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NTSB Report
March 27, 2010 · Waco YPF-7 · N32077
Houston, TX
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
March 27, 2010
Injury Outcomes
No injuries (2 uninjured)
Location
Houston, TX
Aircraft
Waco YPF-7
Tail Number
N32077
Operator
Memorial Aviation
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CEN10CA213
The pilot stated that he locked the tailwheel on his single-engine airplane prior to departure. After takeoff, he stayed in the traffic pattern and landed. However, during the landing rollout the airplane ground-looped and the airplane's lower right wing contacted the ground, breaking the wood spar. The pilot stated that postaccident examination of the airplane indicated that either hardened grease and dirt buildup may have prevented the tailwheel locking mechanism from fully engaging or that the mechanism may have been inadvertently bumped in flight.
NTSB Probable Cause
The pilot's inability to maintain control during landing due to the failure of the tailwheel locking mechanism to remain engaged prior to landing.
Full Narrative
The commercial pilot stated that he locked the tailwheel on his single-engine airplane prior to departure. After takeoff, he stayed in the traffic pattern and landed. However, during the landing roll out, the airplane ground looped and the airplane's lower right wing contacted the ground and broke the wood spar. The pilot stated that on examining the airplane after the accident, that either hardened grease and dirt build up may have prevented the tail wheel locking mechanism from fully engaging or that the mechanism may have been inadvertently bumped in flight.
Flight
Event TypeAccident
Event Time10:30 CDT
Nearest AirportHouston Southwest Airport (0nm)
Runway27
Flight Plan FiledNone
Aircraft FireNo
Aircraft
AircraftWaco YPF-7
Tail NumberN32077
Aircraft CategoryAir
DamageSubstantial
OperatorMemorial Aviation
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsJacobs · L4 /R755-7 · Reciprocating · 245
Seats3
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 57 · Third Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO