Cessna 150 N7948F

Summary

On 16 October 2016 at about 18:30 local time, a Cessna 150 registered N7948F was involved in an accident near Stockbridge, Georgia, United States. 2 people were on board and 2 were seriously injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

16 October 2016 at 18:30

Classification

Accident

Location

Stockbridge, Georgia, United States

Nearest airport

Berry Hill (7GA7)

Coordinates

33.5331, -84.1719

Aircraft

Cessna 150

Registration

N7948F

Category

Airplane

Year built

1966

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Stockbridge → Canton

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

ERA17LA015

2 people were seriously injured.

A partial loss of engine power due to a stuck exhaust valve and the pilot's exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall. 

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

Read the full NTSB narrative

The private pilot completed an engine run-up before the personal flight with no anomalies noted. The pilot rotated the airplane about halfway down the runway. He stated that the airplane was not climbing normally during the takeoff, and a ground witness heard the engine making "popping" noises. The pilot attempted to clear trees off the end of the runway in order to make a controlled landing in the field on the other side, but the airplane impacted the field; the pilot was unable to recall any events that happened after passing over a tree. Examination of the wreckage revealed that the airplane displayed impact damage that included aftward crushing of the airplane's nose and the leading edges of both wings, which was consistent with an aerodynamic stall and impact with the ground in a nose-low attitude. Examination of the engine revealed the No. 4 cylinder's exhaust valve was stuck in the fully open position and coated in a carbon-like material. The stuck valve likely reduced engine power and airplane performance during the takeoff, which resulted in an aerodynamic stall.

Quoted verbatim from the NTSB record.