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ASN Wikibase Occurrence # 45255
Last updated: 19 August 2020
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Type:Silhouette image of generic BE36 model; specific model in this crash may look slightly different
Beechcraft A36 Bonanza
Owner/operator:Morris Hancock Flying Club
Registration: N1636W
C/n / msn: E348
Fatalities:Fatalities: 3 / Occupants: 3
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Location:New Vienna, IA -   United States of America
Phase: En route
Departure airport:Aurora, IL (ARR)
Destination airport:Morris, MN (MOX)
Investigating agency: NTSB
The airplane impacted terrain during an uncontrolled descent from cruise flight about 22 nautical miles southwest of an en route airport. Just prior to a loss of radar/radio contact with air traffic control, the pilot was initiating a climb to a higher altitude from which he previously descended where he reported light rime icing. He reported that he wanted to get between what he described as layers. Weather data and information indicated that the airplane encountered occasional light rime or mixed icing after the pilot reported light rime icing and later encountered a patch of supercooled large droplets and accumulated moderate to severe icing before its uncontrolled descent. An AIRMET for occasional moderate rime or mixed icing was issued for an area that included the accident route of flight.

The pilot logged a total actual instrument time 39.7 hours since he received his instrument rating in 1982. He logged 2.7 hours of instrument time in the last 90 days and 1.9 hours in the last 30 days before the accident.

The airplane was not equipped with a wing deice system and did not have a current pitot static system check. Examination of the wreckage did not reveal any anomalies which would have precluded normal operation.
Probable Cause: The improper planning/decision by the pilot to fly into forecast icing conditions with an airplane not equipped with a certified deice system. The continued flight in known icing conditions and the flight to an alternate destination not performed by the pilot were additional causes. A contributing factor was the pilot's lack of qualification as an air carrier.



Revision history:

28-Oct-2008 00:45 ASN archive Added
21-Dec-2016 19:24 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
08-Dec-2017 18:26 ASN Update Bot Updated [Source, Narrative]

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