Aircraft Accident/Incident Report

Hollister, California 95023
Sunday, March 18, 2001 13:45 PST

NTSB Narrative Summary Released at Completion of Accident

The private pilot lost control of the single-engine helicopter after taking off from a field behind his house and it landed hard, then rolled over after he reduced power and lowered the collective. The pilot reported the helicopter was approximately 50-70 feet in the air when the helicopter violently rotated to the left approximately 90 degrees then started to spin to the right 180 degrees. The pilot added there was no normal response to control inputs. The pilot reduced power and lowered the collective. The helicopter impacted the ground tail first, and spun around to the left before coming to rest on its left side. Inspection of the antitorque control system revealed no preimpact anomalies.

NTSB Probable Cause Narrative

the pilot's inadequate use of the antitorque controls and subsequent failure to maintain directional control of the helicopter during the takeoff initial climb.

Event Information

Type of Event Accident
Event Date 3/18/2001
Event Day of the Week Sunday
Time of Event 1345
Event Time Zone Pacific Standard Time
Event City Hollister
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95023
Event Date Year 2001
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 365200N
Event Location Longitude 1212200W
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 Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1353 Pacific Standard Time
Direction of event from weather observation facility (degrees) 210
Weather Observation Facility ID SNS
Elevation of weather observation facility 84
Distance of event from weather observation facility (units?) 16
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 21
Dew Point at event time (in degress fahrenheit) 14
Wind Direction (degrees magnetic) 300
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 9
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.1
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
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) 14454
NTSB Notification Source FAA
NTSB Notification Date Mar 18 2001 12:00AM
NTSB Notification Time 1405
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Nov 25 2003 11:36AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-FSDO-SJC

Aircraft Involved

Aircraft #1

Aircraft Registration Number N637H
NTSB Number LAX01LA120
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Enstrom
Aircraft Model F-28C
Aircraft Series Identifier --
Aircraft Serial Number 395
Certified Max Gross Weight 2600
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 3
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 --
Airframe Hours 1800
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Thomas A. Eisenach
Aircraft Owner Street Address --
Aircraft Owner City Hollister
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 95023
Operator is an individual? No
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? --
Certified for Part 133 or 137 Operation --
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 Yes
Departure Airport Code --
Departure City Hollister
Departure State CA
Departure Country USA
Departure Time 1345
Departure Time Zone PST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City Hollister
Destination State CA
Destination Country USA
Specific Phase of Flight Hover
Report sent to ICAO? No
Evacuation occurred Yes
Date of most recent change to record Sep 23 2003 3:04PM
User who most recently changed record COOS
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --