Document: NUREG-0800
Document ID: cf13ac26-7c1d-4376-8b38-ba6222db2acd
Document Type: srp
Title: AIRCRAFT HAZARDS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070510639.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.5.1.6
CFR Part: 
CFR Title: 

Content:
for aircraft using airway C = width of airway (plus twice the distance from the airway edge to the w = site when the site is outside the airway) in miles number of flights per year along the airway N = effective area of plant in square miles A = 3.5.1.6-7 Revision 3 - March 2007 This gives a conservative upper bound on aircraft impact probability if care is taken in using values for the individual factors that are meaningful and conservative. For commercial aircraft a value of 4x10-10 (Ref. 11) per aircraft mile has been used. C = For heavily traveled corridors (greater than 100 flights per day), a more detailed analysis may be required to obtain a proper value for this factor. 3. Civilian and Military Airports and Heli-Ports. The probability of an aircraft crashing into the site should be estimated for cases in which one or more of the conditions in item II.1 of the acceptance criteria are not met. The probability per year of an aircraft crashing into the site for these cases ( ) may be calculated by using the following expression: PA P C N A A j ij j j M i L = = = ∑ ∑ 1 1 where: = number of different types of aircraft using the airport M = number of flight trajectories affecting the site L = probability per square mile of a crash per aircraft movement, for the jth Cj aircraft = number (per year) of movements by the jth aircraft along the ith flight Nij path = effective plant area (in square miles) for the jth aircraft Aj The manner of interpreting the individual factors in the above equation may vary on a case-by-case basis because of the specific conditions of each case or because of changes in aircraft accident statistics. Values for currently being used are taken from the data summarized in the following Cj table: 3.5.1.6-8 Revision 3 - March 2007 Distance From End of Runway (miles) Probability (x108) of a Fatal Crash per Square Mile per Aircraft Movement U.S. Air Carrier1 General Aviation2 USN/USMC1 USAF1 0–1 16.7 84 8.3 5.7 1–2 4.0 15 1.1 2.3 2–3