APU fire in-flight. Return to departure airport.

Attributes
ACN	167723
Time
Date	199012
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : lhr
State Reference	FO
Altitude	msl bound lower : 8000 msl bound upper : 15000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : egtt tracon : lhr
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 4 Turbojet Eng
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude other
Route In Use	enroute airway : egtt
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : private pilot : flight engineer pilot : commercial pilot : atp pilot : instrument
Experience	flight time last 90 days : 108 flight time total : 7500 flight time type : 900
ASRS Report	167723
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 18000 flight time type : 500
ASRS Report	167861
Events
Anomaly	aircraft equipment problem : critical non adherence : far non adherence : published procedure
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

APU fire indication. Completed checklist and amplification procedures, and fired extinguisher agent into APU area. Returned to london heathrow airport as quickly as possible. I deemed it safer to make a smooth overweight landing rather than dump fuel. Landing weight 680000 pounds. WX clear.

Original NASA ASRS Text

Title: APU FIRE INFLT. RETURN TO DEP ARPT.

Narrative: APU FIRE INDICATION. COMPLETED CHECKLIST AND AMPLIFICATION PROCS, AND FIRED EXTINGUISHER AGENT INTO APU AREA. RETURNED TO LONDON HEATHROW ARPT AS QUICKLY AS POSSIBLE. I DEEMED IT SAFER TO MAKE A SMOOTH OVERWEIGHT LNDG RATHER THAN DUMP FUEL. LNDG WEIGHT 680000 LBS. WX CLR.

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.