Casualties unknown

2004-01-22: Beech F33A (N33HY) — Shoshone, CA

Shoshone, CA, US

On January 22, 2004, a Beech F33A (registration N33HY) was involved in an aviation accident near Shoshone, CA. Investigators recorded the probable cause as: the CFI's failure to verify the wind direction prior to takeoff, which resulted in his failure to attain an adequate airspeed and led to an inadvertent stall-mush. The short runway and variable winds were factors. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards

A CFI and private pilot experienced a takeoff accident when the airplane failed to accelerate and was forced into flight at low airspeed, resulting in a stall and ground impact with the nose gear collapsing and the airplane inverting.

Accident Details

The airplane collided with the ground during takeoff and came to rest inverted. The nose gear collapsed after touchdown, and the tail came over the top, causing the inversion. The runway was 2,380 feet long and 30 feet wide.

Pilot Actions

A certified flight instructor (CFI) and a private pilot undergoing familiarization training were on board. Prior to the accident takeoff, the windsock indicated variable winds from 290 degrees. The CFI and student discussed downhill and downwind takeoffs. After preflight, they taxied to the runway. During takeoff, the airplane did not accelerate as expected, and the remaining runway was insufficient to abort. The CFI continued the takeoff and "forced the aircraft to fly at a very low airspeed." The airplane was at a very high angle of attack, and the CFI realized it would not accelerate, so he extended flaps to 15 degrees to lower the stall speed. Despite efforts, the airplane settled to the ground with the landing gear extended. After touchdown, the CFI reduced power, and the nose gear collapsed.

Environmental Factors

Other pilots at the airport indicated the wind had been "on and off" all morning and had been as high as 15 to 20 knots. The CFI believed the wind picked up from engine start to the takeoff roll but did not recheck the windsock. No mechanical malfunctions were noted with the airplane prior to the accident. The airplane was equipped with a "throw-over" yoke positioned in front of the CFI, who was the flying pilot.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20040306X00278. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.