Aircraft Accident/Incident Report

Fresno, California 93726
Tuesady, July 30, 2002 9:15 PDT

NTSB Narrative Summary Released at Completion of Accident

The helicopter collided with the uneven ground and rolled over during a quick stop maneuver. After a series of maneuvers, the certified flight instructor (CFI) repositioned the helicopter and entered a quick stop demonstration for the student. He "misjudged the terrain and wind conditions" and the helicopter settled quickly to the ground. During the descent, the CFI raised the collective and the rotor rpm decreased. The helicopter impacted the ground, became airborne, and then impacted the ground a second time. During the impact sequence, the main rotor struck the tail boom. The helicopter came to rest on its left side. The accident site and helicopter wreckage were examined by an FAA inspector. He reported observing a series of ground scars and wreckage debris that extended for 195 feet and culminated in the main helicopter wreckage. The first identifiable ground scars consisted of two parallel thin scars in the ground on the crest of a hillock, which were dimensionally consistent with the right and left skids; the scars extended 36 feet and terminated at the edge of a wash. At a distance of 105 feet across the wash, ground scars consistent with the tail rotor and stinger assemblies were noted; the tail rotor gearbox and blade assembly, along with the most aft portion of the tail boom, were found at this point. For the remaining 54 feet uphill to the location of the main wreckage, other ground scars and wreckage debris consistent with the skids were located.

NTSB Probable Cause Narrative

The failure of the flight instructor to ensure maintenance of an adequate terrain clearance altitude while performing low level maneuvers.

Event Information

Type of Event Accident
Event Date 7/30/2002
Event Day of the Week Tuesday
Time of Event 915
Event Time Zone Pacific Daylight Time
Event City Fresno
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93726
Event Date Year 2002
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 364300N
Event Location Longitude 1194900W
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 956 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 300
Weather Observation Facility ID KFAT
Elevation of weather observation facility 278
Distance of event from weather observation facility (units?) 10
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 20000
Sky/Lowest/Cloud Conditions Scattered
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) 25
Dew Point at event time (in degress fahrenheit) 15
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.93
Density Altitude (feet) 1593
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 14959
NTSB Notification Source FAA Fresno FSDO
NTSB Notification Date Jul 30 2002 12:00AM
NTSB Notification Time 1056
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Mar 2 2004 8:06AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-FSDO-Fresno, CA

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4074T
NTSB Number LAX02LA243
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Robinson
Aircraft Model R22 Beta
Aircraft Series Identifier --
Aircraft Serial Number 1787
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 100 Hour
Date of Last Inspection Jun 13 2002 12:00AM
Airframe hours since last inspection 86
Airframe Hours 6269
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Golden Eagle Enterprises, Inc.
Aircraft Owner Street Address 4885 E. Shields, Suite 201
Aircraft Owner City Fresno
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 93726
Operator is an individual? No
Operator Name Mazzei Flying Service
Operator Same as Owner? No
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code KFAT
Departure City Fresno
Departure State CA
Departure Country USA
Departure Time 900
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 Maneuvering
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Nov 21 2003 4:53PM
User who most recently changed record COOS
Since inspection or accident Last Inspection
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --