Aircraft Accident/Incident Report

Kent, Washington 98032
Saturday, April 6, 1991 11:24 PST

NTSB Narrative Summary Released at Completion of Accident

DURING A SOLO INSTRUCTIONAL FLIGHT, THE PILOT WAS PRACTIICNG HOVER TO LANDING MANEUVERS. DURING THE LANDING, THE PILOT NOTED THAT THE HELICOPTER'S ATTITUDE WAS TITLED TO THE LEFT. THE PILOT APPLIED RIGHT CYCLIC TO STABILIZE THE HOVER. HOWEVER, THE LEFT SKID CONTACTED THE GROUND. THE HELICOPTER CONTINUED TO ROLL TO THE LEFT AND CAME TO REST ON ITS SIDE. THE PILOT REPORTED THAT THERE WERE NO MECHAANICAL FAILURES OR MALFUNCTIONS WITH THE HELICOPTER AT THE TIME OF THE ACCIDENT.

NTSB Probable Cause Narrative

THE PILOT'S INADEQUATE REMEDIAL ACTION TO CORRECT THE IMMINENT DYNAMIC ROLLOVER. FACTORS TO THE ACCIDENT WERE: THE PILOT'S POORLY PLANNED APPROACH AND LACK OF TOTOAL FLIGHT EXPERIENCE.

Event Information

Type of Event Accident
Event Date 4/6/1991
Event Day of the Week Saturday
Time of Event 1124
Event Time Zone Pacific Standard Time
Event City KENT
Event State WASHINGTON
Event Country --
Zipcode of the event site 98032
Event Date Year 1991
Event Date Month 4
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 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1053 Pacific Standard Time
Direction of event from weather observation facility (degrees) 150
Weather Observation Facility ID BFI
Elevation of weather observation facility 18
Distance of event from weather observation facility (units?) 5
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height 2300
Lowest Non-Ceiling Height 1900
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 6
Air Temperature at event time (in degrees celsius) -18
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) 190
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 176
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 43259
Date of most recent change to record Dec 18 2002 11:28AM
User who most recently changed record NTSB\GIUV
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N24176
NTSB Number SEA91LA078
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name ROBINSON
Aircraft Model R22 BETA
Aircraft Series Identifier R22 BETA
Aircraft Serial Number 0563
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 Unknown
Date of Last Inspection --
Airframe hours since last inspection 0
Airframe Hours --
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name
Aircraft Owner Street Address
Aircraft Owner City
Aircraft Owner State
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name CLASSIC HELICOPTER
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 6505 PERIMETER RD
Operator City SEATTLE
Operator State WA
Operator Country
Operator Zip code 98108
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) Instructional
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code BFI
Departure City SEATTLE
Departure State WA
Departure Country
Departure Time 1020
Departure Time Zone PST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Hover
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
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 --