Wittman Regional Airport
Aircraft Accident/Incident Report

Oshkosh, Wisconsin 54903
Friday, April 14, 1995 14:25 CDT

NTSB Narrative Summary Released at Completion of Accident

AT 1417:23 CDT, THE PILOT OF CESSNA 150, N45457, CONTACTED THE TOWER AND REPORTED THAT HE WAS 12 MILES SOUTHWEST OF THE AIRPORT AND INBOUND (FOR LANDING). THE TOWER CONTROLLER (CTLR) CLEARED THE PILOT TO ENTER A LEFT BASE FOR RUNWAY 36 AND TOLD HIM TO REPORT 3 MILES SOUTHWEST (OF THE AIRPORT). AT 1419:30, BEECH V35B, N1HK, CONTACTED THE TOWER AND REPORTED INBOUND, 18 MILES SOUTH (FOR LANDING). THE CTLR CLEARED THE V35B (TO CONTINUE) FOR A STRAIGHT-IN APPROACH TO RUNWAY 36 (BUT DID NOT CLEAR THE V35B TO LAND). ONE OF THE V35B PILOTS ACKNOWLEDGED THE CALL, THEN THERE WAS NO FURTHER COMMUNICATION WITH THE V35B. AT 1422:54, THE CESSNA PILOT REPORTED THAT HE WAS 3 MILES SOUTHWEST 'STARTING A BASE' AND WAS CLEARED TO LAND. THE TOWER WAS NOT EQUIPPED WITH A D-BRITE SCOPE (RADAR SCREEN REPEATER); BUT LATER, RADAR NTAP DATA AT THE GREEN BAY STATION REVEALED THAT THE TWO AIRPLANES CONVERGED AS THEY WERE ON FINAL APPROACH TO LAND. THE V35B WAS ABOUT 800' ABOVE AND SLIGHTLY BEHIND THE CESSNA AS THE CESSNA BEGAN ITS FINAL APPROACH. THE ACCIDENT OCCURRED AFTER THE AIRPLANES TRAVELED ABOUT 1500' BEYOND THE RUNWAY THRESHOLD. JUST BEFORE IMPACT, THE CESSNA BANKED RAPIDLY TO THE RIGHT, BUT ITS LEFT WING AND THE V35B'S LOWER FUSELAGE COLLIDED. THE TWO AIRPLANES THEN CRASHED. THE CTLR SAID THAT HE DID NOT SEE THE V35B AFTER CLEARING THE CESSNA TO LAND. A SECOND CTLR WAS ON DUTY, BUT WAS ON A RELIEF BREAK WHEN THE ACCIDENT OCCURRED. THE CTLRS SAID THAT THE TOWER CAB WINDOW HAD REFLECTIVE GLARE THAT CONSTITUTED A HINDRANCE. THE WORKING CTLR WAS HANDLING NINE AIRPLANES WHEN THE ACCIDENT OCCURRED.

NTSB Probable Cause Narrative

INADEQUATE VISUAL LOOKOUT BY THE PILOT OF THE BEECH V35B, RESULTING IN HIS FAILURE TO SEE-AND-AVOID THE CESSNA 150, WHICH WAS AHEAD AND BELOW HIM ON FINAL APPROACH; AND FAILURE OF THE TOWER CONTROLLER TO PROVIDE ADEQUATE SERVICE (FLIGHT ADVISORIES AND LANDING SEQUENCE) TO THE PILOTS OF THE CESSNA 150 AND BEECH V35B. FACTORS RELATING TO THE ACCIDENT WERE: INADEQUATE AIR-TO-GROUND COMMUNICATION BY THE BEECH V35B PILOT, BY FAILING TO NOTIFY THE TOWER THAT HE WAS ON FINAL APPROACH, AND BY FAILING TO OBTAIN A CLEARANCE TO LAND; FAILURE OF THE TOWER CONTROLLER TO VISUALLY IDENTIFY THE BEECH V35B; EXCESSIVE WORKLOAD FOR THE TOWER CONTROLLER; AND POSSIBLE GLARE FROM THE WINDOWS OF THE TOWER CAB (OTHER LIGHT CONDITION).

Event Information

Type of Event Accident
Event Date 4/14/1995
Event Day of the Week Friday
Time of Event 1425
Event Time Zone Central Daylight Time
Event City OSHKOSH
Event State WISCONSIN
Event Country --
Zipcode of the event site 54903
Event Date Year 1995
Event Date Month 4
MidAir Collision Indicator Yes
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport WITTMAN REGIONAL
Event Location Nearest Airport ID OSH
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 1
Degrees magnetic from airport 180
Airport Elevation 808
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1430 Central Daylight Time
Direction of event from weather observation facility (degrees) 360
Weather Observation Facility ID OSH
Elevation of weather observation facility 808
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 80
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 4
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 4
Investigating Agency NTSB
NTSB Docket Number (internal use) 1559
NTSB Notification Source --
NTSB Notification Date Apr 14 1995 12:00AM
NTSB Notification Time 1445
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 7 2000 4:12PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft #2

Aircraft Registration Number N45457 N1HK
NTSB Number CHI95FA126A CHI95FA126B
Missing Aircraft Indicator N N
Federal Aviation Reg. Part Part 91: General Aviation Part 91: General Aviation
Type of Flight Plan filed None None
Flight plan Was Activated? -- --
Damage Destroyed Destroyed
Aircraft Fire Ground Ground
Aircraft Explosion None None
Aircraft Manufacturer's Full Name CESSNA BEECH
Aircraft Model 150M V35B
Aircraft Series Identifier 150M V35B
Aircraft Serial Number 15076932 D-9960
Certified Max Gross Weight 1600 3550
Aircraft Category Airplane Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No No
Flight Crew Seats -- --
Cabin Crew Seats -- --
Passenger Seats -- --
Total number of seats on the aircraft 2 4
Number of Engines 1 1
Fixed gear or retractable gear Fixed Retractable
Aircraft, Type of Last Inspection Annual Annual
Date of Last Inspection Apr 1 1994 12:00AM Apr 30 1994 12:00AM
Airframe hours since last inspection -- --
Airframe Hours -- --
ELT Installed Yes Yes
ELT Activated Unknown Unknown
ELT Aided Location of Event Site Unknown Unknown
ELT Type -- --
Aircraft Owner Name VAGABOND FLYING SERVICE CHUDY LEASING, INC.
Aircraft Owner Street Address 177 JERVEY LANE 626 S. 7TH STREET
Aircraft Owner City BARTLETT LAS VEGAS
Aircraft Owner State IL NV
Aircraft Owner Country
Aircraft Owner Zipcode 60103 89101
Operator is an individual? -- --
Operator Name JOHN KURANZ
Operator Same as Owner? Yes No
Operator Is Doing Business As -- --
Operator Address Same as Owner? Yes No
Operator Street Address RT. 2 BOX 96
Operator City BARRINGTON
Operator State IL
Operator Country
Operator Zip code 60010
Operator Code
Owner has at least one certificate None Yes - certificate holder
Other Operator of large aircraft? No No
Certified for Part 133 or 137 Operation Unknown 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 Personal
Second Pilot on Board No Yes
Departure Point Same as Event No No
Departure Airport Code DPA C59
Departure City WEST CHICAGO DELEVAN
Departure State IL WI
Departure Country
Departure Time 0 0
Departure Time Zone
Destination Same as Local Flt crash at destination city crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Approach Approach
Report sent to ICAO? -- --
Evacuation occurred -- --
Date of most recent change to record Jan 2 2001 10:34AM Jan 2 2001 10:30AM
User who most recently changed record dbo dbo
Since inspection or accident -- --
Event Location Runway Number and Location 36 36
Runway Length 8001 8001
Runway Width 150 150
Sight Seeing flight No No
Air Medical Flight No No
Medical Flight -- --