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NTSB Report
June 26, 1988 · Bell 206B3 · N2754A
Missoula, MT
Overview
Report Status
Preliminary report
Event Type
Accident
Date
June 26, 1988
Injury Outcomes
No injuries (2 uninjured)
Location
Missoula, MT
Aircraft
Bell 206B3
Tail Number
N2754A
Operator
Minuteman Aviation
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN88LA137
A CHECK AIRMAN AND A COMMERCIAL PLT WERE PERFORMING AN INSTRUCTIONAL FLT. DURING CLIMBOUT AFTER A PRACTICE AUTOROTATION, THE ENGINE OUT AUDIO AND LIGHT WARNING ACTIVATED. BOTH PILOTS VERIFIED AN ACTUAL ENGINE OUT AND ENTERED AN AUTOROTATION. THE HELICOPTER TOUCHED DOWN ON SOFT TERRAIN WITH SOME FORWARD MOVEMENT AND LOW ROTOR RPM. THE MAIN ROTOR BLADES CONTACTED THE TAIL BOOM AND SEVERED IT. A POST ACCIDENT INSPECTION SUPERVISED BY AN FAA AIRWORTHINESS INSPECTOR, FAILED TO REVEAL ANY EVIDENCE TO EXPLAIN THE REPORTED ENGINE FAILURE.
Full Narrative
A CHECK AIRMAN AND A COMMERCIAL PLT WERE PERFORMING AN INSTRUCTIONAL FLT. DURING CLIMBOUT AFTER A PRACTICE AUTOROTATION, THE ENGINE OUT AUDIO AND LIGHT WARNING ACTIVATED. BOTH PILOTS VERIFIED AN ACTUAL ENGINE OUT AND ENTERED AN AUTOROTATION. THE HELICOPTER TOUCHED DOWN ON SOFT TERRAIN WITH SOME FORWARD MOVEMENT AND LOW ROTOR RPM. THE MAIN ROTOR BLADES CONTACTED THE TAIL BOOM AND SEVERED IT. A POST ACCIDENT INSPECTION SUPERVISED BY AN FAA AIRWORTHINESS INSPECTOR, FAILED TO REVEAL ANY EVIDENCE TO EXPLAIN THE REPORTED ENGINE FAILURE.
Flight
Event TypeAccident
Event Time13:30 MDT
Nearest AirportMissoula Int'L (0nm N)
Runway0
Flight Plan FiledCvfr
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBell 206B3
Tail NumberN2754A
Aircraft CategoryHeli
DamageSubstantial
OperatorMinuteman Aviation
Operating RulePart 91
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20B · Turboshaft · 420
Seats5
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 39 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind270° @ 7 kt
Visibility20 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO