Johnson County Executive Airport
Aircraft Accident/Incident Report

Olathe, Kansas 66051
Wednesday, January 6, 1999 15:30 CST

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that he was cleared to 4,000 feet msl at his request. Approximately 40 miles southwest of Johnson County Executive Airport, Olathe, Kansas, the pilot noticed clear ice forming on the windshield and the wing's leading edge. He added that the rime ice build up was three inches thick. The pilot stated that he flew the localizer 36 approach at 120 mph and as he crossed the threshold of runway 36, approximately 20 feet above the runway surface, he started to 'round out and the airplane immediately stalled and hit hard'. The aircraft came to rest on the right side approach end of runway 36 where the right main and nose landing gear were found collapsed. At 1553, the Johnson County Executive Airport automated surface observing system recorded a surface temperature of -2 degrees Celsius and an overcast cloud layer at 2,200 feet msl. Advisory circular 00-6A, Aviation weather states, '...all clouds at subfreezing temperatures have icing potential. However, drop size, drop distribution, and aerodynamic effects of the aircraft influence ice formation.' AC 00-6A also states, '...If your aircraft is not equipped with deicing or anti-icing equipment, avoid areas of icing. Water (clouds or precipitation) must be visible and outside air temperature must be near zero degrees Celsius or colder for structural ice to form.' Post accident examination of the aircraft revealed 3/4-inch thick rime ice on the aircraft's wing and empennage leading edges.

NTSB Probable Cause Narrative

The pilot's continued flight into adverse weather that resulted in structural icing and subsequently an aerodynamic stall on landing flare. A factor was the pilot's inadequate weather evaluation .

Event Information

Type of Event Accident
Event Date 1/6/1999
Event Day of the Week Wednesday
Time of Event 1530
Event Time Zone Central Standard Time
Event City OLATHE
Event State KANSAS
Event Country --
Zipcode of the event site 66051
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 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 --
Degrees magnetic from airport --
Airport Elevation 1096
Weather Briefing Completeness Partial - limited by pilot
Investigator's weather source Weather Observation Facility
Time of the weather observation 1553 Central Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID OJC
Elevation of weather observation facility 1096
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height 2200
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling Overcast
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) -2
Dew Point at event time (in degress fahrenheit) -7
Wind Direction (degrees magnetic) 360
Variable Wind Indicator Unknown
Wind Speed (knots) 16
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 24
Altimeter Setting at event time (in. Hg) 30
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) 525
NTSB Notification Source --
NTSB Notification Date Jan 6 1999 12:00AM
NTSB Notification Time 1807
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 N740T
NTSB Number CHI99LA061
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 Beech
Aircraft Model BE-V35B
Aircraft Series Identifier BE-V35B
Aircraft Serial Number D9850
Certified Max Gross Weight 3398
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 Mar 3 1998 12:00AM
Airframe hours since last inspection 54
Airframe Hours 2721
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name ARRON S WOLKOFF
Aircraft Owner Street Address 5304 W 83RD TERRACE
Aircraft Owner City PRAIRIE VILLAGE
Aircraft Owner State KS
Aircraft Owner Country
Aircraft Owner Zipcode 66207
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 UKL
Departure City BURLINGTON
Departure State KS
Departure Country
Departure Time 1456
Departure Time Zone CST
Destination Same as Local Flt crash at destination city
Destination Airport Code OJC
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
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 36
Runway Length 4099
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --