Aircraft Accident/Incident Report

Huron, California 93234
Monday, October 16, 1989 3:30 PDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT COMPLETED AN AERIAL SPRAYING FLIGHT, LANDED AND PICKED UP HIS FLAGMAN TO TRANSPORT HIM TO ANOTHER FIELD. WHILE ENROUTE TO THE FIELD AT ABOUT 50 FT AGL THE HELICOPTER SUSTAINED A TOTAL ENGINE FAILURE. DURING THE ENSUING AUTOROTATION THE PILOT MISJUDGED THE FLARE ALTITUDE AND SUSTAINED A HARD LANDING. THE INVESTIGATION REVEALED THAT THE NO. 3 CONNECTING ROD FAILED DUE TO OIL STARVATION.

NTSB Probable Cause Narrative

THE PILOT FAILED TO PROPERLY PREFLIGHT THE AIRPLANE BEFORE DEPARTING ON THE ACCIDENT FLIGHT AND MISJUDGED THE FLARE DURING THE ENSUING AUTOROTATION. FACTORS RELATING TO THIS ACCIDENT WERE OIL STARVATION AND TOTAL FAILURE OF THE CONNECTING ROD.

Event Information

Type of Event Accident
Event Date 10/16/1989
Event Day of the Week Monday
Time of Event 330
Event Time Zone Pacific Daylight Time
Event City HURON
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93234
Event Date Year 1989
Event Date Month 10
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 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 352 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 5
Weather Observation Facility ID NLC
Elevation of weather observation facility 350
Distance of event from weather observation facility (units?) 16
Time Zone of the weather observation PDT
Lighting Conditions Night/Dark
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) 11
Dew Point at event time (in degress fahrenheit) 3
Wind Direction (degrees magnetic) 200
Variable Wind Indicator Unknown
Wind Speed (knots) 4
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious 1
Injury Total All 2
Investigating Agency FAA
NTSB Docket Number (internal use) 2235
NTSB Notification Source --
NTSB Notification Date Oct 16 1989 12:00AM
NTSB Notification Time 330
Fiche Number and/or location -used to find docket information 41996
Date of most recent change to record Dec 13 2000 1:08PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4026G
NTSB Number LAX90DVA01
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 137: Agricultural
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name HILLER
Aircraft Model 12E
Aircraft Series Identifier 12E
Aircraft Serial Number 5049
Certified Max Gross Weight 2800
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 100 Hour
Date of Last Inspection Oct 8 1989 12:00AM
Airframe hours since last inspection 58
Airframe Hours 3219
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name RUSSELL W. SPENCER
Aircraft Owner Street Address 1803 E. ELM
Aircraft Owner City COALINGA
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 93210
Operator is an individual? --
Operator Name HEALY, JOSEPH G.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P.O. BOX 247
Operator City HURON
Operator State CA
Operator Country
Operator Zip code 93234
Operator Code
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Agriculture
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Unknown
Indicates Domestic or International Flight Unknown
Operator carrying Pax/Cargo/Mail Unknown
Type of Flying (Per_Bus / Primary) Aerial Application
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 0
Departure Time Zone
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 Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --