pressure light then illuminated. Following our cockpit operating manual for low oil pressure, we then got a fire light and bell on engine #4. Captain continued to fly and first officer and myself performed the emergency checklist. The fire light/nacelle temperature did not extinguish/decrease until after the second (last) fire extinguisher bottle was discharged. We dumped about 15000 pounds of fuel and landed back at anc runway 6L. Overweight landing 744000 pounds (630000 pounds is maximum landing weight). Taxied clear and stopped. Brakes then froze from heat. Maintenance met the aircraft, the aircraft was released to maintenance.

Original NASA ASRS Text

Title: B747 HAD #4 ENG FAILURE AND FIRE WARNING.

Narrative: CLBING THROUGH 7000 FT AFTER DEP RWY 32 ANC, ENG #4 OIL BYPASS LIGHT ILLUMINATED. OIL QUANTITY INDICATED ZERO AND PRESSURE WAS 33 PSI AND DECREASING. FORWARD PNL ENG #4 LOW OIL PRESSURE LIGHT THEN ILLUMINATED. FOLLOWING OUR COCKPIT OPERATING MANUAL FOR LOW OIL PRESSURE, WE THEN GOT A FIRE LIGHT AND BELL ON ENG #4. CAPT CONTINUED TO FLY AND FO AND MYSELF PERFORMED THE EMER CHKLIST. THE FIRE LIGHT/NACELLE TEMP DID NOT EXTINGUISH/DECREASE UNTIL AFTER THE SECOND (LAST) FIRE EXTINGUISHER BOTTLE WAS DISCHARGED. WE DUMPED ABOUT 15000 LBS OF FUEL AND LANDED BACK AT ANC RWY 6L. OVERWT LNDG 744000 LBS (630000 LBS IS MAX LNDG WT). TAXIED CLR AND STOPPED. BRAKES THEN FROZE FROM HEAT. MAINT MET THE ACFT, THE ACFT WAS RELEASED TO MAINT.

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.