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NTSB Report
May 8, 1990 · Piper PA-36-375 · N3634E
Woonsocket, SD
Overview
Report Status
Probable Cause
Event Type
Accident
Date
May 8, 1990
Injury Outcomes
1 injury (1 fatality), 1 uninjured
Location
Woonsocket, SD
Aircraft
Piper PA-36-375
Tail Number
N3634E
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
DEN90DTK01
THE PLTS OF TWO PA-36 AGRICULTURAL APPLICATION ACFT (N3634E & N6177A) WERE SPRAYING ADJACENT FIELDS. THE ACFT WERE OWNED AND OPERATED BY A FATHER AND SON TEAM. THE PLTS HAD PREBRIEFED TO SPRAY WITH EAST/WEST SWATH RUNS. HOWEVER, DURING THE FLIGHT, THE PLT OF N3634E CHANGED TO NORTH/SOUTH RUN(S). SUBSEQUENTLY, THE TWO ACFT CONVERGED AND COLLIDED AS EACH WAS PULLING UP AT THE END OF A SWATH RUN.
NTSB Probable Cause
FAILURE OF THE PILOT OF N3634E TO FOLLOW THE BRIEFED PLAN OF OPERATION, AND FAILURE OF BOTH PILOTS TO SEE-AND-AVOID EACH OTHER (INADEQUATE VISUAL LOOKOUT).
Full Narrative
THE PLTS OF TWO PA-36 AGRICULTURAL APPLICATION ACFT (N3634E & N6177A) WERE SPRAYING ADJACENT FIELDS. THE ACFT WERE OWNED AND OPERATED BY A FATHER AND SON TEAM. THE PLTS HAD PREBRIEFED TO SPRAY WITH EAST/WEST SWATH RUNS. HOWEVER, DURING THE FLIGHT, THE PLT OF N3634E CHANGED TO NORTH/SOUTH RUN(S). SUBSEQUENTLY, THE TWO ACFT CONVERGED AND COLLIDED AS EACH WAS PULLING UP AT THE END OF A SWATH RUN.
Flight
Event TypeAccident
Event Time11:15 CDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-36-375
Tail NumberN3634E
Aircraft CategoryAir
DamageDestroyed
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-520 · Reciprocating · 375 | Lycoming · IO-520 · Reciprocating · 375
Seats1
People & Injuries
Injury Summary1 injury (1 fatality), 1 uninjured
Fatal1
Serious0
Minor0
Uninjured1
Total2
Crew 1Age 60 · Second Class
Crew 2Age 34 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind310° @ 10 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point64 F / 39 C
Altimeter29.00 inHg
Observation Time22:21
Weather SourceWFAC