<< >> NASA ASRS Report 748479, July 2007

MD80 warning light illuminated for high temperature in tail compartment. P0WER was reduced and light initially extinguished. When light again illuminated; flight crew declared emergency and diverted.

Attributes
ACN	748479
Time
Date	200707
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 30000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zzz.artcc
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	748479
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	748480
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : warning light
Resolutory Action	flight crew : diverted to another airport flight crew : landed in emergency condition flight crew : declared emergency
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

While climbing through approximately FL300 to a cruising altitude of FL330; the 'tail comp temperature hi' warning light illuminated. I was the PF so the captain accomplished the red box items while I requested a leveloff at our present altitude. The captain requested a lower altitude and continued with the checklist. With the left throttle at idle and the left pack off (as per the checklist); we continued a slow descent below FL240 and the light went out after about 2 mins. The captain talked with dispatch and we elected to continue to our destination as per the QRH. Within 10 mins; the light illuminated again. The captain declared an emergency and we requested an immediate descent for a diversion to ZZZ. We accomplished an overweight landing (132200 pounds) at ZZZ that was otherwise uneventful. It was later discovered that a coupling in the tail compartment was loose.

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Original NASA ASRS Text

Title: MD80 WARNING LIGHT ILLUMINATED FOR HIGH TEMP IN TAIL COMPARTMENT. P0WER WAS REDUCED AND LIGHT INITIALLY EXTINGUISHED. WHEN LIGHT AGAIN ILLUMINATED; FLT CREW DECLARED EMER AND DIVERTED.

Narrative: WHILE CLBING THROUGH APPROX FL300 TO A CRUISING ALT OF FL330; THE 'TAIL COMP TEMP HI' WARNING LIGHT ILLUMINATED. I WAS THE PF SO THE CAPT ACCOMPLISHED THE RED BOX ITEMS WHILE I REQUESTED A LEVELOFF AT OUR PRESENT ALT. THE CAPT REQUESTED A LOWER ALT AND CONTINUED WITH THE CHKLIST. WITH THE L THROTTLE AT IDLE AND THE L PACK OFF (AS PER THE CHKLIST); WE CONTINUED A SLOW DSCNT BELOW FL240 AND THE LIGHT WENT OUT AFTER ABOUT 2 MINS. THE CAPT TALKED WITH DISPATCH AND WE ELECTED TO CONTINUE TO OUR DEST AS PER THE QRH. WITHIN 10 MINS; THE LIGHT ILLUMINATED AGAIN. THE CAPT DECLARED AN EMER AND WE REQUESTED AN IMMEDIATE DSCNT FOR A DIVERSION TO ZZZ. WE ACCOMPLISHED AN OVERWT LNDG (132200 LBS) AT ZZZ THAT WAS OTHERWISE UNEVENTFUL. IT WAS LATER DISCOVERED THAT A COUPLING IN THE TAIL COMPARTMENT WAS LOOSE.

Data retrieved from NASA's ASRS site as of January 2009 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.