Casualties unknown

Multiengine Training Flight Go-Around Results in Ground Impact (N74SA)

LA Verne, CA, US

On March 31, 2004, a Piper PA34-200 (registration N74SA) was involved in an aviation accident near LA Verne, CA. Investigators recorded the probable cause as: the CFI 's failure to correctly reconfigure the right engine fuel selector, resulting in a total loss of power to that engine. 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 multiengine training flight, a CFI simulated an engine failure by turning off the right fuel selector. On go-around, the airplane failed to climb and struck terrain, with the CFI later noting he forgot to restore fuel flow.

Incident Overview

A multiengine training flight ended with a collision with terrain after a go-around attempt. The certified flight instructor (CFI) had simulated an engine failure by turning the right engine fuel selector to the "off" position. The student pilot correctly identified the failed engine and flew the airplane accordingly.

Sequence of Events

On short final, approximately 100 feet above ground level, the airplane was high and not properly aligned with the runway. The CFI decided to execute a go-around, and the student applied full throttle to both engines. However, the student was unable to maintain airspeed and establish a positive rate of climb. The CFI announced he would take over the controls and attempted to continue the go-around. The airplane would not climb and drifted to the right, crossing another runway. It continued in a gradual descent, and the stall warning horn sounded. The right wing then impacted terrain, causing the airplane to spin around on the ground.

Instructor's Account

The CFI reported that he had become distracted and did not remember to turn the right engine fuel selector back to the "on" position after the student had identified the failed engine. He believed this was the reason the right engine did not respond to throttle input during the go-around. The CFI stated there were no preimpact mechanical malfunctions or failures with the airplane.

Frequently asked questions

What happened in the 31 Mar 2004 Piper PA34-200 accident near LA Verne, CA?

During a multiengine training flight, a CFI simulated an engine failure by turning off the right fuel selector. On go-around, the airplane failed to climb and struck terrain, with the CFI later noting he forgot to restore fuel flow.

What aircraft was involved and where did it happen?

The accident on 31 Mar 2004 involved a Piper PA34-200, registration N74SA, at LA Verne, CA.

What was the probable cause of the accident?

the CFI 's failure to correctly reconfigure the right engine fuel selector, resulting in a total loss of power to that engine. Also causal was the CFI's failure to maintain direction control of the airplane and an adequate airspeed, which led to the airplane stalling and colliding with terrain. A factor in the…

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20040427X00517. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.