Cessna 172 N734GB

Summary

On 18 April 2023 at about 22:20 local time, a Cessna 172 registered N734GB was involved in an accident near London, Ohio, United States. 2 people were on board and 2 died. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

18 April 2023 at 22:20

Classification

Accident

Location

London, Ohio, United States

Nearest airport

Madison County (UYF)

Coordinates

39.9324, -83.4692

Aircraft

Cessna 172

Registration

N734GB

Category

Airplane

Year built

1977

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

ERA23FA200

2 people died.

The flight instructor’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall at an altitude too low for recovery.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The accident occurred during what was likely the student pilot’s first instructional flight. According to ADS-B data, the airplane was on final approach to the runway for landing in gusty wind conditions, when the accident occurred. The airplane’s calculated airspeed during the final approach was decelerating, and about 150 ft from the runway threshold, it was about 18 knots above its published stall speed given its configuration. The airplane subsequently impacted the ground about 1 ft from the edge of the runway in a near-vertical nose-down, left-wing-low attitude and came to rest inverted. Postaccident examination of the airplane revealed that the damage signatures observed on the wreckage were consistent with a relatively low energy impact, with the majority of the damage being to the forward portion of the airframe. The engine and propeller were compressed aft and up into the fuselage. The flaps were found extended to the 40° position. No evidence of any preimpact mechanical malfunctions or failures were identified that would have precluded normal operation of the airplane. The observed impact signatures were indicative of the airplane encountering an aerodynamic stall at low altitude. Postaccident toxicological testing showed that the student pilot had used the antidepressant medication venlafaxine. This medication and some conditions it may be used to treat have some potential to impair performance. However, considering the accident circumstances, including the student pilot’s limited baseline piloting skill and experience, his limited flight safety responsibilities on the first instructional flight, and the presence of the qualified flight instructor, it is unlikely that the student pilot’s venlafaxine use, or any associated underlying condition, contributed to the accident. Given the decelerating airspeed trend observed in the recorded data and the impact attitude of the airplane, it is likely that the flight instructor did not ensure that sufficient airspeed was maintained and the airplane’s critical angle of attack was exceeded, which resulted in an aerodynamic stall while on final approach to land.

Quoted verbatim from the NTSB record.