Aircraft Accident/Incident Report

Irwindale, California 91706
Friday, May 1, 1998 14:02 PDT

NTSB Narrative Summary Released at Completion of Accident

The 10-hour student pilot reported that they had performed several autorotations and normal approaches to sites chosen by the instructor. He was flying the helicopter and the instructor was following on the controls. They were performing a normal landing approach when both he and the flight instructor were startled to see electrical power transmission lines in front of them. The instructor took control of the helicopter and he recalled flying under one group of power lines that he viewed high on the windshield. The instructor then made a pull-up and the rotor impacted a second group of wires and the helicopter fell approximately 60 feet to the ground landing on its left side. The student reported there were no mechanical problems with the aircraft prior to impacting the wires. The operator reported that the instructor flew in this practice area almost daily and was well aware of the presence of the power lines. The student was Japan and spoke limited English.

NTSB Probable Cause Narrative

The failure of the pilot to observe in a timely manner and maintain clearance from electrical power transmission wires and her improper maneuver to avoid the obstruction.

Event Information

Type of Event Accident
Event Date 5/1/1998
Event Day of the Week Friday
Time of Event 1402
Event Time Zone Pacific Daylight Time
Event City IRWINDALE
Event State CALIFORNIA
Event Country --
Zipcode of the event site 91706
Event Date Year 1998
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
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 1346 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 223
Weather Observation Facility ID EMT
Elevation of weather observation facility 296
Distance of event from weather observation facility (units?) 5
Time Zone of the weather observation PDT
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) 7
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 190
Variable Wind Indicator Unknown
Wind Speed (knots) 6
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 789
NTSB Notification Source --
NTSB Notification Date May 1 1998 12:00AM
NTSB Notification Time 1435
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Feb 16 2001 11:56AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8365D
NTSB Number LAX98FA149
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Robinson
Aircraft Model R22
Aircraft Series Identifier R22
Aircraft Serial Number 313
Certified Max Gross Weight 1300
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 Apr 26 1998 12:00AM
Airframe hours since last inspection 20
Airframe Hours 2486
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name WILLIAM R. PAGE, MD, INC.
Aircraft Owner Street Address 39300 BOB HOPE DR. B1113
Aircraft Owner City RANCHO MIRAGE
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 92270
Operator is an individual? --
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? 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 POC
Departure City LA VERNE
Departure State CA
Departure Country
Departure Time 1315
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 --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 20 2001 6:29PM
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 --