Document: NUREG-0800
Document ID: 83a8f386-800e-4c29-992a-98030c7ea7d6
Document Type: srp
Title: AIRCRAFT HAZARDS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1003/ML100331298.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.5.1.6
CFR Part: 
CFR Title: 

Content:
rway (plus twice the distance from the airway edge to the site when the site is outside the airway) in miles N = number of flights per year along the airway A = effective area of plant in square miles 3.5.1.6-7 Revision 4 - March 2010 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 C = 4x10-10(1) per aircraft mile has been used. This value of C is comparable to the value cited in University of California, Lawrence Radiation Laboratory (UCRL)(2) Table 2.7 and consistent with the information presented in U.S. Department of Energy (DOE) Document(3). This information is documented in the staff letter to Advisory Committee on Reactor Safeguards(4). 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. (1) H. E. P. Krug, “Testimony on Aircraft Operations in Response to a Question from the Board” (Docket Nos. 50-275 and 50-323) (2) UCRL, “Data Development Technical Support Document of the Aircraft Crash Risk Analysis Methodology (ACRAM) Standard,” Chris Y. Kimura, et al., UCRL-ID-124837, August 1, 1996 (3) DOE, “Accident Analysis of Aircraft into Hazardous Facilities,” DOE-STD-3014-96, October 1996 (4) Agencywide Documents Access and Management System Accession Numbers (ML092660563 and ML092580315) 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 ( PA ) may be calculated by using the following expression: P C N A A j ij j j M i L = = = ∑ ∑ 1 1 where: M = number of different types of aircraft using the airport L = number of flight trajectories affecting the site