Casualties unknown

1996-04-11: Cessna 177B (N35207) — Cheyenne, WY

Cheyenne, WY, US

On April 11, 1996, a Cessna 177B (registration N35207) was involved in an aviation accident near Cheyenne, WY. Investigators recorded the probable cause as: the pilot-in-command's improper decision to take off into deteriorating weather conditions (including turbulence, gusty winds, and an advancing thunderstorm and associated precipitation) when the airplane was overweight and when the density altitude was… 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

During a transcontinental record attempt, a stall occurred after takeoff with a 7-year-old trainee, her father, and the pilot-in-command onboard. The aircraft, loaded 84 pounds over maximum weight, encountered thunderstorms and windshear.

Flight Details

A crew consisting of a pilot-in-command, a 7-year-old trainee (passenger), and her father (passenger) were conducting a transcontinental record attempt. The planned flight covered 6,660 miles over 8 consecutive days. The first leg, approximately 8 hours, had been completed the previous day with considerable media attention.

Preflight and Weather

On the morning of the second day, the pilot-in-command and the trainee participated in media interviews, preflighted the aircraft, and loaded it. The pilot received a weather briefing advising moderate icing conditions, turbulence, IFR flight precautions, and a cold front near the departure airport. The aircraft taxied in rain for takeoff on runway 30. During taxi, the pilot acknowledged receiving information that the wind was from 280 degrees at 20 knots gusting to 30 knots, and that a departing Cessna 414 pilot had reported moderate low-level windshear of plus or minus 15 knots.

Departure and Accident

The aircraft departed on runway 30 toward a nearby thunderstorm and began a gradual turn to an easterly heading. Witnesses described the climb rate and speed as slow, and observed the aircraft enter a roll and descent consistent with a stall. The density altitude at the airport was 6,670 feet. The aircraft's gross weight was calculated to be 84 pounds over the maximum limit at the time of impact.

Additional Information

Further details are available in the NTSB/AAR-97/02 report.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X05676. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.