Commuter light transport threw a deicer boot during climb. In-flight engine shut down return land.

Attributes
ACN	152802
Time
Date	199007
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mke
State Reference	WI
Altitude	msl bound lower : 5000 msl bound upper : 5000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mke
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : commercial pilot : instrument
Experience	flight time last 90 days : 210 flight time total : 2050
ASRS Report	152802
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	flight crew : overcame equipment problem flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

After taking off from runway 19R, we turned left to 090 degree and upon passing through 5000', the left engine began to vibrate. The captain immediately retarded the left engine power lever to flight idle and vibration continued. We leveled off at 5000' and notified ATC of our problem, the left engine was then shut down by the feather lever. Following our company manual, we notified ATC of the precautionary engine shut down, declared an emergency and requested emergency ground equipment. The passengers were notified of the situation. After landing, passengers were briefed again and seemed not to be upset. The problem was a deicer boot on the left engine propeller, that had been replaced before our flight, had come off.

Original NASA ASRS Text

Title: COMMUTER LTT THREW A DEICER BOOT DURING CLIMB. INFLT ENGINE SHUT DOWN RETURN LAND.

Narrative: AFTER TAKING OFF FROM RWY 19R, WE TURNED L TO 090 DEG AND UPON PASSING THROUGH 5000', THE L ENG BEGAN TO VIBRATE. THE CAPT IMMEDIATELY RETARDED THE L ENG PWR LEVER TO FLT IDLE AND VIBRATION CONTINUED. WE LEVELED OFF AT 5000' AND NOTIFIED ATC OF OUR PROB, THE L ENG WAS THEN SHUT DOWN BY THE FEATHER LEVER. FOLLOWING OUR COMPANY MANUAL, WE NOTIFIED ATC OF THE PRECAUTIONARY ENG SHUT DOWN, DECLARED AN EMER AND REQUESTED EMER GND EQUIP. THE PAXS WERE NOTIFIED OF THE SITUATION. AFTER LNDG, PAXS WERE BRIEFED AGAIN AND SEEMED NOT TO BE UPSET. THE PROB WAS A DEICER BOOT ON THE L ENG PROP, THAT HAD BEEN REPLACED BEFORE OUR FLT, HAD COME OFF.

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.