Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Chugiak, Alaska 99635
Sunday, April 23, 2006 11:58 AKD
NTSB Narrative Summary Released at Completion of Accident
Two airplanes, a Cessna 172, and a Cessna 170B, collided in mid air during cruise flight in day visual flight rules meteorological conditions. The 172, piloted by a solo commercial pilot, was traveling in a west-southwest direction. The 170B, with an airline transport certificated pilot and three passengers, was flying northbound, at an estimated altitude between 1,500 and 2,000 feet. A pilot-rated ground witness said he saw the two airplanes collide. He stated that as the Cessna 172 approached the Cessna 170B's right side, and as their flight paths converged, he heard the 172's engine power increase, and then saw the airplane pitch-up sharply. He said the two airplanes then collided, with the 170B striking the left side of the 172. Both airplanes became momentarily entwined, and then fell vertically to the ground. An examination of the wreckage disclosed impact signatures consistent with the witness's statement, with the 170B displaying black tire rubber deposits on portions of the white paint that covered the left lift strut. Traces of black, tire material were also discovered on portions of the 170B's propeller assembly. The Cessna 172's left main tire and inner tube were slashed longitudinally, consistent with a propeller strike, through to the aluminum wheel hub assembly. No radar coverage existed for the air space near the accident site, and neither pilot was in communication with any air traffic control facility. Toxicological samples were submitted from both pilots, and both tested negative for alcohol or drugs.
NTSB Probable Cause Narrative
The inadequate visual lookout by the pilots of both airplanes during cruise flight, which resulted in their failure to see-and-avoid each other, and a subsequent midair collision.
Event Information
| Type of Event | Accident |
| Event Date | 4/23/2006 |
| Event Day of the Week | Sunday |
| Time of Event | 1158 |
| Event Time Zone | -- |
| Event City | Chugiak |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99635 |
| Event Date Year | 2006 |
| Event Date Month | 4 |
| MidAir Collision Indicator | Yes |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 613000N |
| Event Location Longitude | 1493309W |
| 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 | 1156 Atlantic Daylight Time |
| Direction of event from weather observation facility (degrees) | 180 |
| Weather Observation Facility ID | BCV |
| Elevation of weather observation facility | 96 |
| Distance of event from weather observation facility (units?) | 7 |
| Time Zone of the weather observation | ADT |
| Lighting Conditions | Day |
| 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) | 5 |
| Dew Point at event time (in degress fahrenheit) | -1 |
| Wind Direction (degrees magnetic) | 20 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 3 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.88 |
| 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 | 5 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 5 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 21074 |
| NTSB Notification Source | ANC FAA, ROC |
| NTSB Notification Date | Apr 23 2006 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Feb 26 2007 11:14AM |
| User who most recently changed record | NTSB\lema |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Anchorage FSDO |
Aircraft Involved |
||
|---|---|---|
Aircraft #1 |
Aircraft #2 |
|
| Aircraft Registration Number | N4488B | N5049A |
| NTSB Number | ANC06FA048A | ANC06FA048B |
| Missing Aircraft Indicator | -- | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation | Part 91: General Aviation |
| Type of Flight Plan filed | VFR | None |
| Flight plan Was Activated? | Yes | -- |
| Damage | Destroyed | Destroyed |
| Aircraft Fire | None | None |
| Aircraft Explosion | None | None |
| Aircraft Manufacturer's Full Name | Cessna | Cessna |
| Aircraft Model | 170B | 172 |
| Aircraft Series Identifier | -- | -- |
| Aircraft Serial Number | 26832 | 28049 |
| Certified Max Gross Weight | 1900 | 1900 |
| 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 | 4 | 4 |
| Number of Engines | 1 | 1 |
| Fixed gear or retractable gear | Fixed | Fixed |
| Aircraft, Type of Last Inspection | Annual | Annual |
| Date of Last Inspection | Jan 1 2006 12:00AM | Apr 1 2006 12:00AM |
| Airframe hours since last inspection | -- | -- |
| Airframe Hours | 6812.6 | 4299 |
| ELT Installed | Yes | Yes |
| ELT Activated | No | No |
| ELT Aided Location of Event Site | No | No |
| ELT Type | -- | -- |
| Aircraft Owner Name | Wes S. Erb | William A. Smoke |
| Aircraft Owner Street Address | -- | -- |
| Aircraft Owner City | Chugiak | Chugiak |
| Aircraft Owner State | AK | AK |
| Aircraft Owner Country | USA | USA |
| Aircraft Owner Zipcode | 99567 | 99567 |
| Operator is an individual? | No | No |
| Operator Name | David M. Beauregard | -- |
| Operator Same as Owner? | No | Yes |
| Operator Is Doing Business As | -- | -- |
| Operator Address Same as Owner? | No | Yes |
| Operator Street Address | -- | -- |
| Operator City | Wasilla | -- |
| Operator State | AK | -- |
| Operator Country | USA | -- |
| Operator Zip code | 99654 | -- |
| 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) | Personal | Personal |
| Second Pilot on Board | No | No |
| Departure Point Same as Event | No | No |
| Departure Airport Code | PABV | PABV |
| Departure City | Chugiak | Chugiak |
| Departure State | AK | AK |
| Departure Country | USA | USA |
| Departure Time | 1153 | -- |
| Departure Time Zone | ADT | ADT |
| Destination Same as Local Flt | -- | dest & departure same, accident can occur anywhere |
| Destination Airport Code | PATK | -- |
| Destination City | Talkeetna | -- |
| Destination State | AK | -- |
| Destination Country | USA | -- |
| Specific Phase of Flight | Cruise | Cruise |
| Report sent to ICAO? | -- | -- |
| Evacuation occurred | -- | -- |
| Date of most recent change to record | Jan 26 2007 2:49PM | Jan 26 2007 2:49PM |
| User who most recently changed record | STAM | STAM |
| Since inspection or accident | Last Inspection | Last Inspection |
| Event Location Runway Number and Location | NA | NA |
| Runway Length | -- | -- |
| Runway Width | -- | -- |
| Sight Seeing flight | No | No |
| Air Medical Flight | No | No |
| Medical Flight | -- | -- |