Accident Navion A N4893K, Wednesday 22 February 1984

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Date:	Wednesday 22 February 1984
Time:	15:15 LT
Type:	Navion A
Owner/operator:	Private
Registration:	N4893K
MSN:	NAV4-1893
Total airframe hrs:	3341 hours
Engine model:	Continental E-185-9
Fatalities:	Fatalities: 0 / Occupants: 2
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	Newport, MN - United States of America
Phase:	Landing
Nature:	Private
Departure airport:	Newport, MN
Destination airport:
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
THE ACFT ENGINE FAILED WHEN THE PLT APPLIED CARBURATOR HEAT TO TRY TO 'CURE' A ROUGH RUNNING ENGINE. POST ACCIDENT INVESTIGATION REVEALED A HOLE IN THE LEFT MUFFLER AND SHROUD ALLOWING BURNT EXHAUST GASES TO ENTER THE CARBURETOR WHEN CARBURETOR HEAT WAS APPLIED.

Probable Cause:

Accident investigation: