A lockheed HC130P while taxiing declared an emergency due to a #3 engine fire warning.

Attributes
ACN	394355
Time
Date	199802
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : nvq
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	other
Make Model Name	Hercules (C-130)
Operating Under FAR Part	other : other
Navigation In Use	Other
Flight Phase	ground : holding ground other : taxi
Flight Plan	VFR
Person 1
Affiliation	government : military
Function	other personnel other
Qualification	pilot : military
Experience	flight time last 90 days : 50 flight time total : 2200 flight time type : 2100
ASRS Report	394355
Person 2
Affiliation	government : military
Function	flight crew : first officer
Qualification	pilot : military
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 other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

Departed nuq for a routine military training mission to include numerous approachs at moffet prior to our training mission. After our first approach and landing we stopped the aircraft during taxi to change coplts. The second copilot was in the process of getting in the seat. At this time #3 engine t-handle fire light illuminated giving a steady indication. The second copilot was not yet hooked up on the intercom system. Although the copilot could not hear the crew communicating, he was aware of the #3 t-handle fire light. The crew accomplished the emergency checklist for the affected engine and discharged the first fire bottle agent. The t-handle fire light was still illuminated. The second and last fire bottle agent was discharged with the same result. The crew accomplished the emergency shutdown of the remaining 3 engines. The pilot called ground for crash fire response and initiated emergency ground egress. The crew egressed without incident. Crash fire responded within 2 mins of the initial call to ground. No fire was found and the aircraft was turned over to maintenance. Callback conversation with reporter revealed the following information: the reporter stated the false warning was caused by shorted and defective wiring on the fire warning system aft of the firewall but located in the #3 engine nacelle.

Original NASA ASRS Text

Title: A LOCKHEED HC130P WHILE TAXIING DECLARED AN EMER DUE TO A #3 ENG FIRE WARNING.

Narrative: DEPARTED NUQ FOR A ROUTINE MIL TRAINING MISSION TO INCLUDE NUMEROUS APCHS AT MOFFET PRIOR TO OUR TRAINING MISSION. AFTER OUR FIRST APCH AND LNDG WE STOPPED THE ACFT DURING TAXI TO CHANGE COPLTS. THE SECOND COPLT WAS IN THE PROCESS OF GETTING IN THE SEAT. AT THIS TIME #3 ENG T-HANDLE FIRE LIGHT ILLUMINATED GIVING A STEADY INDICATION. THE SECOND COPLT WAS NOT YET HOOKED UP ON THE INTERCOM SYS. ALTHOUGH THE COPLT COULD NOT HEAR THE CREW COMMUNICATING, HE WAS AWARE OF THE #3 T-HANDLE FIRE LIGHT. THE CREW ACCOMPLISHED THE EMER CHKLIST FOR THE AFFECTED ENG AND DISCHARGED THE FIRST FIRE BOTTLE AGENT. THE T-HANDLE FIRE LIGHT WAS STILL ILLUMINATED. THE SECOND AND LAST FIRE BOTTLE AGENT WAS DISCHARGED WITH THE SAME RESULT. THE CREW ACCOMPLISHED THE EMER SHUTDOWN OF THE REMAINING 3 ENGS. THE PLT CALLED GND FOR CRASH FIRE RESPONSE AND INITIATED EMER GND EGRESS. THE CREW EGRESSED WITHOUT INCIDENT. CRASH FIRE RESPONDED WITHIN 2 MINS OF THE INITIAL CALL TO GND. NO FIRE WAS FOUND AND THE ACFT WAS TURNED OVER TO MAINT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE FALSE WARNING WAS CAUSED BY SHORTED AND DEFECTIVE WIRING ON THE FIRE WARNING SYS AFT OF THE FIREWALL BUT LOCATED IN THE #3 ENG NACELLE.

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.