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NTSB Report
July 12, 1987 · Air Tractor AT301A · N3169N
Baderville, MO
Overview
Report Status
Preliminary report
Event Type
Accident
Date
July 12, 1987
Injury Outcomes
No injuries (1 uninjured)
Location
Baderville, MO
Aircraft
Air Tractor AT301A
Tail Number
N3169N
Operator
Kewanee Ag Service
Injuries
None
Aircraft Damage
Destroyed
NTSB Number
MKC87LA137
DURING AN AERIAL APPLICATION OPERATION, THE PILOT EXPERIENCED A VIOLENT ENGINE VIBRATION. HE REDUCED POWER AND ATTEMPTED AN EMERGENCY LDG. ACFT NOSED OVER ON LANDING. THE PILOT EXITED AIRCRAFT THROUGH SIDE WINDOW. ACFT CAUGHT FIRE AND WAS DESTROYED. INVESTIGATION REVEALED APPROXIMATELY FOURTEEN INCHES OF PROPELLER BLADE WAS MISSING. METALLURGICAL EXAMINATION DETERMINED THE BLADE SEPARATION RESULTED FROM STRIKING AN OBJECT IN THE PAST WHICH RESULTED IN A CRACK THAT FINALLY SEPARATED.
Full Narrative
DURING AN AERIAL APPLICATION OPERATION, THE PILOT EXPERIENCED A VIOLENT ENGINE VIBRATION. HE REDUCED POWER AND ATTEMPTED AN EMERGENCY LDG. ACFT NOSED OVER ON LANDING. THE PILOT EXITED AIRCRAFT THROUGH SIDE WINDOW. ACFT CAUGHT FIRE AND WAS DESTROYED. INVESTIGATION REVEALED APPROXIMATELY FOURTEEN INCHES OF PROPELLER BLADE WAS MISSING. METALLURGICAL EXAMINATION DETERMINED THE BLADE SEPARATION RESULTED FROM STRIKING AN OBJECT IN THE PAST WHICH RESULTED IN A CRACK THAT FINALLY SEPARATED.
Flight
Event TypeAccident
Event Time16:00 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionNo
Aircraft
AircraftAir Tractor AT301A
Tail NumberN3169N
Aircraft CategoryAir
DamageDestroyed
OperatorKewanee Ag Service
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R-1340-AN1 · Reciprocating · 600
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 37 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind210° @ 10 kt
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO