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NTSB Report
July 31, 1992 · Alkire Pietenpol · N2739
Delphi, IN
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 31, 1992
Injury Outcomes
1 injury (1 minor injury)
Location
Delphi, IN
Aircraft
Alkire Pietenpol
Tail Number
N2739
Operator
Alkire Richard P
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
CHI92DEX04
THE AIRPLANE WAS IN CRUISE FLIGHT WHEN PROPELLER SEPARATED. THE PILOT MADE A FORCED LANDING IN A SOFT FIELD WITH HIGH GRASS. THE LANDING GEAR SANK INTO THE GROUND DURING THE ROLLOUT, AND THE AIRPLANE NOSED OVER. THE INVESTIGATION REVEALED THAT FOUR OF SIX PROPELLER RETAINING BOLTS WERE CRACKED AND RUSTED ACROSS THEIR DIAMETER IN AMOUNTS VARYING FROM 30 TO 100%.
NTSB Probable Cause
SEPARATION OF THE PROPELLER WHILE IN FLIGHT, AND UNSUITABLE TERRAIN TO EFFECT A FORCED LANDING.
Full Narrative
THE AIRPLANE WAS IN CRUISE FLIGHT WHEN PROPELLER SEPARATED. THE PILOT MADE A FORCED LANDING IN A SOFT FIELD WITH HIGH GRASS. THE LANDING GEAR SANK INTO THE GROUND DURING THE ROLLOUT, AND THE AIRPLANE NOSED OVER. THE INVESTIGATION REVEALED THAT FOUR OF SIX PROPELLER RETAINING BOLTS WERE CRACKED AND RUSTED ACROSS THEIR DIAMETER IN AMOUNTS VARYING FROM 30 TO 100%.
Flight
Event TypeAccident
Event Time12:50 EDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAlkire Pietenpol
Tail NumberN2739
Aircraft CategoryAir
DamageSubstantial
OperatorAlkire Richard P
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsFord · B · Reciprocating · 50
Seats2
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 54 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind340° @ 12 kt
Visibility15 sm
CeilingBroken clouds 1100 ft
Temperature / Dew Point63 F / 57
Altimeter30.00 inHg
Observation Time20:50
Weather SourceWFAC