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NTSB Report
July 21, 1982 · Thorp T-18 · N62RB
Connellsville, PA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
July 21, 1982
Injury Outcomes
2 injuries (2 minor injuries)
Location
Connellsville, PA
Aircraft
Thorp T-18
Tail Number
N62RB
Operator
Duane Simm
Injuries
Minor
Aircraft Damage
Destroyed
NTSB Number
NYC82DA161
WHILE THE STUDENT WAS TAKING OFF, THE ENGINE BEGAN TO VIBRATE VIOLENTLY AT AN ALTITUDE OF ABOUT 300 TO 400 FT AGL. THE FLIGHT INSTRUCTOR (CFI) TOOK CONTROL AND INITIATED A TURN BACK TO THE AIRPORT. HE STATED THAT DUE TO THE VIBRATION, HE HAD TO REDUCE THE POWER, AND WITH THE POWER REDUCTION, IT WAS IMPOSSIBLE TO MAINTAIN SUFFICIENT ALTITUDE TO REACH THE AIRPORT. WHILE MAKING A FORCED LANDING, DOWNHILL ON SOFT TERRAIN, THE AIRCRAFT WAS DESTROYED. AN INVESTIGATION REVEALED THAT THE METAL LEADING EDGE PORTION OF THE PROPELLER TIP HAD SEPARATED. THE AIRCRAFT WAS EQUIPPED WITH A WOODEN SENSENICH 66LN74 PROPELLER.
Full Narrative
WHILE THE STUDENT WAS TAKING OFF, THE ENGINE BEGAN TO VIBRATE VIOLENTLY AT AN ALTITUDE OF ABOUT 300 TO 400 FT AGL. THE FLIGHT INSTRUCTOR (CFI) TOOK CONTROL AND INITIATED A TURN BACK TO THE AIRPORT. HE STATED THAT DUE TO THE VIBRATION, HE HAD TO REDUCE THE POWER, AND WITH THE POWER REDUCTION, IT WAS IMPOSSIBLE TO MAINTAIN SUFFICIENT ALTITUDE TO REACH THE AIRPORT. WHILE MAKING A FORCED LANDING, DOWNHILL ON SOFT TERRAIN, THE AIRCRAFT WAS DESTROYED. AN INVESTIGATION REVEALED THAT THE METAL LEADING EDGE PORTION OF THE PROPELLER TIP HAD SEPARATED. THE AIRCRAFT WAS EQUIPPED WITH A WOODEN SENSENICH 66LN74 PROPELLER.
Flight
Event TypeAccident
Event Time17:40 EDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftThorp T-18
Tail NumberN62RB
Aircraft CategoryAir
DamageDestroyed
OperatorDuane Simm
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320 · Reciprocating · 150
Seats2
People & Injuries
Injury Summary2 injuries (2 minor injuries)
Fatal0
Serious0
Minor2
Uninjured0
Total2
Crew 1Age 34 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind10° @ 5 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point18 C / 0 C
Altimeter0