Casualties unknown

1999-09-26: Cessna 172N (N738ZQ) — Vacaville, CA

Vacaville, CA, US

On September 26, 1999, a Cessna 172N (registration N738ZQ) was involved in an aviation accident near Vacaville, CA. Investigators recorded the probable cause as: The pilot's inadequate compensation for the existing gusty crosswind condition and his subsequent failure to maintain directional control. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 related events involving the same aircraft type or operator are linked below.

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

A pilot experienced a wind shift during landing flare, leading to a go-around attempt, stall, ground impact, and veer off runway. The aircraft sustained wingtip, aileron, and spar damage. No mechanical issues were reported.

Accident Overview

A pilot conducting a landing approach experienced a sudden wind shift as the aircraft entered the flare, leading to a go-around attempt that resulted in a stall and ground impact. The aircraft sustained damage to the wingtip, aileron, and secondary spar. The pilot reported no mechanical problems before the event.

Sequence of Events

The pilot initially overflew the airport to observe the windsock, which indicated winds aligned with the runway. While initiating the landing flare, the windsock showed a shift of about 90 degrees from the left, relative to the aircraft's heading. The pilot initiated a go-around, during which the airplane turned left into the wind and began to stall. The aircraft impacted the ground and bounced. While still in a stalled configuration, the airplane veered left off the runway. The pilot held the nose down while accelerating in ground effect, then initiated a climb. He decided to return to the departure airport instead of attempting another landing.

Post-Accident Findings

After landing at the departure airport, the pilot noted damage to the wingtip, aileron, and secondary spar. He stated there were no mechanical issues with the airplane prior to the accident. Recorded weather data from the airport observation facility indicated winds from 350 degrees at 12 knots, gusting to 18 knots, at the time of the event. The pilot had obtained a DUATS weather briefing earlier that day.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X19816. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.