Aircraft Accident/Incident Report

Trimmer, California
Tuesady, January 8, 1985 9:15 PST

NTSB Narrative Summary Released at Completion of Accident

THE PLT STATED THE HELICOPTER LOST PWR DURING CRUISE WHEN HE ATTEMPTED TO ADD PWR TO CLIMB. HE STATED THAT N2 DECREASED ALONG WITH THE ACTIVATION OF VISUAL AND AUDIO ENGINE OUT WARNINGS. AN AUTOROTATION WAS PERFORMED TO A ROAD, HOWEVER, THE HELICOPTER SLID OFF THE ROAD AND DOWN A 50 DEG SLOPE IN THE TERRAIN BEFORE COMING TO REST. POST ACCIDENT TESTS REVEALED THE FUEL GOVERNOR, P/N 104100A12-A8, HAD AN EXCESSIVE LEAKAGE RATE AT THE BYPASS VALVUE AND THE DECELERATION AND SLOPE TESTS WERE OUT OF LIMITS. WHEN RETESTED, THE GOVERNOR WAS FOUND CAPABLE OF NORMAL OPERATION.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 1/8/1985
Event Day of the Week Tuesday
Time of Event 915
Event Time Zone Pacific Standard Time
Event City TRIMMER
Event State CALIFORNIA
Event Country --
Zipcode of the event site
Event Date Year 1985
Event Date Month 1
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 851 Pacific Standard Time
Direction of event from weather observation facility (degrees) 60
Weather Observation Facility ID FAT
Elevation of weather observation facility 332
Distance of event from weather observation facility (units?) 22
Time Zone of the weather observation PST
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) 10
Air Temperature at event time (in degrees celsius) 9
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) 310
Variable Wind Indicator Unknown
Wind Speed (knots) 5
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 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 NTSB
NTSB Docket Number (internal use) 60
NTSB Notification Source --
NTSB Notification Date Jan 8 1985 12:00AM
NTSB Notification Time 1040
Fiche Number and/or location -used to find docket information 27186
Date of most recent change to record Jan 2 2001 9:14AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N59549
NTSB Number LAX85FA101
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BELL
Aircraft Model 206B
Aircraft Series Identifier 206B
Aircraft Serial Number 1387
Certified Max Gross Weight 3200
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 5
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Dec 7 1984 12:00AM
Airframe hours since last inspection 11
Airframe Hours 4813
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name ROGERS HELICOPTER, INC.
Aircraft Owner Street Address 2403 E. BULLARD P.O. BOX 4
Aircraft Owner City CLOVIS
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 93612
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 Yes - certificate holder
Other Operator of large aircraft? No
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) Positioning
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code
Departure City FRESNO
Departure State CA
Departure Country
Departure Time 900
Departure Time Zone PST
Destination Same as Local Flt --
Destination Airport Code
Destination City LAKE WISHON
Destination State CA
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
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 --