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NTSB Report
April 28, 1992 · Bell BH47G · N90642
Bucklin, MO
Overview
Report Status
Probable Cause
Event Type
Accident
Date
April 28, 1992
Injury Outcomes
No injuries (2 uninjured)
Location
Bucklin, MO
Aircraft
Bell BH47G
Tail Number
N90642
Operator
Central Missouri State Univ
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI92LA140
THE CFI STATED HE INITIATED A CLIMBING RIGHT TURN JUST AFTER LIFT-OFF. HE ESTIMATED THE HELICOPTER WAS ABOUT 10 TO 15 FEET ABOVE THE GROUND WHEN '...IT FELT LIKE THE HELICOPTER LOST POWER AND TRIED TO YAW TOWARDS THE LEFT....I TRIED TO GET IT BACK ON THE GROUND AS QUICKLY AND SAFELY AS I COULD.' HE STATED HE OVERCOMPENSATED FOR A PERCEIVED 'UPWARD PRESSURE' ON THE COLLECTIVE, AND THE HELICOPTER IMPACTED THE GROUND ABRUPTLY. WEATHER CONDITIONS WERE CONDUCIVE FOR MODERATE CARBURETOR ICING. THE STUDENT PILOT (GROUND WITNESS TO THE ACCIDENT) REPORTED THE CFI MADE A NUMBER OF ADJUSTMENTS TO THE CARBURETOR HEAT DURING THE PREVIOUS FLIGHT. EXAMINATION REVEALED NO EVIDENCE OF PRE-IMPACT MECHANICAL MALFUNCTION.
NTSB Probable Cause
THE HELICOPTER PILOT'S ABRUPT TOUCHDOWN DURING THE FORCED LANDING. RELATED FACTORS WERE THE PRESENCE OF CARBURETOR ICE CONDITIONS, AND THE PILOT'S IMPROPER USE OF CARBURETOR HEAT.
Full Narrative
THE CFI STATED HE INITIATED A CLIMBING RIGHT TURN JUST AFTER LIFT-OFF. HE ESTIMATED THE HELICOPTER WAS ABOUT 10 TO 15 FEET ABOVE THE GROUND WHEN '...IT FELT LIKE THE HELICOPTER LOST POWER AND TRIED TO YAW TOWARDS THE LEFT....I TRIED TO GET IT BACK ON THE GROUND AS QUICKLY AND SAFELY AS I COULD.' HE STATED HE OVERCOMPENSATED FOR A PERCEIVED 'UPWARD PRESSURE' ON THE COLLECTIVE, AND THE HELICOPTER IMPACTED THE GROUND ABRUPTLY. WEATHER CONDITIONS WERE CONDUCIVE FOR MODERATE CARBURETOR ICING. THE STUDENT PILOT (GROUND WITNESS TO THE ACCIDENT) REPORTED THE CFI MADE A NUMBER OF ADJUSTMENTS TO THE CARBURETOR HEAT DURING THE PREVIOUS FLIGHT. EXAMINATION REVEALED NO EVIDENCE OF PRE-IMPACT MECHANICAL MALFUNCTION.
Flight
Event TypeAccident
Event Time12:30 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBell BH47G
Tail NumberN90642
Aircraft CategoryHeli
DamageSubstantial
OperatorCentral Missouri State Univ
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsFranklin · 6V4-200-C32 · Reciprocating · 222
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 34 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind180° @ 10 kt
Visibility6 sm
CeilingNone
Temperature / Dew Point61 F / 39 C
Altimeter30.00 inHg
Weather SourcePILO