<< >> NASA ASRS Report 526695, October 2001

An FK100 flight has a tail deice failure with the crew coordination with company and ATC to avoid clouds and icing conditions near irk.

Attributes
ACN	526695
Time
Date	200110
Day	Fri
Place
Locale Reference	atc facility : zkc.artcc
State Reference	KS
Altitude	msl single value : 26000
Environment
Flight Conditions	IMC
Weather Elements	Ice
Aircraft 1
Controlling Facilities	artcc : zkc.artcc tracon : sct.tracon
Operator	common carrier : air carrier
Make Model Name	Fokker 100
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	526695
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical inflight encounter : weather
Independent Detector	aircraft equipment other aircraft equipment : fault light other flight crewa other flight crewb
Resolutory Action	controller : provided flight assist flight crew : declared emergency flight crew : exited adverse environment flight crew : landed as precaution flight crew : took precautionary avoidance action
Consequence	faa : reviewed incident with flight crew other
Supplementary
Problem Areas	Weather Aircraft
Primary Problem	Aircraft

Narrative:

While at cruise in and out of cloud tops at FL260, the tail anti-ice fault illuminated. We accomplished the MFDU checklist and fault occurred again. We turned tail anti-ice off and requested higher altitude to remain clear of icing conditions. We were cleared to FL280 and later to FL310 which allowed us to remain clear of icing. We coordinated with ftw dispatch and ATC to avoid ice. We declared an emergency and took a rerte and descent to 8000 ft at sln to avoid clouds above the freezing level. We applied all checklists and made a normal landing at okc. Emergency was terminated at okc. FAA inspector on jump seat was pleased with the handling of the situation and had no additional suggestions or comment.

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Original NASA ASRS Text

Title: AN FK100 FLT HAS A TAIL DEICE FAILURE WITH THE CREW COORD WITH COMPANY AND ATC TO AVOID CLOUDS AND ICING CONDITIONS NEAR IRK.

Narrative: WHILE AT CRUISE IN AND OUT OF CLOUD TOPS AT FL260, THE TAIL ANTI-ICE FAULT ILLUMINATED. WE ACCOMPLISHED THE MFDU CHKLIST AND FAULT OCCURRED AGAIN. WE TURNED TAIL ANTI-ICE OFF AND REQUESTED HIGHER ALT TO REMAIN CLR OF ICING CONDITIONS. WE WERE CLRED TO FL280 AND LATER TO FL310 WHICH ALLOWED US TO REMAIN CLR OF ICING. WE COORDINATED WITH FTW DISPATCH AND ATC TO AVOID ICE. WE DECLARED AN EMER AND TOOK A RERTE AND DSCNT TO 8000 FT AT SLN TO AVOID CLOUDS ABOVE THE FREEZING LEVEL. WE APPLIED ALL CHKLISTS AND MADE A NORMAL LNDG AT OKC. EMER WAS TERMINATED AT OKC. FAA INSPECTOR ON JUMP SEAT WAS PLEASED WITH THE HANDLING OF THE SIT AND HAD NO ADDITIONAL SUGGESTIONS OR COMMENT.

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.