False fire warning APU.

Attributes
ACN	295132
Time
Date	199501
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bkk
State Reference	FO
Altitude	msl bound lower : 35000 msl bound upper : 35000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tower : bkk artcc : zdv
Operator	common carrier : air carrier
Make Model Name	B747 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	descent other
Route In Use	enroute airway : vtbb
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial pilot : instrument pilot : flight engineer
Experience	flight time last 90 days : 120 flight time total : 15000 flight time type : 120
ASRS Report	295132
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 152 flight time total : 7600 flight time type : 2000
ASRS Report	295613
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : overcame equipment problem flight crew : declared emergency
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

After we started descent, the APU fire warning enunciated. We were not using the APU at the time, but we did the fire checklist anyway. We shot the fire bottle into the APU and eventually the fire warning went out. We landed at bkk without event. The fire trucks were there to meet us. No fire was found.

Original NASA ASRS Text

Title: FALSE FIRE WARNING APU.

Narrative: AFTER WE STARTED DSCNT, THE APU FIRE WARNING ENUNCIATED. WE WERE NOT USING THE APU AT THE TIME, BUT WE DID THE FIRE CHKLIST ANYWAY. WE SHOT THE FIRE BOTTLE INTO THE APU AND EVENTUALLY THE FIRE WARNING WENT OUT. WE LANDED AT BKK WITHOUT EVENT. THE FIRE TRUCKS WERE THERE TO MEET US. NO FIRE WAS FOUND.

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.