Pilot Debrief

GRUMMAN ACFT ENG COR-SCHWEIZER G-164A near Monette, AR — 2011-08-29

Final reportCEN11LA610
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Date
2011-08-29
Location
Monette, AR, USA
Aircraft
GRUMMAN ACFT ENG COR-SCHWEIZER G-164A
Registration
N48378
Category
Airplane
Highest injury
None
Fatalities
0
Phase of flight
Initial climb

Probable cause

The fracture of the throttle cable in tensile overstress because of wear damage, which resulted in the partial loss of engine power.

NTSB narrative

While climbing out from a private airstrip, the airplane experienced a partial loss of power at 150 feet, and the pilot executed an emergency forced landing in a cotton field. The airplane touched down in the field and subsequently nosed over, coming to rest inverted. The throttle cable was found fractured between the engine and the firewall. Laboratory examination determined that the cable fractured in tensile overstress associated with wear damage. The wear damage is consistent with a sharp bend in the cable trajectory. It is likely that the push-pull operation of the throttle cable may have resulted in further damage to the cable.

Analysis

Primary failure mode
Engine power loss
First missed decision gate
Pilot could have aborted takeoff after engine lost partial power.

NTSB coding

Evidence available

  • Photos
  • 4 docket documents
View NTSB final reportView NTSB docket

Docket documents4

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