Casualties unknown

Runway Excursion During Dual Instrument Training Flight (N7639G)

Santa Paula, CA, US

On January 26, 1999, a Cessna 172L (registration N7639G) was involved in an aviation accident near Santa Paula, CA. Investigators recorded the probable cause as: The instructor pilot's misjudged altitude and speed, which resulted in a failure to attain the proper touchdown point causing an overrun and collision with a block wall. A factor was the wet runway, which may have hindered brake effectiveness. 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

During a dual instrument instructional flight, the airplane departed the runway after landing, traveled through a muddy overrun area, and struck a block wall. Brake function checks found no discrepancies.

Incident Overview

A dual instrument instructional flight was conducted to practice basic instrument flight maneuvers. The pilot under instruction (PUI) was given a series of headings, altitudes, and airspeeds to fly. These vectors directed the airplane toward the airport traffic pattern. When the PUI removed his vision-restricting device, the airplane was on final approach, close to the runway and left of the centerline.

Pilot Actions

The PUI stated that if he were alone, he would have executed a go-around, and he communicated this to the instructor. The instructor then took control of the airplane and attempted a landing.

Landing and Runway Excursion

Witnesses reported that the touchdown occurred approximately halfway down the wet runway, which was 2,650 feet long. Both pilots indicated that they perceived no apparent braking action, particularly from the right brake. The airplane departed the runway, traveled through a muddy overrun area, and then moved back onto a taxiway before striking a block wall.

Evidence and Post-Accident Inspection

Two skid marks were observed both before and after the overrun area. Following the accident, a functional check of the brakes revealed no discrepancies.

Frequently asked questions

What happened in the 26 Jan 1999 Cessna 172L accident near Santa Paula, CA?

During a dual instrument instructional flight, the airplane departed the runway after landing, traveled through a muddy overrun area, and struck a block wall. Brake function checks found no discrepancies.

What aircraft was involved and where did it happen?

The accident on 26 Jan 1999 involved a Cessna 172L, registration N7639G, at Santa Paula, CA.

What was the probable cause of the accident?

The instructor pilot's misjudged altitude and speed, which resulted in a failure to attain the proper touchdown point causing an overrun and collision with a block wall. A factor was the wet runway, which may have hindered brake effectiveness.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001204X00084. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.