Private Strip Airport
Aircraft Accident/Incident Report

Fallon, Nevada 89406
Thursday, March 19, 1998 14:50 PST

NTSB Narrative Summary Released at Completion of Accident

During the initial takeoff climb, the pilot reduced power and the rpm's dropped to zero, but there was no sound change in the engine. The pilot attempted to return to the airport for a precautionary landing. During the turn back to the airport, the engine began to run rough. The pilot was unable to make the runway and made an off-airport emergency landing and collided with ground obstructions. A post-accident investigation revealed an oil starvation failure of the engine. The oil pump's drive gear shaft had failed in torsional overload. Examination of the oil pump's driven gear revealed that the required bronze bushings between it and the driven gear shaft were absent. It was noted that the engine was overhauled 162 hours prior to the accident. During the engine overhaul, the oil pump was sent out for overhaul and was returned to the owner as a disassembled unit. The owner/pilot, who was not a certified A & P mechanic, reassembled the oil pump and reinstalled it on the airplane. A certified A & P mechanic reported that he did sign the logbook to this affect, but he did not monitor or inspect the work that had been completed by the owner.

NTSB Probable Cause Narrative

The aircraft owner/pilot's improper assembly of the engine oil pump, which resulted in failure of the unit and oil starvation failure of the engine. A factor was the lack of supervision of the owner/pilot's work by the A & P mechanic.

Event Information

Type of Event Accident
Event Date 3/19/1998
Event Day of the Week Thursday
Time of Event 1450
Event Time Zone Pacific Standard Time
Event City FALLON
Event State NEVADA
Event Country --
Zipcode of the event site 89406
Event Date Year 1998
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport PRIVATE STRIP
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 2
Degrees magnetic from airport 270
Airport Elevation 3500
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 2254 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 305
Weather Observation Facility ID LOL
Elevation of weather observation facility 3904
Distance of event from weather observation facility (units?) 17
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 50
Air Temperature at event time (in degrees celsius) 17
Dew Point at event time (in degress fahrenheit) -8
Wind Direction (degrees magnetic) 190
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 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 4
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1811
NTSB Notification Source --
NTSB Notification Date Mar 19 1998 12:00AM
NTSB Notification Time 1952
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Apr 9 2001 8:55AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8274M
NTSB Number LAX98LA124
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 210K
Aircraft Series Identifier 210K
Aircraft Serial Number 21059274
Certified Max Gross Weight 3800
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 6
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Mar 14 1998 12:00AM
Airframe hours since last inspection 9
Airframe Hours 5360
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name WALT WARDWELL
Aircraft Owner Street Address P.O. BOX 2431
Aircraft Owner City FALLON
Aircraft Owner State NV
Aircraft Owner Country
Aircraft Owner Zipcode 89407
Operator is an individual? --
Operator Name FALLON AIRMOTIVE INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 1500 RIO VISTA
Operator City FALLON
Operator State NV
Operator Country
Operator Zip code 89406
Operator Code XFLA
Owner has at least one certificate Yes - certificate holder
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 Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1450
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code RNO
Destination City
Destination State
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Apr 9 2001 8:55AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 16
Runway Length 4000
Runway Width 50
Sight Seeing flight No
Air Medical Flight No
Medical Flight --