Rialto Municipal Airport
Aircraft Accident/Incident Report

Rialto, California 92376
Monday, November 22, 2004 15:10 PST

NTSB Narrative Summary Released at Completion of Accident

The helicopter collided with terrain during a pinnacle departure attempt. After departing, the pilot configured the helicopter into a hover about 3 feet above ground level (agl) and verified that the cockpit gauges were all displaying the appropriate indications. In an attempt to depart the area, he said he "began to trade altitude for airspeed" while maneuvering in a right turn, toward his planned escape route consisting of downsloping terrain. While in the turn, the rotor rpm became low and he manipulated the throttle control for full power, simultaneously lowering the collective. Despite his attempts, the rotor rpm failed to increase and the helicopter continued to descend. In an effort to cushion the impact, he raised the collective just before the skids contacted terrain. The helicopter rolled downhill, coming to rest on its left side. The engine manufacturer performed an engine test run; there were no discrepancies or anomalies that would indicate the engine was not capable of running and producing power prior to the mishap.

NTSB Probable Cause Narrative

the pilot's failure to maintain adequate rotor rpm and altitude/clearance during the takeoff initial climb.

Event Information

Type of Event Accident
Event Date 11/22/2004
Event Day of the Week Monday
Time of Event 1510
Event Time Zone Pacific Standard Time
Event City Rialto
Event State CALIFORNIA
Event Country --
Zipcode of the event site 92376
Event Date Year 2004
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 342000N
Event Location Longitude 1172400W
Event Location Airport Rialto Municipal Airport
Event Location Nearest Airport ID L67
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 3
Degrees magnetic from airport 360
Airport Elevation 1455
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1453 Pacific Standard Time
Direction of event from weather observation facility (degrees) 220
Weather Observation Facility ID ONT
Elevation of weather observation facility 901
Distance of event from weather observation facility (units?) 13
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height 7500
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 12
Dew Point at event time (in degress fahrenheit) 3
Wind Direction (degrees magnetic) 270
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.99
Density Altitude (feet) --
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) 19372
NTSB Notification Source FAA
NTSB Notification Date Nov 22 2004 12:00AM
NTSB Notification Time 1700
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Mar 28 2006 1:55PM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-RAL-FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N45012
NTSB Number LAX05LA039
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 Schweizer
Aircraft Model 269C
Aircraft Series Identifier --
Aircraft Serial Number 900962
Certified Max Gross Weight 2050
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 Sep 11 2004 12:00AM
Airframe hours since last inspection 94.3
Airframe Hours 7720.6
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name Western Operations
Aircraft Owner Street Address 1640 Miro Way Unit D
Aircraft Owner City Rialto
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 92377
Operator is an individual? No
Operator Name Western Operations, Inc.
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 1640 Miro Way
Operator City Rialto
Operator State CA
Operator Country USA
Operator Zip code 92377
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 No
Departure Point Same as Event Yes
Departure Airport Code L67
Departure City Rialto
Departure State CA
Departure Country USA
Departure Time 1500
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 - in ground effect
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Jan 3 2006 4:17PM
User who most recently changed record COOS
Since inspection or accident Last Inspection
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --