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NTSB Report
April 24, 2017 · Thomas B Mcgrath JA30 Superstol NO Series · N614WB
Chesterfield, MO
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
April 24, 2017
Injury Outcomes
No injuries (1 uninjured)
Location
Chesterfield, MO
Aircraft
Thomas B Mcgrath JA30 Superstol NO Series (2015)
Tail Number
N614WB
Injuries
None
Aircraft Damage
Substantial
NTSB Number
GAA17CA246
The pilot of the tailwheel-equipped airplane reported that, after several attempts to land, the wind had changed to a more favorable direction and that "[he] was confident in [landing] the plane." He added that the approach was uneventful but that, during the landing roll, "a cross wind started pushing the aircraft and tail left." Subsequently, the airplane ground looped to the right. The airplane sustained substantial damage to the left wing, left wing aileron, and right wing rear spar. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The automated weather observation system on the airport, about the time of the accident, reported that the wind was from 180° at 10 knots. The pilot landed on runway 8L.
NTSB Probable Cause
Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained - C
Full Narrative
The pilot of the tailwheel-equipped airplane reported that after several attempts to land, the wind had changed to a more favorable direction and "[he] was confident in [landing] the plane". He added that the approach was uneventful, but during the landing roll "a cross wind started pushing the aircraft and tail left". Subsequently, the airplane ground looped to the right. The airplane sustained substantial damage to the left wing, left wing aileron and right wing rear spar. The pilot reported that there were no pre-accident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The automated weather observation system on the airport, about the time of the accident, reported the wind at 180° at 10 knots. The pilot landed on runway 8L.
Flight
Event TypeAccident
Event Time15:31 CDT
Nearest AirportSpirit Of St Louis (0nm ESE)
Runway8L
Runway Length5000 ft
Runway Width75 ft
Flight Plan FiledVFR
Flight Plan ActivatedUnknown
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftThomas B Mcgrath JA30 Superstol NO Series
Tail NumberN614WB
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsRotax · BullyHawk 914 · Reciprocating · 115
Seats2
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 56 · Sprt · None
Conditions
ConditionsVMC
LightDaylight
Wind180° @ 10 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point32 C
Altimeter29.76 inHg
Observation Time20:54
Weather SourceWFAC