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NTSB Report
September 16, 2006 · Md Helicopters 369FF · N530FF
Port Clinton, OH
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
September 16, 2006
Injury Outcomes
No injuries (2 uninjured)
Location
Port Clinton, OH
Aircraft
Md Helicopters 369FF
Tail Number
N530FF
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI06CA266
The experimental research and developmental helicopter's left boom impacted water during an offshore low level survey flight. The pilot's accident report stated, "While flying an easterly course line at approximately 25 knots over calm surface conditions, a course correction to the left was initiated with 2 degrees of left bank angle. This resulted in the left boom tip touching the surface of the water. The nose of the helicopter pitched down causing the main rotor blades to strike the water. The helicopter became inverted, sinking immediately. The elapsed time between the boom tip contacting the water and the helicopter becoming inverted was approximately three seconds." The pilot reported no mechanical malfunctions in reference to the survey flight.
NTSB Probable Cause
The pilot not maintaining clearance from the water during the survey flight. A factor was the low altitude the survey flight was flown at.
Full Narrative
The experimental research and developmental helicopter's left boom impacted water during an offshore low level survey flight. The pilot's accident report stated, "While flying an Easterly course line at approximately 25 knots over calm surface conditions, a course correction to the left was initiated with 2 degrees of left bank angle. This resulted in the left boom tip touching the surface of the water. The nose of the helicopter pitched down causing the main rotor blades to strike the water. The helicopter became inverted, sinking immediately. The elapsed time between the boom tip contacting the water and the helicopter becoming inverted was approximately three seconds." The pilot reported no mechanical malfunctions in reference to the survey flight.
Flight
Event TypeAccident
Event Time10:41 EDT
Nearest Airport0nm
Flight Plan FiledVFR
Flight Plan ActivatedYes
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftMd Helicopters 369FF
Tail NumberN530FF
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeTurboshaft
Engine DetailsRolls-Royce · 250-C30 · Turboshaft · 650
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 60 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
Wind250° @ 3 kt
Visibility10 sm
CeilingOvercast 2400 ft
Temperature / Dew Point66 F / 64 F
Altimeter30.19 inHg
Observation Time14:56
Weather SourceWFAC