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ASN Wikibase Occurrence # 146586
Last updated: 20 June 2018
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Type:Silhouette image of generic S108 model; specific model in this crash may look slightly different
Stinson 108-3
Registration: N773C
C/n / msn: 108-3773
Fatalities:Fatalities: 0 / Occupants: 4
Aircraft damage: Substantial
Location:Field near Bruce Meadows Airport - U63, Stanley, ID -   United States of America
Phase: Initial climb
Departure airport:Stanley, ID (U63)
Destination airport:McCall, ID (MYL)
Investigating agency: NTSB
Before taking off from the 5,000-foot turf-dirt airstrip located at an altitude of 6,370 feet mean sea level, the pilot checked his performance charts and calculated that the density altitude was about 9,200 feet; this was 3,200 feet above the 6,000-foot maximum altitude listed in the takeoff performance charts. He also noted that at the time of departure, the wind was from 30 degrees at 10 knots, with gusts to 20 knots, which was close to a nearly direct tailwind for the takeoff from runway 23. The pilot indicated that the airplane was within 86 pounds of its maximum gross takeoff weight. When the airplane was about three-quarters of the way down the runway during the takeoff roll and not yet airborne, the pilot was about to abort the takeoff, but a gust of wind lifted the airplane in the air. The pilot thought the airplane would remain airborne, but when he could not get the airplane to climb as expected, he attempted to locate an open field to land in. However, the airplane subsequently encountered a downdraft, collided with a stand of trees, and came to rest inverted about 1.64 nautical miles from the departure end of the runway. A postaccident examination of the airplane and engine revealed no mechanical malfunctions or failures that would have precluded normal operation.
Probable Cause: The pilot’s inadequate preflight planning and decision to takeoff at a density altitude outside of the airplane’s takeoff performance envelope, with a tailwind, and near the airplane’s maximum gross weight, which resulted in the airplane’s inability to climb and clear trees.



Revision history:

02-Jul-2012 00:04 gerard57 Added
02-Jul-2012 20:45 Geno Updated [Time, Aircraft type, Registration, Cn, Location, Phase, Departure airport, Source, Damage, Narrative]
09-Aug-2012 11:19 harro Updated [Embed code, Damage]
31-Jan-2016 09:50 Topaz Updated [Phase, Departure airport, Source, Embed code, Narrative]
31-Jan-2016 09:53 Topaz Updated [Source]
31-Jan-2016 09:55 Topaz Updated [Narrative]
21-Dec-2016 19:28 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
27-Nov-2017 20:44 ASN Update Bot Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative]

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