Aircraft Accident/Incident Report

Arvin, California 93203
Monday, May 16, 1994 11:24 PDT

NTSB Narrative Summary Released at Completion of Accident

WHILE IN CRUISE FLIGHT AT 10,000 FEET MEAN SEA LEVEL, THE ENGINE SUDDENLY QUIT. THE PILOT DECLARED AN EMERGENCY AND RECEIVED VECTORS TO A SMALL AIRSTRIP. THE PILOT COULD NOT LOCATE THE AIRSTRIP AND ELECTED TO LAND ON A ROAD; HOWEVER, POWER LINES PREVENTED ITS USE. THE PILOT LANDED IN AN ADJACENT FIELD AND THE AIRPLANE NOSED OVER IN SOFT TERRAIN. AN EXAMINATION OF THE ENGINE REVEALED THAT THE CRANKSHAFT GEAR TEETH HAD FAILED DUE TO FATIGUE. INTERNAL ENGINE GEARS MATING TO THE CRANKSHAFT GEAR WERE NOT DAMAGED. THE CRANKSHAFT WAS INSTALLED IN THE ACCIDENT ENGINE 644 HOURS PRIOR TO THE ACCIDENT AFTER BEING MAGNAFLUXED AND NITRIDE. NO RECORDS OF THE CRANKSHAFT MAINTENANCE HISTORY, PRIOR TO INSTALLATION IN THE ACCIDENT ENGINE, WERE LOCATED.

NTSB Probable Cause Narrative

a fatigue failure of the crankshaft gear teeth.

Event Information

Type of Event Accident
Event Date 5/16/1994
Event Day of the Week Monday
Time of Event 1124
Event Time Zone Pacific Daylight Time
Event City ARVIN
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93203
Event Date Year 1994
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 Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1124 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 290
Weather Observation Facility ID BFL
Elevation of weather observation facility 376
Distance of event from weather observation facility (units?) 18
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 5000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 12
Air Temperature at event time (in degrees celsius) 17
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) 312
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
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) 780
NTSB Notification Source --
NTSB Notification Date May 16 1994 12:00AM
NTSB Notification Time 1200
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 6 2000 11:14AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N738VE
NTSB Number LAX94LA219
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 172N
Aircraft Series Identifier 172N
Aircraft Serial Number 17270265
Certified Max Gross Weight 2300
Aircraft Category Airplane
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Apr 1 1994 12:00AM
Airframe hours since last inspection 59
Airframe Hours 2643
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name AV AVIATION
Aircraft Owner Street Address 4555 W. AVE. G, SUITE 2
Aircraft Owner City LANCASTER
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 93536
Operator is an individual? --
Operator Name AV AVIATION
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 4555 W. AVE. G, SUITE 2
Operator City LANCASTER
Operator State CA
Operator Country
Operator Zip code 93536
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) Business
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code WJF
Departure City LANCASTER
Departure State CA
Departure Country
Departure Time 1020
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code SJC
Destination City SAN JOSE
Destination State CA
Destination Country
Specific Phase of Flight Cruise
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 --