Portland-Hillsboro Airport
Aircraft Accident/Incident Report

Hillsboro, Oregon 97124
Tuesady, June 9, 1998 12:53 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot-in-command reported a power loss on approach to the runway. The aircraft passed through the tops of trees approximately 150 feet beyond, and entered a stall/spin maneuver, impacting a power line and the ground approximately 2,800 feet short of the runway threshold. The flaps and landing gear were in a retracted position. Post-crash examination revealed the crankshaft separated in fatigue which originated from a circumferential gouge mark on the aft face of the #2 cheek at an area located outboard of the forward radius of the #1 rod journal. The circumferential gouge mark on the crankcheek was consistent with the connecting rod shifting forward during engine operation. The rub marks on the cheek walls of the #1 connecting rod were consistent with tight piston pin bushing to piston pin clearance. Additionally, the bushings for all the connecting rods were undersize. Airframe/engine logs revealed a top overhaul of the engine approximately 23 hours prior to the crankshaft failure, during which the piston pins were replaced but the connecting rod bushings were not. No dimensional check of the bushings was made or required at that time. The engine was overhauled 515 hours previous to the top overhaul. The manufacturer's overhaul manual specifies that the new bushings should be reamed to the specified (inside) diameter. Post-crash examination of the engine revealed non-standard connecting rod cotter keys and light fretting between the engine case halves.

NTSB Probable Cause Narrative

Improper installation (bushing), mechanical binding (bushing), mechanical binding (connecting rod), and fatigue within the crankshaft. Contributing factors were inadequate major (engine) overhaul and trees.

Event Information

Type of Event Accident
Event Date 6/9/1998
Event Day of the Week Tuesday
Time of Event 1253
Event Time Zone Pacific Daylight Time
Event City HILLSBORO
Event State OREGON
Event Country --
Zipcode of the event site 97124
Event Date Year 1998
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport PORTLAND-HILLSBORO
Event Location Nearest Airport ID HIO
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport 122
Airport Elevation 204
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1255 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 300
Weather Observation Facility ID HIO
Elevation of weather observation facility 205
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 2100
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
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) 21
Dew Point at event time (in degress fahrenheit) 11
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
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 Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1483
NTSB Notification Source --
NTSB Notification Date Jun 9 1998 12:00AM
NTSB Notification Time 1307
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:33AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N199JM
NTSB Number SEA98FA092
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model T210N
Aircraft Series Identifier T210N
Aircraft Serial Number 21064010
Certified Max Gross Weight 4000
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 13 1998 12:00AM
Airframe hours since last inspection 23
Airframe Hours 3418
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name BURTLA, JOSEPH, R.
Aircraft Owner Street Address 9312 NE 140TH STREET
Aircraft Owner City BOTHELL
Aircraft Owner State WA
Aircraft Owner Country
Aircraft Owner Zipcode 98011
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 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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code
Departure City SUN RIVER
Departure State OR
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt --
Destination Airport Code HIO
Destination City HILLSBORO
Destination State OR
Destination Country
Specific Phase of Flight --
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 30
Runway Length 6600
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --