2007 — Oct 23, University of ND Piper 44 Bird Strike, Minneapolis to Grand Forks, ND– 2
— 2 Bird Strike Committee-USA, “Significant Bird and other Wildlife Strikes.”
— 2 NTSB. NTSB Identification: CHI08FA027. No date.
NTSB: “History of Flight. On October 23, 2007, about 2212 central daylight time, a twin-engine Piper PA-44-180, N327ND, operated by the University of North Dakota, was substantially damaged during an in-flight collision with terrain near Browerville, Minnesota. The dual instructional flight was being conducted under Title 14 Code of Federal Regulations Part 91 on a visual flight rules (VFR) flight plan. The private pilot and flight instructor were fatally injured. Night visual meteorological conditions prevailed at the time of the accident. The cross-country flight departed St. Paul Downtown Airport (STP), St. Paul, Minnesota, at 2115. The intended destination was Grand Forks International Airport (GFK), Grand Forks, North Dakota.
“The pilot and flight instructor planned a three-leg, dual instructional, cross-country night flight as part of the University of North Dakota (UND) commercial/instrument flight program. The initial leg was from GFK to Hutson Field Airport (GAF), Grafton, North Dakota. From GAF, the flight planned to fly to STP before returning to GFK….
“The FAA was notified that the flight was overdue about 0016 on October 24th. An Alert Notice was issued at 0146 when initial attempts to locate the airplane were unsuccessful. The airplane was subsequently located about 1810 that evening after a search by local authorities and the Civil Air Patrol….
“The accident site was located 16.5 miles northwest of the final radar data point [Little Falls, MN]….
“Microscopic examination and DNA testing by forensic ornithologists identified the material on the wing skin section as remains of a Canada goose. The ornithologists further noted that the natural history of this species was consistent with the location, time and date of the accident..
“Additional Information. Analysis of bird strike data from 1990 through 2004 by the United States Department of Agriculture, Wildlife Services, determined that 74 percent of bird strikes occurred within 500 feet of the ground, 19 percent between 500 feet agl and 3,500 feet agl, and 7 percent above 3,500 feet. Of the 26 percent of bird strikes that occurred above 500 feet, about 7 times more strikes occurred at night than during daylight hours. This was due to the fact that about 61 percent of the reported strikes above 500 feet agl occurred at night while only 18 percent of aircraft movements occurred at night. In addition, a proportionally higher incidence of strikes occurred between September and November, and between April and May, as compared to the number of flight operations….
“Canada geese were attributed to 668 strikes with civil aircraft between 1990 and 2002. Of those strikes, 112 resulted in substantial damage to the aircraft. The average mass of a Canada goose is 9.2 lbs for a male and 7.8 lbs for a female, with a maximum mass of 13.8 lbs. This species exhibits strong flocking behavior.
“The University of North Dakota provided additional pilot training regarding bird strike hazards and mitigation. In addition, they recommended to all of their pilots and flight instructors that when possible higher cruise altitudes should be selected, especially on night cross-country flights, in order to minimize the probability of a bird strike.” (NTSB)
Sources
Bird Strike Committee-USA. “Significant Bird and other Wildlife Strikes.” Accessed 1-15-2009 at: http://www.birdstrike.org/commlink/signif.htm
National Transportation Safety Board. NTSB Identification: CHI08FA027. Washington, DC: NTSB, no date. Accessed 8-20-2015 at: http://www.ntsb.gov/about/employment/_layouts/ntsb.aviation/brief2.aspx?ev_id=20071102X01708&ntsbno=CHI08FA027&akey=1