An small aircraft mooney flies through ZAU, il, airspace suffers engine stoppage due to ice. Pilot i...

Attributes
ACN	396034
Time
Date	199803
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : sbn
State Reference	IN
Altitude	msl bound lower : 11500 msl bound upper : 12000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zau
Operator	general aviation : personal
Make Model Name	Mooney Aircraft Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : private
Experience	flight time last 90 days : 30 flight time total : 800 flight time type : 750
ASRS Report	396034
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	aircraft equipment problem : critical inflight encounter : weather
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : overcame equipment problem flight crew : regained aircraft control
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

After numerous briefings, departed into low ceiling, drizzle above freezing, encountered light to moderate ice during climb out. Briefings showed multiple layers and no ice being reported. At 12000 ft pulled carburetor heat in visible moisture. Engine quit running from carburetor heat application. Callback conversation with reporter revealed the following information: pilot was flying 1960 mooney. Engine has normal carburetion. The flight was from dtw, mi, to another airport in the rfd, il, area. Pilot had looked in the FSS briefings for indications that there were clear areas with no icing. He flew in clear areas until he was in sbn area. At that location he got into some clouds and icing began to form. When he applied carburetor heat, he felt a clunk like sound go through the engine. Then, the engine started to run rough, he pushed carburetor heat back in and the engine ran smooth for a short while then rough. Pilot again applied carburetor heat and engine quit. Pilot moved carburetor heat to off position and the engine was able to restart. With engine not operating, his aircraft lost 500 ft of altitude. Pilot continued on to destination. He did tell ZAU about his engine problem when it had stopped but he never declared an emergency. Upon further inspection at destination field, it was found that of the moving doors that carburetor heat flows through, one door operated properly while the other one did not move at all.

Original NASA ASRS Text

Title: AN SMA MOONEY FLIES THROUGH ZAU, IL, AIRSPACE SUFFERS ENG STOPPAGE DUE TO ICE. PLT IS ABLE TO RESTART ENG AND CONTINUED ON TO DEST.

Narrative: AFTER NUMEROUS BRIEFINGS, DEPARTED INTO LOW CEILING, DRIZZLE ABOVE FREEZING, ENCOUNTERED LIGHT TO MODERATE ICE DURING CLBOUT. BRIEFINGS SHOWED MULTIPLE LAYERS AND NO ICE BEING RPTED. AT 12000 FT PULLED CARB HEAT IN VISIBLE MOISTURE. ENG QUIT RUNNING FROM CARB HEAT APPLICATION. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: PLT WAS FLYING 1960 MOONEY. ENG HAS NORMAL CARBURETION. THE FLT WAS FROM DTW, MI, TO ANOTHER ARPT IN THE RFD, IL, AREA. PLT HAD LOOKED IN THE FSS BRIEFINGS FOR INDICATIONS THAT THERE WERE CLR AREAS WITH NO ICING. HE FLEW IN CLR AREAS UNTIL HE WAS IN SBN AREA. AT THAT LOCATION HE GOT INTO SOME CLOUDS AND ICING BEGAN TO FORM. WHEN HE APPLIED CARB HEAT, HE FELT A CLUNK LIKE SOUND GO THROUGH THE ENG. THEN, THE ENG STARTED TO RUN ROUGH, HE PUSHED CARB HEAT BACK IN AND THE ENG RAN SMOOTH FOR A SHORT WHILE THEN ROUGH. PLT AGAIN APPLIED CARB HEAT AND ENG QUIT. PLT MOVED CARB HEAT TO OFF POS AND THE ENG WAS ABLE TO RESTART. WITH ENG NOT OPERATING, HIS ACFT LOST 500 FT OF ALT. PLT CONTINUED ON TO DEST. HE DID TELL ZAU ABOUT HIS ENG PROB WHEN IT HAD STOPPED BUT HE NEVER DECLARED AN EMER. UPON FURTHER INSPECTION AT DEST FIELD, IT WAS FOUND THAT OF THE MOVING DOORS THAT CARB HEAT FLOWS THROUGH, ONE DOOR OPERATED PROPERLY WHILE THE OTHER ONE DID NOT MOVE AT ALL.

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.

An small aircraft mooney flies through ZAU, il, airspace suffers engine stoppage due to ice. Pilot is able to restart engine and continued on to destination.