Cessna 150M N704LE

Summary

On 8 October 2016 at about 23:40 local time, a Cessna 150M registered N704LE was involved in an accident near Beasley, Texas, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

8 October 2016 at 23:40

Classification

Accident

Location

Beasley, Texas, United States

Nearest airport

Wharton Regional (ARM)

Coordinates

29.4453, -95.9644

Aircraft

Cessna 150M

Registration

N704LE

Category

Airplane

Year built

1976

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

Wharton → Sugar Land

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CEN17LA014

Nobody was injured.

The No. 2 cylinder exhaust valve being stuck in the “full open” position due to carbon deposits, which resulted in a total loss of engine power.

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

Read the full NTSB narrative

The student pilot reported that he was returning from a solo flight when the engine "started failing." The engine speed decreased to about 1,500 rpm with a "significant" vibration. The pilot's efforts to restore engine power were unsuccessful, and the engine ultimately lost total power. He subsequently conducted a forced landing to a plowed field, during which the airplane nosed over. A postaccident examination of the engine revealed that the No. 2 cylinder exhaust valve was stuck in the "full open" position. Disassembly of the cylinder revealed that the exhaust valve stem exhibited carbon deposits consistent with the stuck valve condition. No other engine anomalies were noted.

Quoted verbatim from the NTSB record.