Casualties unknown

Aircraft Crashes After Takeoff Following Pilot's Failure to Retract Flaps (N1495V)

San Jose, CA, US

On May 6, 1990, a Cessna 172M (registration N1495V) was involved in an aviation accident near San Jose, CA. Investigators recorded the probable cause as: The pilot failed to retract the flaps before takeoff. 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 2026-07-04Data APIEditorial standards

A pilot failed to retract the flaps before takeoff, leading to a stall and crash. The aircraft struck a transmission line, solar collector, and fence. Post-crash examination found the flaps had been retracted.

Accident Sequence

According to the investigation, the pilot did not retract the flaps before initiating takeoff. After becoming airborne, she observed that the aircraft was not gaining airspeed or altitude. The tower controller informed her that the flaps appeared incorrect. The pilot stated that she reached to check the flap switch but could not recall any further details about the accident.

Ground witnesses reported that the aircraft was climbing with the flaps extended following takeoff. After reaching an altitude of approximately 100 to 200 feet above ground level, the aircraft stalled and descended. During the crash sequence, it struck a transmission line, a solar collector on a house roof, and a fence.

Post-Crash Examination

An examination of the aircraft after the accident revealed that the flaps had been retracted by the time the aircraft impacted the ground.

Probable cause

The pilot failed to retract the flaps before takeoff.

Frequently asked questions

What happened in the 6 May 1990 Cessna 172M accident near San Jose, CA?

A pilot failed to retract the flaps before takeoff, leading to a stall and crash. The aircraft struck a transmission line, solar collector, and fence. Post-crash examination found the flaps had been retracted.

What aircraft was involved and where did it happen?

The accident on 6 May 1990 involved a Cessna 172M, registration N1495V, at San Jose, CA.

What was the probable cause of the accident?

The pilot failed to retract the flaps before takeoff.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X23169. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.