Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Watertown, Wisconsin 53094
Sunday, February 5, 2006 16:54 CST
NTSB Narrative Summary Released at Completion of Accident
Prior to departure, both flight crews decided that they would join-up while in flight to take video and still pictures of each airplane. Both aircraft were Shorts Brothers SD-360-300 turboprop airplanes. While flying in formation, N3735W announced over the radio that they would turn right, toward N372AC, and descend. During the turn, N3735W's left wing impacted the left wing and engine of N372AC. After the collision, N372AC rolled to the left and pitched down significantly before the flight crew regained control of the airplane. After the collision, N372AC was losing hydraulic fluid and eventually had a complete hydraulic system failure. The airplane made an emergency landing at a nearby airport with its flaps retracted and its landing gear partially extended. The airplane overran the end of the runway, coming to rest about 100 feet from the departure threshold. White paint transfer markings and scrapes were observed on the left wing deice boot, the outboard side of the left engine cowling was crushed inboard, the left wing-strut leading edge was torn open and bent, and the lower fuselage skin, immediately forward of the landing gear wheel wells and stub wing, was torn from left to right, consistent with a propeller strike. N3735W impacted terrain and the airplane was destroyed during a subsequent ground fire. The flight crew and passenger were killed. The outboard three-quarters of the left wing was separated from the main wreckage and was not fire damaged. The upper wing surface had linear scrapes diagonally across the wing skin. The left aileron from N3735W was found on the runway where N372AC had landed.
NTSB Probable Cause Narrative
The flight crew failed to maintain clearance from another aircraft as they turned to break formation flight while maneuvering. Contributing to the accident was the decision of both flight crews to fly in formation.
Event Information
| Type of Event | Accident |
| Event Date | 2/5/2006 |
| Event Day of the Week | Sunday |
| Time of Event | 1654 |
| Event Time Zone | Central Standard Time |
| Event City | Watertown |
| Event State | WISCONSIN |
| Event Country | -- |
| Zipcode of the event site | 53094 |
| Event Date Year | 2006 |
| Event Date Month | 2 |
| MidAir Collision Indicator | Yes |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 431049N |
| Event Location Longitude | 0884959W |
| 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 | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1657 Central Standard Time |
| Direction of event from weather observation facility (degrees) | 90 |
| Weather Observation Facility ID | RYV |
| Elevation of weather observation facility | 833 |
| Distance of event from weather observation facility (units?) | 5 |
| Time Zone of the weather observation | CST |
| Lighting Conditions | Dusk |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | -2 |
| Dew Point at event time (in degress fahrenheit) | -8 |
| Wind Direction (degrees magnetic) | 310 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 7 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.84 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Fatal |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | 3 |
| Injury Total Minor | 1 |
| Injury Total None | 2 |
| Injury Total Serious | -- |
| Injury Total All | 4 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 23122 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | Feb 5 2006 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Mar 31 2008 11:52AM |
| User who most recently changed record | NTSB\johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Federal Aviation Administration - Milwaukee FSDO |
Aircraft Involved |
||
|---|---|---|
Aircraft #1 |
Aircraft #2 |
|
| Aircraft Registration Number | N3735W | N372AC |
| NTSB Number | CHI06FA077A | CHI06FA077B |
| Missing Aircraft Indicator | -- | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation | Part 91: General Aviation |
| Type of Flight Plan filed | None | None |
| Flight plan Was Activated? | No | No |
| Damage | Destroyed | Substantial |
| Aircraft Fire | Ground | -- |
| Aircraft Explosion | Ground | -- |
| Aircraft Manufacturer's Full Name | Short Brothers | Short Brothers |
| Aircraft Model | SD-360-300 | SD-360-300 |
| Aircraft Series Identifier | -- | -- |
| Aircraft Serial Number | SH-3735 | SH-3720 |
| Certified Max Gross Weight | 27100 | 27100 |
| Aircraft Category | Airplane | Airplane |
| Aircraft Registration Class | -- | -- |
| 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 | 2 |
| Fixed gear or retractable gear | Retractable | Retractable |
| Aircraft, Type of Last Inspection | AAIP | AAIP |
| Date of Last Inspection | Jan 1 2006 12:00AM | Jan 1 2006 12:00AM |
| Airframe hours since last inspection | -- | -- |
| Airframe Hours | 10077 | 21996 |
| ELT Installed | Yes | Yes |
| ELT Activated | No | No |
| ELT Aided Location of Event Site | No | No |
| ELT Type | -- | -- |
| Aircraft Owner Name | Air Cargo Carriers, Inc. | Air Cargo Carriers, Inc. |
| Aircraft Owner Street Address | 4951 South Howell Avenue | 4951 South Howell Avenue |
| Aircraft Owner City | Milwaukee | Milwaukee |
| Aircraft Owner State | WI | WI |
| Aircraft Owner Country | USA | USA |
| Aircraft Owner Zipcode | 53207 | 53207 |
| Operator is an individual? | No | No |
| 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 | -- | -- |
| Owner has at least one certificate | None | None |
| Other Operator of large aircraft? | -- | -- |
| Certified for Part 133 or 137 Operation | -- | -- |
| 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) | Other Work Use | Other Work Use |
| Second Pilot on Board | Yes | Yes |
| Departure Point Same as Event | No | No |
| Departure Airport Code | MKE | MKE |
| Departure City | Milwaukee | Milwaukee |
| Departure State | WI | WI |
| Departure Country | USA | USA |
| Departure Time | 1555 | 1615 |
| Departure Time Zone | CST | CST |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere | dest & departure same, accident can occur anywhere |
| Destination Airport Code | -- | -- |
| Destination City | -- | -- |
| Destination State | -- | -- |
| Destination Country | -- | -- |
| Specific Phase of Flight | Maneuvering | Maneuvering |
| Report sent to ICAO? | -- | -- |
| Evacuation occurred | -- | -- |
| Date of most recent change to record | Feb 14 2008 1:52PM | Feb 14 2008 1:52PM |
| User who most recently changed record | DINC | DINC |
| Since inspection or accident | Time of Accident | Time of Accident |
| Event Location Runway Number and Location | NA | NA |
| Runway Length | -- | -- |
| Runway Width | -- | -- |
| Sight Seeing flight | No | No |
| Air Medical Flight | No | No |
| Medical Flight | -- | -- |