Driggs-Reed Memorial Airport
Aircraft Accident/Incident Report

Driggs, Idaho 83422
Saturday, September 20, 2003 17:30 MDT

NTSB Narrative Summary Released at Completion of Accident

After landing and proceeding on the centerline, the pilot began to make a right turn following the taxi marker onto a taxiway. When the aircraft was off the runway, a brief and unusual nose wobble was detected. The nose of the aircraft then dropped to the runway and the propellers struck the pavement, causing the aircraft to come to an immediate stop. After separating from the aircraft, the nose wheel was observed approximately 3 to 5 feet from where it came to rest. It was observed that the wheel was smoking from the heat at the center bearing axle shaft, and there was a considerable amount of debris scattered near the front and rear of the aircraft. There was also debris from the nose wheel bearing housing found as far as 500 feet behind the aircraft. The nose landing gear structural attach points were substantially damaged. An FAA inspector reported the nose wheel bearing had failed and separated from the nose fork. The inspector also reported that the bearing and roller retainer on one side of the axle had disintegrated and was missing, while the bearing on the opposite side was void of any lubrication.

NTSB Probable Cause Narrative

The collapse of the nose landing gear while taxiing due to the failure of the nose wheel bearing. A factor was the lack of lubrication.

Event Information

Type of Event Accident
Event Date 9/20/2003
Event Day of the Week Saturday
Time of Event 1730
Event Time Zone Mountain Daylight Time
Event City Driggs
Event State IDAHO
Event Country --
Zipcode of the event site 83422
Event Date Year 2003
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 434419N
Event Location Longitude 1110617W
Event Location Airport Driggs-Reed Memorial Airport
Event Location Nearest Airport ID U59
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 6228
Weather Briefing Completeness Partial - limited by pilot
Investigator's weather source Weather Observation Facility
Time of the weather observation 1735 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 80
Weather Observation Facility ID JAC
Elevation of weather observation facility 6228
Distance of event from weather observation facility (units?) 18
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) 15
Dew Point at event time (in degress fahrenheit) -8
Wind Direction (degrees magnetic) 330
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) 30.17
Density Altitude (feet) 7424
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 15035
NTSB Notification Source Regional Operations Center
NTSB Notification Date Sep 21 2003 12:00AM
NTSB Notification Time 930
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Mar 2 2004 8:06AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Salt Lake City

Aircraft Involved

Aircraft #1

Aircraft Registration Number N41053
NTSB Number SEA03LA192
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 421B
Aircraft Series Identifier --
Aircraft Serial Number 421B0419
Certified Max Gross Weight 7500
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 8
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Sep 1 2002 12:00AM
Airframe hours since last inspection 65
Airframe Hours 2500
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Air Big Rock Inc.
Aircraft Owner Street Address 515 Princeton Road
Aircraft Owner City Hinsdale
Aircraft Owner State IL
Aircraft Owner Country USA
Aircraft Owner Zipcode 60521
Operator is an individual? Yes
Operator Name Jim R. Palmer
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Hinsdale
Operator State IL
Operator Country USA
Operator Zip code 60521
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 CPR
Departure City Casper
Departure State WY
Departure Country USA
Departure Time 1610
Departure Time Zone MDT
Destination Same as Local Flt crash at destination city
Destination Airport Code U59
Destination City Driggs
Destination State ID
Destination Country USA
Specific Phase of Flight Landing - roll
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Nov 26 2003 1:35PM
User who most recently changed record STAM
Since inspection or accident Last Inspection
Event Location Runway Number and Location 21
Runway Length 7300
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --