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The area may expand or shrink based on activities on the surface Restricted Area: Denote the existence of unusual, often invisible, hazards to aircraft such as artillery firing, aerial gunnery, or guided missiles: Require clearance from the controlling agency: R-4808N surrounding Area 51: Name starts with "R-" and delineated with : Warning Area
Within the ADIZ is an even more sensitive zone designated the Washington, D.C. Metropolitan Area Flight Restricted Zone (DC FRZ). The DC FRZ extends approximately 13–15 nmi (15–17 mi; 24–28 km) around the DCA VOR/DME. Flight within the FRZ is restricted to governmental, certain scheduled commercial and a limited set of waivered flights.
A February 2023 incident in Austin, Texas, where a FedEx Boeing 767 and a Southwest Airlines flight came within about 115 feet (35 m) of each other after both were cleared for the same runway [34] [38] prompted the FAA to draft new air traffic control policy intended to improve collision-warning systems, hire more controllers, and reduce ...
Section of the Sectional Aeronautical Chart for Washington 90th edition, showing the restricted area R-5002 around Warren Grove, New Jersey. Restricted airspace is an area of airspace typically used by the military in which the local controlling authorities have determined that air traffic must be restricted or prohibited for safety or security concerns.
A prohibited airspace is an area (volume) of airspace within which flight of aircraft is not allowed, usually due to security concerns. It is one of many types of special use airspace designations and is depicted on aeronautical charts with the letter "P" followed by a serial number.
Zonal Safety Analysis (ZSA) is one of three analytical methods which, taken together, form a Common Cause Analysis (CCA) in aircraft safety engineering under SAE ARP4761. [1] The other two methods are Particular Risks Analysis (PRA) and Common Mode Analysis (CMA). Aircraft system safety requires the independence of failure conditions for ...
Glideslope critical area – aircraft/vehicles/persons or physical obstructions are not authorized in or over the critical area when an arriving aircraft is between the ILS final approach fix and the airport unless the aircraft has reported the airport in sight and is circling or sidestepping to land on a runway other than the ILS runway.
The MOA system was established around mid-1970s after a few military-civilian aircraft midair collisions and near misses. [ 2 ] Whenever an MOA is active, nonparticipating IFR traffic may be cleared through the area provided ATC can ensure IFR separation; otherwise, ATC will reroute or restrict nonparticipating IFR traffic.