Cessna 182Q N759LV

Summary

On 21 July 2015 at about 20:46 local time, a Cessna 182Q registered N759LV, operated by Interstate Aviation Inc, was involved in an accident near Prichard, Idaho, 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

21 July 2015 at 20:46

Classification

Accident

Location

Prichard, Idaho, United States

Coordinates

47.6781, -115.9358

Aircraft

Cessna 182Q

Registration

N759LV

Category

Airplane

Year built

1978

Engines

1

Operator

Interstate Aviation Inc

Operating rule

Part 91: General Aviation

Purpose of flight

Aerial Observation

Phase of flight

Not recorded

Route

Coeur d'Alene → Coeur d'Alene

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

WPR15LA220

Nobody was injured.

A total loss of engine power due to the fatigue failure of the No. 6 cylinder piston pin.

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

Read the full NTSB narrative

The commercial pilot reported that, during cruise on the fire reconnaissance flight, he heard a loud pop, followed by oil covering the windscreen; the engine subsequently experienced a total loss of power. Despite the pilot's attempts, the engine would not restart, and he initiated a forced landing to an open field. During the landing roll, the nose landing gear separated from the airplane and the right wing impacted the ground. Postaccident examination of the engine revealed that the bottom portion of the No. 6 cylinder piston, piston pin, and connecting rod cap were separated. Metallurgical examination of the piston pin revealed evidence of a fatigue fracture originating from the outside of the pin that progressed inward until the final fracture along the middle of the pin cross-section. The fatigue crack initiation site did not reveal any material or mechanical defects, such as pits, voids, or inclusions. Examination of the piston, connecting rod bolts, and connecting rod cap revealed fractures consistent with overstress. No additional anomalies were noted with the engine.

Quoted verbatim from the NTSB record.