Aircraft Accident/Incident Report

Thermal, California 92274
Tuesady, August 16, 1988 20:05 PDT

NTSB Narrative Summary Released at Completion of Accident

SHORTLY AFTER REFUELING THE HELICOPTER & RELOADING THE HOPPER, THE PLT TOOK OFF & WAS STARTING TO SPRAY A FIELD WHEN THE ENG SUDDENLY LOST POWER. THE PLT SAID THE HELICOPTER WAS DSCNDG FROM ABOUT 30 FT WHEN THE POWER LOSS OCCURRED; THUS, HE BARELY HAD TIME TO TAKE CORRECTIVE ACTION. THE HELICOPTER TOUCHED DOWN IN AN UPRIGHT ATTITUDE, BUT IT SKIDDED INTO A 1 FT BERM, ROLLED OVER & CAME TO REST IN A MUDDY/FLOODED FIELD. MUD & WATER WERE FOUND IN THE ACFT FUEL SYSTEM. THE EVIDENCE INDICATED THAT THE FUEL CONTAMINATION WAS NOT THE RESULT OF IMPACT & INVERSION. A CHECK OF THE MOBILE REFUELING UNIT REVEALED IT CONTAINED CRACKS WHICH ALLOWED MOISTURE & OTHER CONTAMINANTS TO ENTER. ALSO, THE MOBILE UNIT'S FUEL FILTER WAS IMPROPERLY INSTALLED & WAS NOT REMOVING CONTAMINANTS FROM THE FUEL.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 8/16/1988
Event Day of the Week Tuesday
Time of Event 2005
Event Time Zone Pacific Daylight Time
Event City THERMAL
Event State CALIFORNIA
Event Country --
Zipcode of the event site 92274
Event Date Year 1988
Event Date Month 8
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 --
Weather Briefing Completeness Unknown
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 Dusk
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) 30
Air Temperature at event time (in degrees celsius) 32
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 500
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
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 --
Injury Total All 1
Investigating Agency FAA
NTSB Docket Number (internal use) 1786
NTSB Notification Source --
NTSB Notification Date Aug 16 1988 12:00AM
NTSB Notification Time 2115
Fiche Number and/or location -used to find docket information 37962
Date of most recent change to record Dec 13 2000 12:03PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N65120
NTSB Number LAX88DUG06
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 UH-12E
Aircraft Series Identifier UH-12E
Aircraft Serial Number 1469
Certified Max Gross Weight 3100
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 Annual
Date of Last Inspection May 2 1988 12:00AM
Airframe hours since last inspection 42
Airframe Hours 2340
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Yes
ELT Type --
Aircraft Owner Name MONMOUTH COUNTY NJ
Aircraft Owner Street Address P.O. BOX 1255
Aircraft Owner City FREEHOLD
Aircraft Owner State NJ
Aircraft Owner Country
Aircraft Owner Zipcode 07728
Operator is an individual? --
Operator Name WEST FARM AIR, INC
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 4410 LAVENDER COURT
Operator City CHINO
Operator State CA
Operator Country
Operator Zip code 91710
Operator Code RQKG
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 2004
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 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 --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --