Aircraft Accident/Incident Report

Spanish Fork, Utah 84660
Monday, July 5, 2004 11:15 MDT

NTSB Narrative Summary Released at Completion of Accident

The pilot made a intentional wheels up landing after first experiencing a low voltage light followed by a loss of engine power. The examination of the engine revealed the number 2 bearing and crankshaft had shifted forward with subsequent failure of the alternator drive shaft and other accessories, as well as, damage to other components of the power drive train. Examination of the aircraft revealed the adhesive (Permatex) for the crankcase seam string was also applied on the crankcase halves surfaces, inside the seam face, and on the through bolts. According to the manufacturer, the adhesive should only be applied to hold the string in place. The excess sealant contributed to either the loss of torque or under-torquing of the through-bolts. The engine had 3692 hours tachometer time when it was overhauled in 1993 when the time between overhaul was extended to 1600 hours. In 2000, the engine had accumulated 1108 hours since the overhaul, when six new, "classic cast" cylinder assemblies, along with new pistons, rings, and piston pins, were installed. In order for this work to have been accomplished, the crankcase would have had to been separated. At the time of the accident, the engine had 5435 hours tachometer time at and 1743 hours since the overhaul.

NTSB Probable Cause Narrative

the improper reassembly of the engine following major overhaul (application of Permatex over entire crankcase surfaces). Contributing factors included the number 2 main bearing and crankshaft shifting forward, causing the alternator drive shaft and other accessory gears to fail, which disabled the camshaft.

Event Information

Type of Event Accident
Event Date 7/5/2004
Event Day of the Week Monday
Time of Event 1115
Event Time Zone Mountain Daylight Time
Event City Spanish Fork
Event State UTAH
Event Country --
Zipcode of the event site 84660
Event Date Year 2004
Event Date Month 7
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 Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1115 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 320
Weather Observation Facility ID PVU
Elevation of weather observation facility 4497
Distance of event from weather observation facility (units?) 6
Time Zone of the weather observation MDT
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) 24
Dew Point at event time (in degress fahrenheit) 10
Wind Direction (degrees magnetic) 260
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.13
Density Altitude (feet) 6728
Intensity of Precipitation --
METAR weather report METAR KPVU 051715Z AUTO 26006KT 10SM CLR 24/10 A30
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 4
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 17918
NTSB Notification Source FAA Comm Ctr
NTSB Notification Date Jul 5 2004 12:00AM
NTSB Notification Time 1215
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jul 7 2005 10:33AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Salt Lake City, Utah

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5408A
NTSB Number DEN04LA098
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 Cessna
Aircraft Model T210N
Aircraft Series Identifier --
Aircraft Serial Number 21063419
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 6
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 20 2003 12:00AM
Airframe hours since last inspection 110
Airframe Hours 5435
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name PinesAir, Inc.
Aircraft Owner Street Address P.O. Box 83
Aircraft Owner City Pine Bluffs
Aircraft Owner State WY
Aircraft Owner Country USA
Aircraft Owner Zipcode 82082
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 No
Departure Airport Code PVU
Departure City Provo
Departure State UT
Departure Country USA
Departure Time 1100
Departure Time Zone MDT
Destination Same as Local Flt --
Destination Airport Code IBM
Destination City Kimball
Destination State NE
Destination Country USA
Specific Phase of Flight Emergency landing
Report sent to ICAO? No
Evacuation occurred --
Date of most recent change to record Apr 26 2005 11:41AM
User who most recently changed record MCBM
Since inspection or accident Time of Accident
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --