Port Columbus Int'l Airport
Aircraft Accident/Incident Report

Columbus, Ohio 43201
Friday, January 22, 1999 15:20 EST

NTSB Narrative Summary Released at Completion of Accident

While landing on runway 28L, the airplane's right main landing gear collapsed. The airplane veered off the right side of the runway and impacted a taxiway sign. Examination of the landing gear system did not reveal any malfunctions or internal component failures. Further testing revealed it was possible for the airplane's side brace actuator to unlock mechanically by repeated cyclic compressive loading. When the compressive load was cycled between near zero, up to values ranging from 1/2 the maximum limit value to near the maximum limit value, the side brace actuator could be induced to unlock in a minimum of 50 cycles. Winds reported at the airport about 30 minutes prior to the accident were from 170 degrees at 14 knots, with 19 knot gusts.

NTSB Probable Cause Narrative

The collapse of the airplane's right main landing gear due to inadequate design by its manufacturer.

Event Information

Type of Event Accident
Event Date 1/22/1999
Event Day of the Week Friday
Time of Event 1520
Event Time Zone Eastern Standard Time
Event City COLUMBUS
Event State OHIO
Event Country --
Zipcode of the event site 43201
Event Date Year 1999
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport PORT COLUMBUS INT'L
Event Location Nearest Airport ID CMH
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 815
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1451 Eastern Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID CMH
Elevation of weather observation facility 815
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 10000
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) 12
Wind Direction (degrees magnetic) 170
Variable Wind Indicator Unknown
Wind Speed (knots) 14
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 19
Altimeter Setting at event time (in. Hg) 29
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) 943
NTSB Notification Source --
NTSB Notification Date Jan 22 1999 12:00AM
NTSB Notification Time 1731
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 12 2000 11:17AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N782QS
NTSB Number NYC99LA051
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 650
Aircraft Series Identifier 650
Aircraft Serial Number 7082
Certified Max Gross Weight 22650
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 10
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Jan 22 1999 12:00AM
Airframe hours since last inspection 2
Airframe Hours 2
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name EXECUTIVE JET SALES, INC
Aircraft Owner Street Address TWO LEADERSHIP SQUARE 10 FL
Aircraft Owner City OKLAHOMA CITY
Aircraft Owner State OK
Aircraft Owner Country
Aircraft Owner Zipcode 73102
Operator is an individual? --
Operator Name
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address TWO LEADERSHIP SQUARE FL 10
Operator City OKLAHOMA
Operator State OK
Operator Country
Operator Zip code 73102
Operator Code DXTA
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code LUK
Departure City CINCINNATI
Departure State OH
Departure Country
Departure Time 1500
Departure Time Zone EST
Destination Same as Local Flt crash at destination city
Destination Airport Code CMH
Destination City
Destination State
Destination Country
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 28L
Runway Length 10250
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --