Aircraft Accident/Incident Report

Running Springs, California 92382
Wednesday, September 21, 2005 10:15 PDT

NTSB Narrative Summary Released at Completion of Accident

The helicopter was performing external load operations in the vicinity of tall trees when the main rotor impacted a tree and the helicopter descended nose first into the ground. At the time of rotor impact with the trees, the Vehicle Engine Monitoring Display (VEMD) recorded a high torque measurement (146 percent) and a low engine drive speed measurement (184 rpm), followed by a low torque (5.7 percent) and a high engine speed (511 rpm) and temperature (999C). As a result of the main rotor impact with trees the engine's torque twisted apart the engine to transmission drive shaft causing an engine over speed and over temperature condition. The operator was utilizing a 78.8-foot-long line for the external load operations, which in some cases put the main rotor of the helicopter below the treetops of the 80- to 90-foot trees. Examination of the helicopter revealed no evidence of a preimpact malfunction or failure of the control system or power plant.

NTSB Probable Cause Narrative

The pilot's failure to maintain an adequate clearance from trees while performing long line external lift operations.

Event Information

Type of Event Accident
Event Date 9/21/2005
Event Day of the Week Wednesday
Time of Event 1015
Event Time Zone Pacific Daylight Time
Event City Running Springs
Event State CALIFORNIA
Event Country --
Zipcode of the event site 92382
Event Date Year 2005
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 341311N
Event Location Longitude 1170309W
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 --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1130 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 270
Weather Observation Facility ID KL35
Elevation of weather observation facility 6748
Distance of event from weather observation facility (units?) 3
Time Zone of the weather observation PDT
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) 19
Dew Point at event time (in degress fahrenheit) -9
Wind Direction (degrees magnetic) 230
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) 30.28
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 20802
NTSB Notification Source FAA
NTSB Notification Date Sep 21 2005 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Dec 28 2006 9:08AM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-FSDO-Riverside, CA

Aircraft Involved

Aircraft #1

Aircraft Registration Number N814CE
NTSB Number LAX05LA308
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 133: Rotorcraft Ext. Load
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Eurocopter
Aircraft Model AS350B3
Aircraft Series Identifier --
Aircraft Serial Number 3847
Certified Max Gross Weight 6173
Aircraft Category Helicopter
Aircraft Registration Class --
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 Aug 1 2005 12:00AM
Airframe hours since last inspection --
Airframe Hours 320.3
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name ICX Corporation
Aircraft Owner Street Address 2 Summit Park Dr #300
Aircraft Owner City Cleveland
Aircraft Owner State OH
Aircraft Owner Country USA
Aircraft Owner Zipcode 44131
Operator is an individual? No
Operator Name Southern California Edison
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 2161 E Avion St
Operator City Ontario
Operator State CA
Operator Country USA
Operator Zip code 91761
Operator Code --
Owner has at least one certificate --
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation External Load
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) External Load
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code --
Departure City Running Springs
Departure State CA
Departure Country USA
Departure Time 1015
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City Running Springs
Destination State CA
Destination Country USA
Specific Phase of Flight Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 20 2006 2:56PM
User who most recently changed record COOS
Since inspection or accident Time of Accident
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --