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NTSB Report
August 20, 2023 · Waco UPF-7 · N39721
Warrenton, VA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 20, 2023
Injury Outcomes
No injuries (3 uninjured)
Location
Warrenton, VA
Aircraft
Waco UPF-7 (1942)
Tail Number
N39721
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ERA23LA345
According to the pilot, after takeoff in the vintage tailwheel-equipped biplane, he was notified via radio that the right main landing gear was partially separated from the airframe. The pilot, returned to the airport and during landing, he continued to fly the airplane down the runway with the right main landing gear in the air until the airplane decelerated and settled onto the turf runway. Once the airplane slowed, it “ground loop[ed]” and came to rest on the nose, which resulted in substantial damage to the left wing. Postaccident examination revealed that the inner strut had separated from the outer strut but remained partially attached.
NTSB Probable Cause
A ground loop during landing resulting from a partial separation of the right main landing gear strut during takeoff.
Full Narrative
According to the pilot, after takeoff in the vintage tailwheel-equipped biplane, he was notified via radio that the right main landing gear was partially separated from the airframe. The pilot, returned to the airport and during landing, he continued to fly the airplane down the runway with the right main landing gear in the air until the airplane decelerated and settled onto the turf runway. Once the airplane slowed, it “ground loop[ed]” and came to rest on the nose, which resulted in substantial damage to the left wing. Postaccident examination revealed that the inner strut had separated from the outer strut but remained partially attached.
Flight
Event TypeAccident
Event Time19:30 EDT
Nearest AirportFlying Circus Aerodrome (0nm SE)
Runway22
Runway Length2500 ft
Runway Width200 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftWaco UPF-7
Tail NumberN39721
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · R-670-6A · Reciprocating · 220
Seats3
People & Injuries
Injury SummaryNo injuries (3 uninjured)
Fatal0
Serious0
Minor0
Uninjured3
Total3
Crew 1Age 50 · Unknown · None
Conditions
ConditionsVMC
LightDaylight
Wind170° @ 3 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point59 F
Altimeter30.09 inHg
Observation Time19:35
Weather SourceWFAC