<< >> NASA ASRS Report 449238, September 1999

A DC9-50 on takeoff at 800 ft AGL declared an emergency and returned to the field due to fire warning #1 engine caused by a broken pneumatic tube.

Attributes
ACN	449238
Time
Date	199909
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dtw.airport
State Reference	MI
Altitude	agl single value : 800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : d21.tracon
Operator	common carrier : air carrier
Make Model Name	DC-9 50
Operating Under FAR Part	Part 121
Flight Phase	climbout : takeoff
Route In Use	departure : other published ifr departure
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : atp pilot : flight engineer pilot : instrument pilot : multi engine pilot : private
Experience	flight time last 90 days : 180 flight time total : 17000 flight time type : 300
ASRS Report	449238
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial pilot : multi engine
Events
Anomaly	aircraft equipment problem : critical other anomaly
Independent Detector	aircraft equipment other aircraft equipment : #1 engine fire/out warning
Resolutory Action	flight crew : declared emergency flight crew : landed in emergency condition
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Heavy weight (118000 pounds) full EPR takeoff runway 21C at dtw. Passing 800 ft AGL (1400 ft MSL), the left engine fire handle light illuminated and the fire bell sounded. The left throttle was retarded and at around 70% N1 the fire light went out. (Left throttle was left at 70% N1 until it was retarded on landing.) emergency was declared with dtw approach. Checklists completed and cabin prepared for possible evacuate/evacuation due to the overweight landing. Single engine approach and uneventful landing on runway 21R followed by taxi to the gate after the emergency was terminated. Callback conversation with reporter revealed the following information: the reporter stated the engine was a P&west JT8D-17 and the fire warning was caused by a cracked 13TH stage high pressure tube supplying bleed air to the fuel heater. The reporter said the tube cracked at the point where it attaches to the engine case.

Related reports:

• A DC9-50 on takeoff at V1 speed had #2 engine stall. Declare...
• A DC9-50 on takeoff climb declared an emergency and diverted...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: A DC9-50 ON TKOF AT 800 FT AGL DECLARED AN EMER AND RETURNED TO THE FIELD DUE TO FIRE WARNING #1 ENG CAUSED BY A BROKEN PNEUMATIC TUBE.

Narrative: HVY WT (118000 LBS) FULL EPR TKOF RWY 21C AT DTW. PASSING 800 FT AGL (1400 FT MSL), THE L ENG FIRE HANDLE LIGHT ILLUMINATED AND THE FIRE BELL SOUNDED. THE L THROTTLE WAS RETARDED AND AT AROUND 70% N1 THE FIRE LIGHT WENT OUT. (L THROTTLE WAS LEFT AT 70% N1 UNTIL IT WAS RETARDED ON LNDG.) EMER WAS DECLARED WITH DTW APCH. CHKLISTS COMPLETED AND CABIN PREPARED FOR POSSIBLE EVAC DUE TO THE OVERWT LNDG. SINGLE ENG APCH AND UNEVENTFUL LNDG ON RWY 21R FOLLOWED BY TAXI TO THE GATE AFTER THE EMER WAS TERMINATED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ENG WAS A P&W JT8D-17 AND THE FIRE WARNING WAS CAUSED BY A CRACKED 13TH STAGE HIGH PRESSURE TUBE SUPPLYING BLEED AIR TO THE FUEL HEATER. THE RPTR SAID THE TUBE CRACKED AT THE POINT WHERE IT ATTACHES TO THE ENG CASE.

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.