Stinson 108-2 N373C

Summary

On 3 August 2009 at about 19:15 local time, a Stinson 108-2 registered N373C, operated by Charles R. McDermott, was involved in an accident near Salt Lake City, Utah, United States. 2 people were on board and one had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

3 August 2009 at 19:15

Classification

Accident

Location

Salt Lake City, Utah, United States

Coordinates

40.7614, -111.9711

Aircraft

Stinson 108-2

Registration

N373C

Category

Airplane

Engines

1

Operator

Charles R. McDermott

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Rock Springs → Tooele

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

WPR09LA382

1 person had minor injuries.

A total loss of engine power during cruise flight due to the failure of the crankshaft gear.

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

Read the full NTSB narrative

During cruise flight, the pilot experienced a complete loss of engine power and initiated a forced landing to an open field. During the landing roll, the airplane encountered a ditch, which resulted in substantial damage to the airplane's fuselage. A Federal Aviation Administration airworthiness inspector reported damage to the accessory section of the engine. A subsequent postaccident examination of the engine by a second inspector revealed that the crankshaft gear had failed, which resulted in significant damage to all the gears in the accessory section of the engine. Over 50 percent of the crankshaft gear could not be found, and the crankshaft gear appeared to have fractured and failed through both dowel pin slots. The engine was manufactured in 1947 and was the original engine installed by the factory at the time of the airframe's manufacture. The engine had accumulated 2,520 hours time in service and was overhauled 147 hours prior to the accident.

Quoted verbatim from the NTSB record.