Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Seymour Twp., Wisconsin 54703
Monday, August 31, 1998 19:46 CDT
NTSB Narrative Summary Released at Completion of Accident
Witnesses reported seeing the twin-engine airplane (Cessna 310) climbing on a north-northeast heading. The airplane was operating on an IFR flight plan. The pilot of that airplane contacted air traffic control as it climbed through 2,500 feet above mean sea level. The controller said he had acknowledged the pilot's transmission and then heard an ELT signal. A witness reported seeing a single engine airplane (Cessna 185) flying in a westerly direction. He said the airplanes collided and were '...engulfed in flames...' as they descended toward the ground. Both airplanes impacted the ground at a 90 degree angle about 3/8 mile apart. Examination of the wreckage revealed that the Cessna 185 left wing tip section had collided with Cessna 310 left wing tip fuel tank. The Cessna 185 left wing tip section crushing matched the shape of the wing tip fuel tank.
NTSB Probable Cause Narrative
the pilots of both airplanes not maintaining visual separation from the other airplane.
Event Information
| Type of Event | Accident |
| Event Date | 8/31/1998 |
| Event Day of the Week | Monday |
| Time of Event | 1946 |
| Event Time Zone | Central Daylight Time |
| Event City | SEYMOUR TWP. |
| Event State | WISCONSIN |
| Event Country | -- |
| Zipcode of the event site | 54703 |
| Event Date Year | 1998 |
| Event Date Month | 8 |
| MidAir Collision Indicator | Yes |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | |
| Event Location Nearest Airport ID | |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1951 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 290 |
| Weather Observation Facility ID | EAU |
| Elevation of weather observation facility | 907 |
| Distance of event from weather observation facility (units?) | 3 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 25000 |
| Lowest Non-Ceiling Height | 6000 |
| 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) | 20 |
| Air Temperature at event time (in degrees celsius) | 21 |
| Dew Point at event time (in degress fahrenheit) | 16 |
| Wind Direction (degrees magnetic) | 250 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| 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 | 2 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1702 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Aug 31 1998 12:00AM |
| NTSB Notification Time | 2130 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 11 2000 11:41AM |
| 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 | N5056J | N100TS |
| NTSB Number | CHI98FA356A | CHI98FA356B |
| Missing Aircraft Indicator | N | N |
| Federal Aviation Reg. Part | Part 135: Air Taxi & Commuter | Part 91: General Aviation |
| Type of Flight Plan filed | IFR | None |
| Flight plan Was Activated? | -- | -- |
| Damage | Destroyed | Destroyed |
| Aircraft Fire | Ground | None |
| Aircraft Explosion | Unknown | None |
| Aircraft Manufacturer's Full Name | Cessna | Cessna |
| Aircraft Model | 310R | 185B |
| Aircraft Series Identifier | 310R | 185B |
| Aircraft Serial Number | 310R-0176 | 1850639 |
| Certified Max Gross Weight | 5500 | 3200 |
| 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 | 6 | 6 |
| Number of Engines | 2 | 1 |
| Fixed gear or retractable gear | Retractable | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour | Annual |
| Date of Last Inspection | Aug 19 1998 12:00AM | Aug 8 1997 12:00AM |
| Airframe hours since last inspection | 35 | 41 |
| Airframe Hours | 8094 | 5236 |
| ELT Installed | Yes | Yes |
| ELT Activated | Unknown | No |
| ELT Aided Location of Event Site | Unknown | Unknown |
| ELT Type | -- | -- |
| Aircraft Owner Name | HEARTLAND AVIATION, INC. | D.R. HENNING/C.W. SIREK |
| Aircraft Owner Street Address | 3800 STARR AVE. | 505 N. TOWNE HALL RD. |
| Aircraft Owner City | EAU CLAIRE | EAU CLAIRE |
| Aircraft Owner State | WI | WI |
| Aircraft Owner Country | ||
| Aircraft Owner Zipcode | 54703 | 54703 |
| Operator is an individual? | -- | -- |
| Operator Name | ||
| Operator Same as Owner? | Yes | Yes |
| Operator Is Doing Business As | -- | -- |
| Operator Address Same as Owner? | Yes | Yes |
| Operator Street Address | ||
| Operator City | ||
| Operator State | ||
| Operator Country | ||
| Operator Zip code | ||
| Operator Code | AZNA | |
| Owner has at least one certificate | Yes - certificate holder | None |
| Other Operator of large aircraft? | Yes | No |
| Certified for Part 133 or 137 Operation | Unknown | Unknown |
| Operator Certificate Number | -- | -- |
| Indicates whether an air carrier operation was scheduled or not | Non-scheduled | -- |
| Indicates Domestic or International Flight | Domestic | -- |
| Operator carrying Pax/Cargo/Mail | Cargo | -- |
| Type of Flying (Per_Bus / Primary) | Unknown | Personal |
| Second Pilot on Board | No | No |
| Departure Point Same as Event | No | No |
| Departure Airport Code | EAU | RLA |
| Departure City | EAU CLAIRE | WISSOTA |
| Departure State | WI | WI |
| Departure Country | ||
| Departure Time | 0 | 1935 |
| Departure Time Zone | CDT | |
| 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 | Climb | Cruise |
| Report sent to ICAO? | -- | -- |
| Evacuation occurred | -- | -- |
| Date of most recent change to record | Jan 2 2001 10:34AM | Jan 2 2001 10:34AM |
| User who most recently changed record | dbo | dbo |
| Since inspection or accident | -- | -- |
| Event Location Runway Number and Location | 0 | 0 |
| Runway Length | -- | -- |
| Runway Width | -- | -- |
| Sight Seeing flight | No | No |
| Air Medical Flight | No | No |
| Medical Flight | -- | -- |