Grumman-Schweizer G-164B N6524K

Summary

On 25 May 1999 at about 23:30 local time, a Grumman-Schweizer G-164B registered N6524K, operated by Central Valley Aviation, was involved in an accident near Buxton, North Dakota, 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

25 May 1999 at 23:30

Classification

Accident

Location

Buxton, North Dakota, United States

Nearest airport

Central Valley Aviation (NA81)

Coordinates

47.6001, -97.0904

Aircraft

Grumman-Schweizer G-164B

Registration

N6524K

Category

Airplane

Engines

1

Operator

Central Valley Aviation

Operating rule

Part 137: Agricultural

Purpose of flight

Aerial Application

Phase of flight

Not recorded

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CHI99LA162

Nobody was injured.

the number one cylinder's separation, the pilot's visual lookout not possible through the oil given off by the number one cylinder, and the embankment. A factor in the accident was the oil.

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

Read the full NTSB narrative

The pilot said the engine began to run rough during cruise. Then the engine blew smoke and oil and the windshield became covered with oil. The pilot turned the airplane towards the airport. On the approach to runway 09, the pilot had no visibility through the oil and the airplane had run off a road leading to the runway's centerline and an embankment in the safety area before the approach end of runway 09 during his forced landing. The airplane came to rest inverted next to the embankment. The number one cylinder head was found separated from its cylinder and was inspected. The inspection revealed no indications of preexisting cracks in the cylinder head. The separation occurred in the combustion dome between the cylinder head and the screw on cylinder barrel. The cylinder head revealed marks and dents consistent with piston ring or piston crown contact.

Quoted verbatim from the NTSB record.