subzone is based on the airfield layout and air operations identified in Seymour Johnson AFB ’ s AICUZ Report . The boundaries of each subzone may need to be amended when the AICUZ study is updated .
A Safety MCA is needed to prevent the development of incompatible land uses in areas with the greatest potential for an accident . These safety zones were identified as a result of the Air Force ’ s guidance that defines APZs as areas where an aircraft accident is most likely to occur ( in the unlikely event that one was to occur ). The APZs follow departure , arrival , and pattern flight tracks and are based upon analysis of historical data .
Within the CZ , most types of land use are incompatible with aircraft operations . It is recommended that no development be located within CZs . Compatibility guidelines preclude land uses that concentrate large numbers of people ( such as residences , apartments , hospitals , churches , and schools ) from being constructed within the APZs . While the likelihood of an accident is remote , the Air Force recommends low density land uses within the APZs to ensure the maximum protection of public health and property .
Imaginary Surfaces Military Compatibility Area ( Figure 26 ) The purpose of the Imaginary Surfaces MCA is to regulate the height of all structures and buildings within the area defined by FAA guidance and Air Force AICUZ instructions known as imaginary surfaces . The imaginary surfaces are a 3‐dimensional geographic area comprising approach and departure airspace corridors and safety buffers . Vertical obstruction heights are a major concern for flight operations and training due to the potential for a structure to extend into navigable airspace , which could impede safe flight operations and put both pilots and citizens on the ground at risk of an aircraft accident . Vertical obstructions that can affect flight safety include , but are not limited to , cell towers , power lines , wind turbines , buildings , and trees . The imaginary surfaces are explained in more detail in Chapter 3 , Seymour Johnson AFB Operations in the Background Report .
BASH Military Compatibility Area ( Figure The proposed Bird / Wildlife Aircraft Strike Haza the airport operational area at Seymour Johnso miles . This MCA is meant to include areas near safety concerns if concentrations of birds or bir located there . Bird strikes with aircraft can hav including the potential for loss of life or aircraft cause costly repairs to aircraft and interfere wit five‐mile distance associated with the BASH MC Administration ( FAA ) recommended standard fo around runways .
Dare County Range MAAs The DCR MIA comprises three MAAs :
• Coordination MAA
• Noise MAA
• Vertical Obstruction MAA
Coordination Military Awareness Area ( F The DCR Coordination MAA is designed to addr along with the associated military low‐level fligh North Carolina JLUS Study Area . It is intended to communication , and awareness to keep county property owners informed of the operations th life and the leadership at Seymour Johnson AFB apprised of community actions that may impac DCR Coordination MAA is a composite of severa geographic component to the MAA :
Seymour Johnson AFB and Dare County Range JLUS Report