Aircraft Accident/Incident Report

Fillmore, California 93015
Monday, September 30, 1996 13:00 PDT

NTSB Narrative Summary Released at Completion of Accident

According to the flight instructor (CFI), he and the student pilot were on an instructional flight, and the student was performing hovering autorotations to a clear, moist, sandy area of a river bed. The CFI reported that the student began an autorotation from a 3-foot hover when, about 1 foot above the ground, the helicopter began to drift to the left. The CFI took the controls and applied right cyclic as the rotor rpm continued to decay. His control input did not stop the helicopter's accelerating leftward movement. As the left skid touched down on sandy terrain, the helicopter experienced a dynamic rollover and rolled onto its left side. The wind at the accident site was estimated to be westerly at about 10 knots.

NTSB Probable Cause Narrative

the flight instructor's inadequate supervision and delay in taking remedial action to stop the aircraft's lateral movement, which resulted in a dynamic rollover after touchdown.

Event Information

Type of Event Accident
Event Date 9/30/1996
Event Day of the Week Monday
Time of Event 1300
Event Time Zone Pacific Daylight Time
Event City FILLMORE
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93015
Event Date Year 1996
Event Date Month 9
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 1247 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 163
Weather Observation Facility ID VNY
Elevation of weather observation facility 799
Distance of event from weather observation facility (units?) 15
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 3
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 14
Wind Direction (degrees magnetic) 270
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1769
NTSB Notification Source --
NTSB Notification Date Oct 1 1996 12:00AM
NTSB Notification Time 920
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 10:22AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N59576
NTSB Number LAX96LA346
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 Bell
Aircraft Model 206B
Aircraft Series Identifier 206B
Aircraft Serial Number 1473
Certified Max Gross Weight 3200
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 5
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Apr 20 1996 12:00AM
Airframe hours since last inspection 44
Airframe Hours 28844
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name RICHARD DELANEY
Aircraft Owner Street Address 10319 SALA PLACE
Aircraft Owner City SUN VALLEY
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 91352
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code WHP
Departure City LOS ANGELES
Departure State CA
Departure Country
Departure Time 1230
Departure Time Zone PDT
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 Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
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 --