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NTSB Report
October 23, 1991 · Mcdonnell Douglas MD369D · N88SE
Beech Grove, IN
Overview
Report Status
Probable Cause
Event Type
Accident
Date
October 23, 1991
Injury Outcomes
No injuries (3 uninjured)
Location
Beech Grove, IN
Aircraft
Mcdonnell Douglas MD369D
Tail Number
N88SE
Operator
Miami Valley Services
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI92LA017
THE ACCIDENT HELICOPTER EXPERIENCED A LOSS OF CYCLIC PITCH CONTROL DURING LIFTOFF TO A HOVER AT THE START OF A BUSINESS FLIGHT. THE HELICOPTER PITCHED UP, STRIKING THE TAIL ROTOR INTO THE GROUND AND THEN ROLLED ONTO ITS RIGHT SIDE. THE HELICOPTER SUSTAINED SUBSTANTIAL DAMAGE. THE COMMERCIAL PILOT AND TWO PASSENGERS WERE NOT INJURED. ON SCENE INSPECTION OF THE WRECKAGE SHOWED A FLIGHT CONTROL LINKAGE DISCONNECT. THE MISSING BOLT WAS FOUND ON THE GROUND NEXT TO THE HELICOPTER. THE OTHER CONNECTING HARDWARE WAS NOT FOUND. THE PILOT STATED THAT HE DID NOT NOTICE THE MISSING NUT DURING HIS PREFLIGHT INSPECTION.
NTSB Probable Cause
IMPROPER INSTALLATION OF THE FLIGHT CONTROL LINKAGE DURING MAINTENANCE. COMPLACENCY AND INADEQUATE INSPECTION OF THE HELICOPTER BY MAINTENANCE PERSONNEL AND THE PILOT ARE FACTORS IN THE ACCIDENT.
Full Narrative
THE ACCIDENT HELICOPTER EXPERIENCED A LOSS OF CYCLIC PITCH CONTROL DURING LIFTOFF TO A HOVER AT THE START OF A BUSINESS FLIGHT. THE HELICOPTER PITCHED UP, STRIKING THE TAIL ROTOR INTO THE GROUND AND THEN ROLLED ONTO ITS RIGHT SIDE. THE HELICOPTER SUSTAINED SUBSTANTIAL DAMAGE. THE COMMERCIAL PILOT AND TWO PASSENGERS WERE NOT INJURED. ON SCENE INSPECTION OF THE WRECKAGE SHOWED A FLIGHT CONTROL LINKAGE DISCONNECT. THE MISSING BOLT WAS FOUND ON THE GROUND NEXT TO THE HELICOPTER. THE OTHER CONNECTING HARDWARE WAS NOT FOUND. THE PILOT STATED THAT HE DID NOT NOTICE THE MISSING NUT DURING HIS PREFLIGHT INSPECTION.
Flight
Event TypeAccident
Event Time12:00 EDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftMcdonnell Douglas MD369D
Tail NumberN88SE
Aircraft CategoryHeli
DamageSubstantial
OperatorMiami Valley Services
Operating RulePart 91
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20B · Turboshaft · 375
Seats4
People & Injuries
Injury SummaryNo injuries (3 uninjured)
Fatal0
Serious0
Minor0
Uninjured3
Total3
Crew 1Age 54 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind190° @ 11 kt
Visibility4 sm
CeilingOvercast 1100 ft
Temperature / Dew Point66 F / 63 F
Altimeter30.00 inHg
Observation Time15:51
Weather SourceWFAC