Aircraft Accident/Incident Report

Los Banos, California 93635
Tuesady, December 28, 1993 12:00 PST

NTSB Narrative Summary Released at Completion of Accident

WHILE APPLYING HERBICIDE ON A COTTON FIELD UTILIZING A HELICOPTER EQUIPPED WITH A RECIPROCATING ENGINE AND CARBURETOR, THE ENGINE SUDDENLY QUIT. THE PILOT PERFORMED AN AUTOROTATION TO THE FIELD. DURING THE LANDING, THE HELICOPTER LANDED HARD AND RECEIVED DAMAGE TO THE LANDING GEAR, MAIN ROTOR BLADES, AND TAIL BOOM. THE PILOT REPORTED THAT THE ENGINE POWER LOSS WAS DUE TO CARBURETOR ICE.

NTSB Probable Cause Narrative

A FAILURE OF THE PILOT TO UTILIZE CARBURETOR HEAT. THE CARBURETOR ICING CONDITIONS WERE A FACTOR IN THE ACCIDENT.

Event Information

Type of Event Accident
Event Date 12/28/1993
Event Day of the Week Tuesday
Time of Event 1200
Event Time Zone Pacific Standard Time
Event City LOS BANOS
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93635
Event Date Year 1993
Event Date Month 12
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 Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
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) 8
Air Temperature at event time (in degrees celsius) 14
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 350
Variable Wind Indicator Unknown
Wind Speed (knots) 2
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1770
NTSB Notification Source --
NTSB Notification Date Dec 28 1993 12:00AM
NTSB Notification Time 1450
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 1:48PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N38110
NTSB Number LAX94LA084
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 Texas Helicopter
Aircraft Model OH-13E/M74L
Aircraft Series Identifier OH-13E/M74
Aircraft Serial Number 77-010
Certified Max Gross Weight 2850
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 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Sep 18 1993 12:00AM
Airframe hours since last inspection 91
Airframe Hours 4550
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name GACH, BERNARD
Aircraft Owner Street Address 668 SENECA ST.
Aircraft Owner City MERCED
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 95340
Operator is an individual? --
Operator Name GACH, BERNARD
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 668 SENECA
Operator City MERCED
Operator State CA
Operator Country
Operator Zip code 95340
Operator Code VHPG
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 Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
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 --