Weaverville Airport
Aircraft Accident/Incident Report

Lewiston, California 96052
Friday, February 17, 2012 11:55 PST

NTSB Narrative Summary Released at Completion of Accident

As the airplane climbed to an altitude of about 4,000 feet mean sea level after departure, the engine quit and would not restart. The pilot landed the airplane on a 3-lane section of highway; however, as the highway narrowed, the airplane’s left wing struck two road signs and was substantially damaged. On-scene personnel observed oil streaks on the left side of the airplane’s wing and fuselage that appeared to emanate from the engine cowl. Postaccident examination of the engine revealed that the No. 1 connecting rod bearing had seized and that internal engine damage was consistent with oil starvation. Additionally, examination revealed that a single propeller governor gasket was installed on the engine, whereas the proper gasket configuration was a governor pad plate sandwiched between two gaskets. Maintenance records showed that 10 hours before the accident, maintenance that required the removal and reinstallation of the propeller governor had been performed on the engine. The Mooney service manual does not specify that a 3-piece gasket stack be used when installing the propeller governor; however, the Mooney Illustrated Parts Manual shows a 3-piece gasket stack in place at the propeller governor. Additionally, a Lycoming Service Instruction and a Federal Aviation Administration Special Airworthiness Information Bulletin, both of which were issued in 2005, state that a propeller governor pad plate is necessary in this installation to eliminate the possibility of oil leakage between the propeller governor and the accessory housing.

NTSB Probable Cause Narrative

A loss of engine power due to oil starvation as a result of improper maintenance.

Event Information

Type of Event Accident
Event Date 2/17/2012
Event Day of the Week Friday
Time of Event 1155
Event Time Zone Pacific Standard Time
Event City Lewiston
Event State CALIFORNIA
Event Country --
Zipcode of the event site 96052
Event Date Year 2012
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 404028N
Event Location Longitude 1224937W
Event Location Airport Weaverville
Event Location Nearest Airport ID KO54
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 5
Degrees magnetic from airport --
Airport Elevation 2350
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1153 Pacific Standard Time
Direction of event from weather observation facility (degrees) 120
Weather Observation Facility ID KRDD
Elevation of weather observation facility 505
Distance of event from weather observation facility (units?) 20
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 12
Dew Point at event time (in degress fahrenheit) 1
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator --
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.27
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 31415
NTSB Notification Source FAA Western Pacific ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jun 14 2013 1:04PM
User who most recently changed record stam
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N367MR
NTSB Number WPR12LA108
Missing Aircraft Indicator --
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 MOONEY
Aircraft Model M20J
Aircraft Series Identifier --
Aircraft Serial Number 24-1437
Certified Max Gross Weight 2740
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 1
Cabin Crew Seats --
Passenger Seats 3
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 Oct 12 2011 12:00AM
Airframe hours since last inspection 1
Airframe Hours 2064
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name KROUSE DONALD E
Aircraft Owner Street Address --
Aircraft Owner City WEAVERVILLE
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 96093-2460
Operator is an individual? No
Operator Name KROUSE DONALD E
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City WEAVERVILLE
Operator State CA
Operator Country USA
Operator Zip code 96093-2460
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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 No
Departure Airport Code KO54
Departure City Weaverville
Departure State CA
Departure Country USA
Departure Time 1150
Departure Time Zone PST
Destination Same as Local Flt --
Destination Airport Code KO85
Destination City Redding
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jun 14 2013 12:51PM
User who most recently changed record stam
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --