LAX04CA173
2004-03-31 · La Verne, California, United States · None · 1 aircraft · Status: Completed
Airport KPOC
N74SA has since been reassigned. It is now registered to a different aircraft (CIRRUS DESIGN SR22, built 2006), which was not involved in this event.
Aircraft involved
Probable cause & findings
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 accident was the CFI's diverted attention.
Factual narrative
On March 31 2004, about 1255 Pacific standard time, a Piper PA-34-200, N74SA, collided with terrain while attempting a go-around at Brackett Field Airport, La Verne, California. Air Desert Pacific was operating the airplane under the provisions of 14 CFR Part 91. The certified flight instructor (CFI) and student pilot were not injured; the airplane sustained substantial damage. The local instructional flight originated from La Verne about 1150. Day visual meteorological conditions prevailed, and a flight plan had not been filed. In a written statement, the CFI reported that he was overseeing the student's landing attempt on runway 26R. While inbound, about 4,000 feet mean sea level, the CFI turned the right engine fuel selector to the "off" position, in an effort to simulate an engine failure. The student followed the proper procedure by correctly identifying the failed engine and positioning the left throttle, mixture, and propeller controls in their full forward position, and the right throttle control in the idle position. While on the downwind portion of the traffic pattern, the air traffic control tower cleared them to land on runway 26L. On final approach, the student configured the airplane with full flaps and the landing gear in the extended position. On short final, about 100 feet above ground level, the airplane was high and not properly aligned with the runway. The CFI opted to make a go-around, and the student inputted full throttle on both engines. The student was unable to maintain airspeed and establish a positive rate of climb. The CFI communicated that he would take over the controls, and attempted to continue the go-around. The airplane would not climb and drifted to the right, across runway 26R. The airplane continued in a gradual decent, and the stall warning horn sounded. The right wing impacted terrain, and the airplane spun around on the ground. The CFI stated that he had become distracted, and did not remember to turn the fuel selector back to the "on" position after the student had identified the failed engine while inbound. He thought this was the reason that the right engine did not respond to the throttle input during the go-around. He added that it was possible that he could not maintain directional control of the airplane because the student may have failed to relinquish the controls. The CFI reported no preimpact mechanical malfunctions or failures with the airplane. The airplane collided with terrain while the pilot was attempting a go-around during a multiengine training flight. The certified flight instructor (CFI) turned the right engine fuel selector to the "off" position, in an effort to simulate an engine failure. The student followed the proper procedure by correctly identifying the failed engine and flew the airplane accordingly. On short final, about 100 feet above ground level, the airplane was high and not properly aligned with the runway. The CFI opted to make a go-around, and the student inputted full throttle on both engines. The student was unable to maintain airspeed and establish a positive rate of climb. The CFI communicated that he would take over the controls, and attempted to continue the go-around. The airplane would not climb and drifted to the right, across another runway. The airplane continued in a gradual decent, and the stall warning horn sounded. The right wing impacted terrain, and the airplane spun around on the ground. The CFI stated that he had become distracted, and did not remember to turn the fuel selector back to the "on" position after the student had identified the failed engine. He thought this was the reason that the right engine did not respond to the throttle input during the go-around. The CFI reported no preimpact mechanical malfunctions or failures with the airplane. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2004_LAX04CA173.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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