Precautionary emergency landing.

Attributes
ACN	94925
Time
Date	198809
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : bgm
State Reference	NY
Altitude	msl bound lower : 1630 msl bound upper : 17000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zny tower : bgm
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude descent other landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain
Qualification	pilot : atp
Experience	flight time last 90 days : 50 flight time total : 15000 flight time type : 1000
ASRS Report	94925
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

Climbing through 17000' MSL tail compartment temperature warning light illuminated. Requested to level at 17000'. ATC gave 18000'. At that point phase I and phase ii emergency procedures were completed and the warning light remained on. Procedures then dictated that a landing be made as soon as practical. At that point the ATC was 40 mi from bgm. A landing at bgm was requested and granted. Aircraft landed west/O incident and was inspected by emergency vehicles for fire. Passenger deplaned west/O incident. Callback conversation with reporter revealed the following: reporter states outside inspection showed no fire as crew had also determined, so normal passenger departure. Mechanics were flown in and found 2 problems. Hole in ducting system at heat exchanger. Sensor at heat exchanger activated at 150 degrees although set for 180 degrees. Crew tired all appropriate procedures and none worked.

Original NASA ASRS Text

Title: PRECAUTIONARY EMERGENCY LNDG.

Narrative: CLBING THROUGH 17000' MSL TAIL COMPARTMENT TEMP WARNING LIGHT ILLUMINATED. REQUESTED TO LEVEL AT 17000'. ATC GAVE 18000'. AT THAT POINT PHASE I AND PHASE II EMER PROCS WERE COMPLETED AND THE WARNING LIGHT REMAINED ON. PROCS THEN DICTATED THAT A LNDG BE MADE AS SOON AS PRACTICAL. AT THAT POINT THE ATC WAS 40 MI FROM BGM. A LNDG AT BGM WAS REQUESTED AND GRANTED. ACFT LANDED W/O INCIDENT AND WAS INSPECTED BY EMER VEHICLES FOR FIRE. PAX DEPLANED W/O INCIDENT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: RPTR STATES OUTSIDE INSPECTION SHOWED NO FIRE AS CREW HAD ALSO DETERMINED, SO NORMAL PAX DEP. MECHS WERE FLOWN IN AND FOUND 2 PROBS. HOLE IN DUCTING SYS AT HEAT EXCHANGER. SENSOR AT HEAT EXCHANGER ACTIVATED AT 150 DEGS ALTHOUGH SET FOR 180 DEGS. CREW TIRED ALL APPROPRIATE PROCS AND NONE WORKED.

Data retrieved from NASA's ASRS site as of August 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.