Pilot Debrief

YAKOVLEV/DAY YAK-11 near Culpeper, VA — 2009-06-08

Final reportERA09LA330
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Date
2009-06-08
Location
Culpeper, VA, USA
Airport
CJR
Aircraft
YAKOVLEV/DAY YAK-11
Registration
N7YK
Category
Airplane
Highest injury
None
Fatalities
0
Phase of flight
Landing

Probable cause

The pilot’s failure to maintain directional control during landing.

NTSB narrative

According to the pilot, during the landing roll in the experimental tailwheel airplane, the airplane drifted to the right slowly into a grassy area and struck a drainage ditch. The pilot stated that he applied left brake to correct for the drift, but was unsuccessful. After the accident, the airplane was placed on jacks to allow the left main wheel assembly to be rotated. The right brake line was capped off and the brake system was serviced. Once the preparation was complete, the left wheel was rotated by hand. When pressure was applied to the left brake pedal, the left wheel stopped rotating. Additional pressure was applied in an attempt to move the left wheel, with no success. The left brake functioned properly during the test and no other preimpact anomalies were noted. The winds were recorded as calm about the time of the accident.

Analysis

Primary failure mode
Mechanical failure
First missed decision gate
Pilot could have aborted landing due to airspeed indicator failure.

NTSB coding

Evidence available

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

Docket documents5

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