North Las Vegas Airport
Aircraft Accident/Incident Report

North Las Vegas, Nevada 89130
Saturday, May 19, 2001 10:32 PDT

NTSB Narrative Summary Released at Completion of Accident

The airplane collided with obstructions during a forced landing precipitated by a loss of engine power. In a radio exchange with the control tower, the pilot reported a total loss of oil pressure. The airplane had accrued about 1 hour of flight time since a owner-assisted annual inspection was accomplished during which the owner changed the oil and filter element. Post accident examination of the underside of the forward fuselage/engine compartment area revealed an oil filter element hanging free from the oil filter base by the installation safety wire and fresh oil on the underside of the fuselage. The airplane had a STC'd remote mounted oil filter base that used a screw on filter element. The installation location was in the aft engine compartment on the forward side of the firewall, requiring a blind insertion of the element by feel only onto the threaded shaft. The only way to see the element pad and threaded shaft is by mirror or by looking up through the right cowl flap with a light. Examination of the filter base revealed evidence of thread damage to the first complete thread in the bore. The first 5 or 6 threads of the shaft were damaged, also with a cross the thread appearance to the first 2 or 3 threads. Other threads were damaged and had the appearance of attempted file repair. Both ends of the shaft revealed internal damage to the bore of the shaft. During manufacture, the shaft is permanently factory installed to a depth about 5 threads with red Locktite and torqued into the base. No evidence of Locktite was noted on the shaft or in the base bore. According to the Aircraft Maintenance Technician and IA who approved the annual inspection, the pilot/owner had recently commented to him that other filter elements could be used besides the one specified for the system. The pilot reportedly told the mechanic that you could either unscrew the 3/4-16 shaft from the other elements or the ones without a shaft could be screwed onto the shaft in the base unit.

NTSB Probable Cause Narrative

The pilot/owner's failure to correctly install the oil filter, which resulted in oil exhaustion and a loss of engine power. Also causal was his attempt to modify the design of the oil filter element adapter by breaking the bond between the base and the threaded shaft, which resulted in a loss of torque during filter element installation.

Event Information

Type of Event Accident
Event Date 5/19/2001
Event Day of the Week Saturday
Time of Event 1032
Event Time Zone Pacific Daylight Time
Event City NORTH LAS VEGAS
Event State NEVADA
Event Country --
Zipcode of the event site 89130
Event Date Year 2001
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 361242N
Event Location Longitude 1151144W
Event Location Airport North Las Vegas
Event Location Nearest Airport ID VGT
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0.5
Degrees magnetic from airport 255
Airport Elevation 2203
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1056 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 255
Weather Observation Facility ID LAS
Elevation of weather observation facility 2177
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 15000
Lowest Non-Ceiling Height 10000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 10
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.98
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 14616
NTSB Notification Source FAA
NTSB Notification Date May 19 2001 12:00AM
NTSB Notification Time 1050
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Dec 30 2003 8:55AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-FSDO LAS VEGAS, NV

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9820R
NTSB Number LAX01FA186
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Beech
Aircraft Model M35
Aircraft Series Identifier --
Aircraft Serial Number D-6364
Certified Max Gross Weight 2950
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 Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection May 4 2001 12:00AM
Airframe hours since last inspection 1
Airframe Hours 4294
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name FRANKLIN P. STREET
Aircraft Owner Street Address --
Aircraft Owner City NORTH LAS VEGAS
Aircraft Owner State NV
Aircraft Owner Country USA
Aircraft Owner Zipcode 89030
Operator is an individual? No
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 None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
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) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code VGT
Departure City NORTH LAS VEGAS
Departure State NV
Departure Country USA
Departure Time 1020
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City NORTH LAS VEGAS
Destination State NV
Destination Country USA
Specific Phase of Flight Emergency landing
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Oct 30 2003 6:22PM
User who most recently changed record COOS
Since inspection or accident Time of Accident
Event Location Runway Number and Location 7
Runway Length 5004
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --