Pilot Debrief

FLIGHT DESIGN GMBH CTLS near Marysville, OH — 2012-07-16

Final reportCEN12IA451
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Date
2012-07-16
Location
Marysville, OH, USA
Airport
MRT
Aircraft
FLIGHT DESIGN GMBH CTLS
Registration
N566FD
Category
Airplane
Highest injury
None
Fatalities
0
Phase of flight
Takeoff roll

Probable cause

Fatigue failure of the left main wheel assembly on takeoff, which resulted in a loss of directional control and runway excursion.

NTSB narrative

The pilot reported that before the accident, he landed without incident and taxied back for takeoff. During the subsequent takeoff roll, he felt a "jolt" and heard a "thumping" sound from the left main wheel. The airplane immediately veered to the left and departed the runway pavement. A postincident examination revealed that a section of the outboard half of the left main wheel assembly had failed. Airplane damage was limited to the left main landing gear, engine cowling, and propeller assembly. Metallurgical examination of the left outboard wheel revealed that it failed as a result of fatigue.

Analysis

Primary failure mode
Mechanical failure
First missed decision gate
Inspect landing gear for fatigue before takeoff after previous wheel failure.

NTSB coding

  • Sys/Comp malf/fail (non-power) · Takeoff

Evidence available

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

Docket documents4

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