Johnson County Executive Airport
Aircraft Accident/Incident Report

Olathe, Kansas 66061
Wednesday, May 28, 1986 7:27 CDT

NTSB Narrative Summary Released at Completion of Accident

DURING A TAKEOFF ROLL FM JOHNSON COUNTY EXECUTIVE AIRPORT, THE PIC STATED THAT THE LEFT LANDING GEAR COLLAPSED AND THE AIRCRAFT IMPACTED THE RWY AND VEERED OFF INTO SOFT TERRAIN. INSPECTION REVEALED THAT WHEN ELECTRICAL POWER WAS INITIATED AND THE GEAR SWITCH WAS IN THE DOWN POSN, THE GEAR RETRACTED. REPEATED ATTEMPTS AFTER THE FIRST TEST COULD NOT DUPLICATE THIS SITUATION. THE PIC STATED THAT JUST BEFORE ROTATION THE GEAR COLLASPED. IN BOTH INSTANCES THE SQUAT SWITCH WAS NOT ENGAGED. THE PIC STATED THERE WERE ONLY NORMAL GEAR DOWN AND LOCKED INDICATIONS IN THE COCKPIT PRIOR TO MAIN GEAR COLLAPSE.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 5/28/1986
Event Day of the Week Wednesday
Time of Event 727
Event Time Zone Central Daylight Time
Event City OLATHE
Event State KANSAS
Event Country --
Zipcode of the event site 66061
Event Date Year 1986
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport JOHNSON COUNTY EXECUTIVE
Event Location Nearest Airport ID OJC
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 1096
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 727 Central Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID OJC
Elevation of weather observation facility 1169
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 25000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Unknown
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 5
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 70
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 638
NTSB Notification Source --
NTSB Notification Date May 28 1986 12:00AM
NTSB Notification Time 735
Fiche Number and/or location -used to find docket information 31011
Date of most recent change to record Jan 2 2001 9:14AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1581X
NTSB Number MKC86LA119
Missing Aircraft Indicator N
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 PIPER
Aircraft Model PA-34-200T
Aircraft Series Identifier PA-34-200T
Aircraft Serial Number 34-7570299
Certified Max Gross Weight 4570
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 7
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jan 3 1986 12:00AM
Airframe hours since last inspection --
Airframe Hours 950
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name ARMSTRONG AVIATION LTD.
Aircraft Owner Street Address BOX 58 RR2
Aircraft Owner City HUMBOLT
Aircraft Owner State KS
Aircraft Owner Country
Aircraft Owner Zipcode
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 Yes - certificate holder
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) Positioning
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code OJC
Departure City OLATHE
Departure State KS
Departure Country
Departure Time 725
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code H33
Destination City IOLA
Destination State KS
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 35
Runway Length 4099
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --