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ASN Wikibase Occurrence # 58494
Last updated: 13 October 2020
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Type:Silhouette image of generic AC90 model; specific model in this crash may look slightly different
Rockwell Aero Commander 690C Jetprop 840
Owner/operator:J-W Operating Company
Registration: N840NK
C/n / msn: 11734
Fatalities:Fatalities: 3 / Occupants: 3
Aircraft damage: Written off (damaged beyond repair)
Location:4 miles north of Wray Municipal Airport, Co -   United States of America
Phase: Approach
Departure airport:Denver, CO (KAPA)
Destination airport:Wray, CO (2V5)
Investigating agency: NTSB
The airplane was "cleared for the approach" and approximately eight minutes later was observed emerging from the clouds, flying from west to east. Witnesses reported that the nose of the airplane dropped and the airplane subsequently impacted terrain in a near vertical attitude. Impact forces and a post impact fire destroyed the airplane. Examination of the airplane's systems revealed no anomalies. Weather at the time of the accident was depicted as overcast with three to six miles visibility. An icing probability chart depicted the probability for icing during the airplane's descent as 76 percent. AIRMETS for moderate icing and instrument meteorological conditions had been issued for the airplaneís route of flight. Another airplane in the vicinity reported light to moderate mixed icing. It could not be confirmed what information the pilot had obtained in a weather briefing, as a briefing was not obtained through a recorded source. A weight and balance calculation revealed that the accident airplane was 1,000 pounds over gross weight at the time of departure and 560 pounds over gross weight at the time of the accident. It was estimated that the center of gravity was at or just forward of design limitations.
Probable Cause: The pilotís failure to maintain aircraft control during the approach resulting in an aerodynamic stall and subsequent impact with terrain. Contributing to the accident was the pilotís improper preflight planning and conditions conducive for structural icing.




(c) NTSB

Revision history:

15-Jan-2009 11:11 Dmitriy Added
17-Jan-2009 23:07 dhop737 Updated
19-Jan-2009 21:01 dhop737 Updated
20-Jan-2009 12:21 harro Updated
24-Aug-2009 12:31 harro Updated
10-Feb-2012 04:19 Gwydd Updated [Aircraft type, Source]
21-Dec-2016 19:25 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
01-Dec-2017 11:40 ASN Update Bot Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative]

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