Cessna 172R N9514P

Summary

On 14 June 1998 at about 17:30 local time, a Cessna 172R registered N9514P, operated by Northwest Aircraft Rental, was involved in an accident near Independence, Oregon, United States. 2 people were 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

14 June 1998 at 17:30

Classification

Accident

Location

Independence, Oregon, United States

Nearest airport

Independence State (7S5)

Coordinates

44.8296, -123.1991

Aircraft

Cessna 172R

Registration

N9514P

Category

Airplane

Engines

1

Operator

Northwest Aircraft Rental

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Aurora → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

SEA98LA096

Nobody was injured.

A loss of power due to fatigue failure and cracking of an engine cylinder barrel.

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

Read the full NTSB narrative

The pilot reported that during the climb-out following a touch-and-go landing, the engine began to run rough, followed by smoke/oil spray issuing from the engine compartment. Shortly thereafter, he heard a loud bang and executed a forced landing in deep grass and vegetation. During the landing roll, the airplane nosed down, and the left wing was damaged. FAA on site examination revealed oil pooled beneath the engine and oil spray within the engine compartment. The examination also revealed a crack in the steel barrel of the #4 cylinder. The #4 cylinder was removed for analysis. Optical examination of the apparent fracture surfaces on cylinder #4 uncovered fracture markings, arrest lines and deformation patterns consistent with fatigue progression over the entire surface of the original crack. The cause of the metal smearing and hairline cracks most likely was induced during the turning operation when cutting tools had become worn. It was concluded that the surface features were of a nature non-detectable by existing non-destructive testing processes.

Quoted verbatim from the NTSB record.