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NTSB Report
July 21, 2014 · Bosco Don Searey · N83007
Mount Vernon, WA
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
July 21, 2014
Injury Outcomes
No injuries (2 uninjured)
Location
Mount Vernon, WA
Aircraft
Bosco Don Searey (2004)
Tail Number
N83007
Operator
Latourette
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR14CA306
While practicing step taxiing on the river the pilot under instruction attempted to transition from step taxi to plow taxi. During the transition the right wing dropped and contacted the water, which damaged the right sponson. The flight instructor added power and proceeded to takeoff. The airplane climbed to 10 feet above the water when it then started a slow uncontrollable turn to the right. The airplane lost altitude and impacted the water. Both pilots egressed the airplane unhurt. The airplane's hull/fuselage was substantially damaged and it took on water. The pilot reported no preimpact mechanical malfunction or failure with the airplane that would have precluded normal operation.
NTSB Probable Cause
The pilot's failure to maintain lateral control while taxiing. Contributing to the accident was the incorrect decision to takeoff once the sponson had been damaged.
Full Narrative
While practicing step taxiing on the river the pilot under instruction attempted to transition from step taxi to plow taxi. During the transition the right wing dropped and contacted the water, which damaged the right sponson. The flight instructor added power and proceeded to takeoff. The airplane climbed to 10 feet above the water when it then started a slow uncontrollable turn to the right. The airplane lost altitude and impacted the water. Both pilots egressed the airplane unhurt. The airplane's hull/fuselage was substantially damaged and it took on water.The pilot reported no preimpact mechanical malfunction or failure with the airplane that would have precluded normal operation.
Flight
Event TypeAccident
Event Time11:00 PDT
Nearest Airport0nm
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBosco Don Searey
Tail NumberN83007
Aircraft CategoryAir
DamageSubstantial
OperatorLatourette
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsRotax · 914UL · Reciprocating · 115
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 69 · Sprt · None
Crew 2Age 69 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point63 F / 54
Altimeter30.04 inHg
Observation Time18:15
Weather SourceWFAC