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NTSB Report
May 19, 2016 · Aeronca 11AC NO Series · N85871
Vinton, IA
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
May 19, 2016
Injury Outcomes
No injuries (2 uninjured)
Location
Vinton, IA
Aircraft
Aeronca 11AC NO Series (1946)
Tail Number
N85871
Injuries
None
Aircraft Damage
Substantial
NTSB Number
GAA16CA257
The pilot reported that during the landing roll the airplane rolled over an uneven crest on the runway and the airplane became airborne. The pilot further reported that he encountered a crosswind gust and the left wing rose and the airplane veered to the right. Subsequently, the airplane departed the runway and ground looped. The left wing rear spar was substantially damaged. An automated weather observing system at the airport, about the time of the accident, reported the wind at 120 degrees true, at 7 knots, gusting to 16 knots, for the landing on runway 16. The pilot did not report any mechanical malfunctions or failures with the airplane that would have precluded normal operation.
NTSB Probable Cause
The pilot's failure to maintain directional control during the landing roll in gusty crosswind conditions, which resulted in a runway excursion and ground loop.
Full Narrative
The pilot reported that during the landing roll the airplane rolled over an uneven crest on the runway and the airplane became airborne. The pilot further reported that he encountered a crosswind gust and the left wing rose and the airplane veered to the right. Subsequently, the airplane departed the runway and ground looped. The left wing rear spar was substantially damaged. An automated weather observing system at the airport, about the time of the accident, reported the wind at 120 degrees true, at 7 knots, gusting to 16 knots, for the landing on runway 16. The pilot did not report any mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Flight
Event TypeAccident
Event Time15:00 CDT
Nearest AirportVinton Veterans Memorial Arpk (0nm E)
Runway16
Runway Length2500 ft
Runway Width50 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAeronca 11AC NO Series
Tail NumberN85871
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · A75-8 · Reciprocating · 75
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 55 · Third Class · None
Crew 2None
Conditions
ConditionsVMC
LightDaylight
Wind120° @ 7 kt, gusting 16 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point37 C
Altimeter30.11 inHg
Observation Time19:55
Weather SourceWFAC