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NTSB Report
June 26, 2017 · Bell 206B B · N183TC
Entiat, WA
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
June 26, 2017
Injury Outcomes
No injuries (1 uninjured)
Location
Entiat, WA
Aircraft
Bell 206B B (1975)
Tail Number
N183TC
Operator
Jp Helicopters
Injuries
None
Aircraft Damage
Substantial
NTSB Number
GAA17CA369
The pilot reported that, while maneuvering the helicopter at low altitude for an agricultural application flight, an unsecured clipboard that was on the seat next to him fell and became lodged under the antitorque pedals. Unable to free the clipboard, the pilot chose to make a precautionary landing. About 5 to10 ft above ground level, the pilot lost tail rotor authority, and the helicopter began to rotate to the right. After about two rotations, he was able to land the helicopter. During the touchdown, the stinger folded into the tail rotor. The helicopter sustained substantial damage to the tailboom. The pilot reported that there were no preaccident mechanical malfunctions or failures with the helicopter that would have precluded normal operation.
NTSB Probable Cause
The pilot’s failure to secure a loose item inside the cockpit that interfered with antitorque pedal control and led to a loss of helicopter control due to a loss of tail rotor effectiveness.
Full Narrative
The pilot reported that while maneuvering the helicopter at low altitude for an aerial application flight, an usecured clipboard that was on the seat next to him fell, and became lodged under the anti-torque peddles. Unable to free the clipboard, the pilot chose to make a precautionary landing. About 5-10 ft. above ground level, tail rotor authority was lost and the helicopter began to rotate to the right. After about two rotations he was able to land the helicopter. During the touchdown, the stinger folded into the tail rotor. The helicopter sustained substantial damage to the tail boom. The pilot reported no preaccident mechanical malfunctions or failures with the helicopter that would have precluded normal operation.
Flight
Event TypeAccident
Event Time16:45 PDT
Nearest Airport0nm
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBell 206B B
Tail NumberN183TC
Aircraft CategoryHeli
DamageSubstantial
OperatorJp Helicopters
Operating RulePart 137
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20 SER · Turboshaft · 400
Seats4
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 32 · Second Class · None
Conditions
ConditionsVMC
LightDaylight
Wind280° @ 14 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point43 C
Altimeter29.70 inHg
Observation Time23:55
Weather SourceWFAC