Cloverdale Airport
Aircraft Accident/Incident Report

Cloverdale, California 95425
Friday, September 21, 1990 9:15 PDT

NTSB Narrative Summary Released at Completion of Accident

AN AEROSPATIALE AS350B HELICOPTER LANDED HARD WHILE PRACTICING HOVERING AUTOROTATIONS. THE CFI INDICATED THAT THE STUDENT PILOT WAS ON THE CONTROLS AND ABRUPTLY LOWERED THE COLLECTIVE CONTROL DURING THE LAST HOVERING AUTOROTATION. THE HELICOPTER LANDED HARD. THE CFI ALSO INDICATED THAT HE FAILED TO ADEQUATELY GUARD THE COLLECTIVE CONTROL DURING THE LAST HOVERING AUTOROTATION.

NTSB Probable Cause Narrative

THE IMPROPER PROCEDURE EMPLOYED BY THE STUDENT PILOT. CONTRIBUTING TO THE ACCIDENT WAS FAILURE OF THE CFI TO ADEQUATELY GUARD THE FLIGHT CONTROLS TO APPLY TIMELY CORRECTIVE ACTIONS.

Event Information

Type of Event Accident
Event Date 9/21/1990
Event Day of the Week Friday
Time of Event 915
Event Time Zone Pacific Daylight Time
Event City CLOVERDALE
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95425
Event Date Year 1990
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport CLOVERDALE
Event Location Nearest Airport ID O60
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
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) 24
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 270
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
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) 2341
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 45122
Date of most recent change to record Dec 12 2000 5:22PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N700TV
NTSB Number LAX90LA341
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 AEROSPATIALE
Aircraft Model AS350B
Aircraft Series Identifier AS350B
Aircraft Serial Number 1838
Certified Max Gross Weight 4200
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 6
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection --
Airframe hours since last inspection 31
Airframe Hours 1756
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name IATS
Aircraft Owner Street Address 369 VAN NESS WAY, SUITE 720
Aircraft Owner City TORRANCE
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 90501
Operator is an individual? --
Operator Name RESORT AVIATION
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P.O. BOX 1297
Operator City TORRANCE
Operator State CA
Operator Country
Operator Zip code 90501
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 209
Departure City CLEAR LAKE
Departure State CA
Departure Country
Departure Time 830
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 --