Aircraft Accident/Incident Report

Sunny Isles, Florida 33160
Sunday, October 17, 1999 12:00 EDT

NTSB Narrative Summary Released at Completion of Accident

After about 1 hour of flight at about 200 feet offshore, the helicopter was observed to descend from about 500 feet agl, to about 200 feet agl, and head directly toward the beach. Once overhead the beach, the pilot stated the cylinder head and oil temperature indications started rising rapidly, and he looked for a place to autorotate. Finding no suitable area due to the density of bathers and losing power, the pilot elected to ditch offshore in about 8 feet of water. Post crash test run of the engine revealed normal operation except that the magneto timing had been adjusted as far advanced as possible. Factory post crash analysis of the main rotor clutch and shaft revealed the clutch had sustained two severe overtorque events, most likely as a result of two or more main rotor blade strikes during the accident.

NTSB Probable Cause Narrative

A loss of engine power while maneuvering due to improper ignition timing by unknown person(s) resulting in an emergency descent and collision with the water.

Event Information

Type of Event Accident
Event Date 10/17/1999
Event Day of the Week Sunday
Time of Event 1200
Event Time Zone Eastern Daylight Time
Event City SUNNY ISLES
Event State FLORIDA
Event Country --
Zipcode of the event site 33160
Event Date Year 1999
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1156 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 230
Weather Observation Facility ID MIA
Elevation of weather observation facility 11
Distance of event from weather observation facility (units?) 18
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 29
Dew Point at event time (in degress fahrenheit) 22
Wind Direction (degrees magnetic) 270
Variable Wind Indicator Unknown
Wind Speed (knots) 12
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 1773
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1263
NTSB Notification Source --
NTSB Notification Date Oct 17 1999 12:00AM
NTSB Notification Time 1215
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Mar 4 2001 7:08AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N83574
NTSB Number MIA00LA005
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Robinson
Aircraft Model R-22
Aircraft Series Identifier R-22
Aircraft Serial Number 0301
Certified Max Gross Weight 1370
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Feb 22 1999 12:00AM
Airframe hours since last inspection 80
Airframe Hours 1996
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name TERRY ROBERTSON
Aircraft Owner Street Address 10618 DENOEU RD.
Aircraft Owner City BOYNTON BEACH
Aircraft Owner State FL
Aircraft Owner Country
Aircraft Owner Zipcode 33437
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code FXE
Departure City FT. LAUDERDALE
Departure State FL
Departure Country
Departure Time 1100
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code X44
Destination City WATSON ISLAND
Destination State FL
Destination Country
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 4 2001 7:08AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --