Schweizer G164B N48559

Summary

On 29 May 1996 at about 16:30 local time, a Schweizer G164B registered N48559 was involved in an accident near Moscow, Idaho, 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

29 May 1996 at 16:30

Classification

Accident

Location

Moscow, Idaho, United States

Coordinates

46.7097, -116.9098

Aircraft

Schweizer G164B

Registration

N48559

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 137: Agricultural

Purpose of flight

Aerial Application

Phase of flight

Not recorded

Route

Unknown → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

SEA96LA103

Nobody was injured.

inflight loss of an unsecured access plug from the engine crankcase, which resulted in a loss of engine oil and a forced landing. Factors relating to the accident were: hilly terrain, and foreign material (engine oil) on the windscreen which limited forward visibility.

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

Read the full NTSB narrative

The pilot reported that while conducting an agricultural aerial application flight, the windscreen suddenly became obscured by smoke and oil. Operating over hilly terrain with poor forward visibility through the windscreen, he attempted a forced landing on a ridge top. The airplane was substantially damaged in the forced landing. FAA inspectors who examined the airplane after the accident reported that they found an access plug missing from the front of the crankcase of the aircraft's Pratt & Whitney R-1340 radial engine.

Quoted verbatim from the NTSB record.