<< >> NASA ASRS Report 552568, June 2002

An emergency was declared by the flight crew of a B737-300 at FL370 over lar and an in-flight engine shutdown performed when the #1 cowl anti-ice warning light illuminated and would not go out until the flight's landing roll at den, co.

Attributes
ACN	552568
Time
Date	200206
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : lar.vortac
State Reference	WY
Altitude	msl single value : 37000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdv.artcc
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	552568
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : cowl anti ice wing lite
Resolutory Action	aircraft : equipment problem dissipated flight crew : declared emergency flight crew : diverted to another airport flight crew : landed in emergency condition
Consequence	other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

At FL370, the #1 cowl anti-ice amber warning light illuminated. The light stayed on and would not go out. After talking to maintenance control and dispatch, we had no way of knowing if there was an overtemp, overpressure, or a false indication. We elected to secure the engine to prevent any overtemp or pressure to exist. We secured the engine at FL260 over laramie. CRM was used with maintenance control, dispatch, and flight attendants. Appropriate checklists were used. An emergency was declared. A single engine approach and landing in denver was executed with equipment standing by. The amber alert was canceled on our rollout.

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Original NASA ASRS Text

Title: AN EMER WAS DECLARED BY THE FLC OF A B737-300 AT FL370 OVER LAR AND AN INFLT ENG SHUTDOWN PERFORMED WHEN THE #1 COWL ANTI-ICE WARNING LIGHT ILLUMINATED AND WOULD NOT GO OUT UNTIL THE FLT'S LNDG ROLL AT DEN, CO.

Narrative: AT FL370, THE #1 COWL ANTI-ICE AMBER WARNING LIGHT ILLUMINATED. THE LIGHT STAYED ON AND WOULD NOT GO OUT. AFTER TALKING TO MAINT CTL AND DISPATCH, WE HAD NO WAY OF KNOWING IF THERE WAS AN OVERTEMP, OVERPRESSURE, OR A FALSE INDICATION. WE ELECTED TO SECURE THE ENG TO PREVENT ANY OVERTEMP OR PRESSURE TO EXIST. WE SECURED THE ENG AT FL260 OVER LARAMIE. CRM WAS USED WITH MAINT CTL, DISPATCH, AND FLT ATTENDANTS. APPROPRIATE CHKLISTS WERE USED. AN EMER WAS DECLARED. A SINGLE ENG APCH AND LNDG IN DENVER WAS EXECUTED WITH EQUIP STANDING BY. THE AMBER ALERT WAS CANCELED ON OUR ROLLOUT.

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.