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A near mid-air collision is defined as an incident involving aircraft operating within 500 feet proximity. These events predominantly occur under day VFR conditions and are most frequent within 5 miles of airports, usually below 3000 feet AGL. Factors contributing to mid-air collisions include increased air traffic, higher closure speeds, and pilot scan inefficiencies. To mitigate these risks, pilots should adopt the "See and Avoid" concept, employ effective scanning techniques, and maintain situational awareness. Access our quiz to test your knowledge on mid-air collision avoidance!
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Near Mid Air Collision • A near mid air collision is defined as an incident associated with the operation of an aircraft in which a possibility of collision occurs as a result of proximity of less than 500 feet to another aircraft, or a report is received from a pilot or a flight crewmember stating that a collision hazard existed between two or more aircraft (AIM 7-83b).
Profile of Mid Air Collisions • Day VFR conditions • Majority occur within 5 miles of an airport • Areas of greatest traffic concentration • Slow angular closure rate • Majority occur below 3000 ft AGL - Traffic pattern - Final Approach
Profile- Continued • Pilots of all experience levels - First solo student - !5,000 hour seasoned pilot • Military specific operations - Formation flight - NVD flight
Causes of Midairs • Increasing traffic • Higher closure speeds • Overloaded ATC facilities and controllers • Pilot failure to employ effective scan techniques
Locations of potential risk • Uncontrolled airport traffic pattern • Controlled airspace during VMC conditions • Areas that skirt Class B, C, or D • Navaids • Passes, valleys
Prevention Measures • See and Avoid concept (FAR 91.113) • Understand eye limitations • Use scanning techniques • Compensate for aircraft design • Maintain situational awareness • Use and listen to radios • Assign scan sectors to crewmembers
QUIZ Click on the link below to access the Midair Collision Avoidance Quiz http://quizstar.4teachers.org/indexs.jsp Log-in and Click “Search” Tab Class Name = Midair Collision Avoidance