Casualties unknown

1982-07-18: Beech A36 (N4600S) — Eagles Associates — Grand Canyon, AZ

Grand Canyon, AZ, US

On July 18, 1982, a Beech A36 (registration N4600S) operated by Eagles Associates was involved in an aviation accident near Grand Canyon, AZ. Investigators recorded the probable cause as: The pilot's failure to maintain adequate airspeed during takeoff resulting in a stall and loss of control, exacerbated by high density altitude conditions. 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

An aircraft dragged a wingtip and swerved off the runway during an aborted takeoff at high density altitude. The pilot reported inability to climb and lost control while lowering landing gear.

What happened

The aircraft experienced a critical failure during the initial phase of flight, resulting in a loss of directional control. During the takeoff roll, the airplane dragged its wingtip along the pavement surface. As the situation deteriorated, the aircraft swerved off the runway and came to rest outside the paved area.

The pilot reported that he was unable to maintain a positive rate of climb after liftoff. In an attempt to abort the takeoff, the pilot lowered the landing gear. This action coincided with the loss of control of the aircraft.

The investigation

Examination of the circumstances revealed that the density altitude at the time of the accident was 8,200 feet. This high density altitude significantly reduces engine performance and lift generation capabilities. The weather conditions were visual meteorological conditions (VMC). No flight plan had been filed for this operation.

Findings

The primary factors contributing to the accident were the high density altitude and the pilot's decision to continue the takeoff despite insufficient climb performance. The inability to maintain climb led to the abort maneuver, which resulted in the loss of control and runway excursion.

Probable cause

The pilot's failure to maintain adequate airspeed during takeoff resulting in a stall and loss of control, exacerbated by high density altitude conditions.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20020917X03585. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.