Pilot Debrief

AYRES CORPORATION S2R-T41 near Coy, AR — 2013-07-10

Final reportCEN13LA414
Sign in to save
Date
2013-07-10
Location
Coy, AR, USA
Aircraft
AYRES CORPORATION S2R-T41
Registration
N2239B
Category
Airplane
Highest injury
Minor
Fatalities
0
Phase of flight
Landing

Probable cause

The propeller’s uncommanded reverse thrust during the landing flare due to improper rigging of the propeller’s governor linkage.

NTSB narrative

The pilot was conducting a maintenance flight to troubleshoot the airplane's spray system in preparation for the coming agricultural season. During the landing flare, the airplane's propeller went into reverse thrust and the airplane settled to the grass runway and landed hard. The airplane bounced during the landing, departed the runway, and the left wing hit a stationary tank. The airplane continued across two ditches and came to rest on its nose. A postaccident examination of the airplane revealed that the left wing spar was bent. An examination of the engine, propeller, and related systems revealed that the linkage to the propeller governor had not been rigged properly; the investigation found no anomalies with the remaining engine and airplane systems.

Analysis

Primary failure mode
Mechanical failure
First missed decision gate
Properly rigging the propeller governor before the flight.

NTSB coding

Evidence available

  • 2 docket documents
View NTSB final reportView NTSB docket

Docket documents2

Related mishaps