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NTSB Report
August 9, 1992 · Mbb BO-105 · N30SV
Madison, SD
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 9, 1992
Injury Outcomes
3 injuries (3 minor injuries)
Location
Madison, SD
Aircraft
Mbb BO-105
Tail Number
N30SV
Operator
Rocky Mountain Helicopters
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
CHI92LA233
THE PILOT REPORTED HE ENTERED A SHALLOW RIGHT TURN ABOUT 200-300' ABOVE LAKE MADISON. HE SUDDENLY REALIZED HE HAD LOST CONSIDERABLE ALTITUDE AND WAS IN A STEEP RIGHT BANK. HE SAID HE ATTEMPTED TO LEVEL THE HELICOPTER AND GAIN ALTITUDE BUT STRUCK THE WATER. HE WAS UNAWARE OF ANY PRE IMPACT MECHANICAL DIFFICULTIES WITH THE HELICOPTER. A POST CRASH INSPECTION DID NOT DISCOVER ANY PREEXISTING MECHANICAL DEFICIENCIES.
NTSB Probable Cause
THE PILOT'S INADEQUATE VISUAL LOOKOUT AND INADVERTENT DESCENT.
Full Narrative
THE PILOT REPORTED HE ENTERED A SHALLOW RIGHT TURN ABOUT 200-300' ABOVE LAKE MADISON. HE SUDDENLY REALIZED HE HAD LOST CONSIDERABLE ALTITUDE AND WAS IN A STEEP RIGHT BANK. HE SAID HE ATTEMPTED TO LEVEL THE HELICOPTER AND GAIN ALTITUDE BUT STRUCK THE WATER. HE WAS UNAWARE OF ANY PRE IMPACT MECHANICAL DIFFICULTIES WITH THE HELICOPTER. A POST CRASH INSPECTION DID NOT DISCOVER ANY PREEXISTING MECHANICAL DEFICIENCIES.
Flight
Event TypeAccident
Event Time13:26 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledCvfr
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftMbb BO-105
Tail NumberN30SV
Aircraft CategoryHeli
DamageSubstantial
OperatorRocky Mountain Helicopters
Operating RulePart 91
Engines2
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20 · Turboshaft · 420
People & Injuries
Injury Summary3 injuries (3 minor injuries)
Fatal0
Serious0
Minor3
Uninjured0
Total3
Crew 1Age 42 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind340° @ 5 kt
Visibility5 sm
CeilingBroken clouds 3700 ft
Altimeter29.00 inHg
Observation Time18:34
Weather SourceWFAC