Pilot Debrief

HAGER CLINTON RAY VANS RV-8 near Prague, OK — 2010-05-06

Final reportCEN10LA241
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Date
2010-05-06
Location
Prague, OK, USA
Aircraft
HAGER CLINTON RAY VANS RV-8
Registration
N127TT
Category
Airplane
Highest injury
Minor
Fatalities
0
Phase of flight
Cruise

Probable cause

The in-flight separation of a propeller blade for undetermined reasons.

NTSB narrative

The pilot/builder of a kit-built airplane had recently installed a three-bladed, ground adjustable propeller. He said the new propeller had about 8 flight hours and five flights on it. About 30 minutes into the flight, a single propeller blade separated. Due to the vibration, the pilot shut down the engine and performed a forced landing to a field. During the landing, the airplane bounced, nosed over and became inverted. The propeller blade lost in flight was not found, and examination of the remaining propeller hub and blades did not determine the reason for the blade separation.

Analysis

Primary failure mode
Mechanical failure
First missed decision gate
Pilot could have inspected propeller before flight to prevent blade loss.

NTSB coding

Evidence available

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

Docket documents7

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