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NTSB Report
September 1, 1984 · Bell 222 · N22299
Knoxville, TN
Overview
Report Status
Preliminary report
Event Type
Accident
Date
September 1, 1984
Injury Outcomes
4 injuries (1 serious injury, 3 minor injuries), 1 unknown outcome
Location
Knoxville, TN
Aircraft
Bell 222
Tail Number
N22299
Operator
Ems
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
ATL84FA277
THE HELICOPTER WAS IN A HOVER WHEN A RT PEDAL TURN WAS INITIATED AND A CLIMB ATTEMPTED. PLT STATED, 'I WAS UNABLE TO CLIMB, AND THE AIRCRAFT BEGAN TO LOSE ROTOR RPM. I INCREASED POWER TO 100% MRTQ. THE ACFT WAS SETTLING.' UNABLE TO SUSTAIN FLT, A LANDING WAS MADE AT A ROAD INTERSECTION DURING WHICH 3 VEHICLES WERE DAMAGED. THE ACFT WAS SUBSTANTIALLY DAMAGED BY FIRE. INSPECTION & TESTING REVEALED THE TORQUE CONTROL UNIT, P/N 222-360-010-101, WHICH LIMITS THE AMT OF COMBINED ENG TORQUE DELIVERED TO THE MAIN TRANSMISSION, WAS ADJUSTED TO 46.0 PSI. ACCORDING TO BELL MAINTENANCE MANUALS,THE UNIT SHOULD BE SET AT 48.5 PSI (+1.5/-0.0). THE UNIT WAS INSTALLED IN THE ACFT ON 3/1/82. IT COULD NOT BE DETERMINEDIF THE UNIT WAS ADJUSTED AT THE TIME OF INSTALLATION OR AFTER.
Full Narrative
THE HELICOPTER WAS IN A HOVER WHEN A RT PEDAL TURN WAS INITIATED AND A CLIMB ATTEMPTED. PLT STATED, 'I WAS UNABLE TO CLIMB, AND THE AIRCRAFT BEGAN TO LOSE ROTOR RPM. I INCREASED POWER TO 100% MRTQ. THE ACFT WAS SETTLING.' UNABLE TO SUSTAIN FLT, A LANDING WAS MADE AT A ROAD INTERSECTION DURING WHICH 3 VEHICLES WERE DAMAGED. THE ACFT WAS SUBSTANTIALLY DAMAGED BY FIRE. INSPECTION & TESTING REVEALED THE TORQUE CONTROL UNIT, P/N 222-360-010-101, WHICH LIMITS THE AMT OF COMBINED ENG TORQUE DELIVERED TO THE MAIN TRANSMISSION, WAS ADJUSTED TO 46.0 PSI. ACCORDING TO BELL MAINTENANCE MANUALS,THE UNIT SHOULD BE SET AT 48.5 PSI (+1.5/-0.0). THE UNIT WAS INSTALLED IN THE ACFT ON 3/1/82. IT COULD NOT BE DETERMINEDIF THE UNIT WAS ADJUSTED AT THE TIME OF INSTALLATION OR AFTER.
Flight
Event TypeAccident
Event Time16:15 CDT
Nearest Airport0nm N
Runway0
Runway Length200 ft
Runway Width200 ft
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionGrd
Aircraft
AircraftBell 222
Tail NumberN22299
Aircraft CategoryHeli
DamageDestroyed
OperatorEms
Operating RulePart 91
Engines2
Engine TypeTurboshaft
Engine DetailsLycoming · LT101-650C3A · Turboshaft · 620
Seats5
People & Injuries
Injury Summary4 injuries (1 serious injury, 3 minor injuries), 1 unknown outcome
Fatal0
Serious1
Minor3
Uninjured0
Total5
Crew 1Age 34 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility15 sm
CeilingNone
Temperature / Dew Point52
Altimeter30.00 inHg
Observation Time21:00
Weather SourceWFAC