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NTSB Report
August 2, 1990 · Boeing A75N1 · N25400
Oshkosh, WI
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 2, 1990
Injury Outcomes
1 injury (1 fatality)
Location
Oshkosh, WI
Aircraft
Boeing A75N1
Tail Number
N25400
Operator
Lewkowicz John D
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
CHI90FA212
THE AIRCRAFT WAS ENGAGED IN PERFORMING AEROBATIC MANEUVERS IN CONNECTION WITH THE EXPERIMENTAL AIRCRAFT ASSOCIATIONS CONVENTION. THE AIRCRAFT ENTERED A SLOW ROLL TO THE LEFT. AT APPROXIMATELY THE INVERTED POSITION, THE AIRCRAFT DEPARTED CONTROLLED FLIGHT, ENTERED AN UNCOMMANDED SNAP ROLL (STALL/SPIN), TO THE LEFT. THE AIRCRAFT COMPLETED THREE-QUARTERS OF THE ROLL, STOPPED IN KNIFE-EDGE FLIGHT AND DESCENDED APPROXIMATELY 200 TO 300 FEET INTO THE TERRAIN.
NTSB Probable Cause
THE PILOT-IN-COMMAND'S FAILURE TO MAINTAIN AIRSPEED SUFFICIENT TO AVOID A STALL/SPIN AT AN ALTITUDE INSUFFICIENT TO EFFECT A FULL RECOVERY.
Full Narrative
THE AIRCRAFT WAS ENGAGED IN PERFORMING AEROBATIC MANEUVERS IN CONNECTION WITH THE EXPERIMENTAL AIRCRAFT ASSOCIATIONS CONVENTION. THE AIRCRAFT ENTERED A SLOW ROLL TO THE LEFT. AT APPROXIMATELY THE INVERTED POSITION, THE AIRCRAFT DEPARTED CONTROLLED FLIGHT, ENTERED AN UNCOMMANDED SNAP ROLL (STALL/SPIN), TO THE LEFT. THE AIRCRAFT COMPLETED THREE-QUARTERS OF THE ROLL, STOPPED IN KNIFE-EDGE FLIGHT AND DESCENDED APPROXIMATELY 200 TO 300 FEET INTO THE TERRAIN.
Flight
Event TypeAccident
Event Time16:42 CDT
Nearest AirportWittman Field (0nm N)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBoeing A75N1
Tail NumberN25400
Aircraft CategoryAir
DamageDestroyed
OperatorLewkowicz John D
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · W-670-16 · Reciprocating · 220
Seats2
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 47 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind210° @ 10 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Observation Time21:43
Weather SourceWFAC