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NTSB Report
September 30, 1987 · Enstrom F-28A · N29GC
Mansfield, OH
Overview
Report Status
Preliminary report
Event Type
Accident
Date
September 30, 1987
Injury Outcomes
No injuries (2 uninjured)
Location
Mansfield, OH
Aircraft
Enstrom F-28A
Tail Number
N29GC
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ATL87LA267
THE PLT REPORTED THAT THE HELICOPTER MADE AN UNCOMMANDED TURN TO THE RIGHT AND ROLLED TO THE LEFT AS SHE WAS HOVER-TAXIING AWAY FROM THE HANGAR TOWARD THE TAKEOFF AREA. THE ACFT SUBSEQUENTLY IMPACTED THE TERRAIN AND CAME TO REST ON ITS LEFT SIDE. POST-CRASH EXAM OF THE ACFT REVEALED NO EVIDENCE OF PRE-EXISTING MECHANICAL FAILURE OR MALFUNCTION. INVESTIGATION REVEALED THAT THE WIND AT THE TIME WAS BLOWING FROM 320 DEG AT 15 KTS GUSTING TO 22 KTS, AND THAT THE HELO LIFTOFF POINT WAS ON THE DOWNWIND SIDE OF THE HANGAR. THE FAA BASIC HELICOPTER HANDBOOK AC61-13B NOTES THAT TURBULENCE IS LIKELY TO BE FOUND NEAR THE GROUND OF THE DOWNWIND SIDE OF BLDGS WHENEVER THE WIND VELOCITY EXCEEDS 10 MPH (8.7 KTS).
Full Narrative
THE PLT REPORTED THAT THE HELICOPTER MADE AN UNCOMMANDED TURN TO THE RIGHT AND ROLLED TO THE LEFT AS SHE WAS HOVER-TAXIING AWAY FROM THE HANGAR TOWARD THE TAKEOFF AREA. THE ACFT SUBSEQUENTLY IMPACTED THE TERRAIN AND CAME TO REST ON ITS LEFT SIDE. POST-CRASH EXAM OF THE ACFT REVEALED NO EVIDENCE OF PRE-EXISTING MECHANICAL FAILURE OR MALFUNCTION. INVESTIGATION REVEALED THAT THE WIND AT THE TIME WAS BLOWING FROM 320 DEG AT 15 KTS GUSTING TO 22 KTS, AND THAT THE HELO LIFTOFF POINT WAS ON THE DOWNWIND SIDE OF THE HANGAR. THE FAA BASIC HELICOPTER HANDBOOK AC61-13B NOTES THAT TURBULENCE IS LIKELY TO BE FOUND NEAR THE GROUND OF THE DOWNWIND SIDE OF BLDGS WHENEVER THE WIND VELOCITY EXCEEDS 10 MPH (8.7 KTS).
Flight
Event TypeAccident
Event Time11:45 EDT
Nearest AirportMansfield Lahm Municipal (0nm N)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftEnstrom F-28A
Tail NumberN29GC
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · HIO-360-C1A · Reciprocating · 205
Seats3
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 32 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind320° @ 15 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point61 F / 48
Altimeter29.00 inHg
Observation Time15:50
Weather SourceWFAC