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NTSB Report
March 31, 2015 · Cessna 170B Undesignat · N4582C
Wasilla, AK
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
March 31, 2015
Injury Outcomes
No injuries (2 uninjured)
Location
Wasilla, AK
Aircraft
Cessna 170B Undesignat (1953)
Tail Number
N4582C
Operator
Rocheleau Kenneth Raney
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC15CA016
The flight instructor and student pilot were practicing landings in a tailwheel-equipped airplane. The flight instructor stated that on the fifth landing, during the landing roll, the airplane began to drift slightly to the right, and the student pilot inadvertently applied right rudder. In an effort to correct for the right turn, the flight instructor immediately applied full left rudder and brake while simultaneously pulling aft on the control yoke, but the airplane ground looped. During the ground loop the airplane sustained substantial damage to the left wing and left aileron.
NTSB Probable Cause
The flight instructor's inadequate supervision of the student while landing, which resulted in a ground loop. Contributing to the accident was the student pilots failure to maintain directional control of the tailwheel-equipped airplane during the landing roll.
Full Narrative
The flight instructor and student pilot were practicing landings in a tailwheel-equipped airplane. The flight instructor stated that on the fifth landing, during the landing roll, the airplane began to drift slightly to the right, and the student pilot inadvertently applied right rudder. In an effort to correct for the right turn, the flight instructor immediately applied full left rudder and brake while simultaneously pulling aft on the control yoke, but the airplane ground looped. During the ground loop the airplane sustained substantial damage to the left wing and left aileron.
Flight
Event TypeAccident
Event Time18:00 AKDT
Nearest AirportGOOSEBAY (1678nm WNW)
Runway24
Runway Length3000 ft
Runway Width75 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 170B Undesignat
Tail NumberN4582C
Aircraft CategoryAir
DamageSubstantial
OperatorRocheleau Kenneth Raney
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360 · Reciprocating · 180
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 49 · Third Class · None
Crew 2Age 34 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point43 C / 30 C
Altimeter29.57 inHg
Observation Time01:56
Weather SourceWFAC