Pilot Debrief

GRUMMAN ACFT ENG COR-SCHWEIZER G-164A near Kimball, NE — 2009-09-08

Final reportCEN09LA574
Sign in to save
Date
2009-09-08
Location
Kimball, NE, USA
Aircraft
GRUMMAN ACFT ENG COR-SCHWEIZER G-164A
Registration
N6761Q
Category
Airplane
Highest injury
None
Fatalities
0
Phase of flight
Maneuvering

Probable cause

A loss of engine power due to improper installation of an oil line fitting resulting in oil depletion.

NTSB narrative

The commercial pilot was performing the last pass of an aerial application flight when the engine "backfired" and surged several times. The pilot pulled the emergency fuel shut-off handle and attempted to force land in a field. The airplane overshot the intended landing area and collided with a fence before impacting terrain. A post-crash inspection of the engine revealed that an oil line fitting had been improperly installed resulting in a depletion of oil. An inspection of the airframe did not reveal any anomalies.

Analysis

Primary failure mode
Engine power loss
First missed decision gate
Pilot could have checked engine before last pass to prevent power loss.

NTSB coding

Evidence available

  • 1 docket document
View NTSB final reportView NTSB docket

Docket documents1

Related mishaps