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Immediately require all 14 CFR Part 121, Part 135 and Part 91, subpart K operators to conduct arrival landing distance assessments before every landing based on existing performance data, actual conditions, and incorporating a minimum safety margin of 15 percent.
This is a summary of events to date: June 7, 2006 – FAA published a notice in the Federal Register providing advance notice of policy statement.  Summary: The following advance notice of policy and information would provide clarification and guidance for all operators of turbojet aircraft for establishing operators’ methods of ensuring that sufficient landing distance exists for safely making a full stop landing with an acceptable safety margin, on the runway to be used, in the conditions existing at the time of arrival and with the deceleration means and airplane configuration to be used.
June 12, 2006 – Letter from NATA to Jim Ballough, Director, Flight Standards Service
NATA took exception to FAA’s application of part 121-driven guidance to parts 91,125 and 135 operators and opposed the apparent bypassing of the rulemaking process. August 31, 2006 – FAA published Safety Alert for Operators (SAFO) 06012 Requested operators make a voluntary commitment to the practice until the rulemaking
was completed. October 23, 2006 – Letter from NATA to Marion C. Blakey, administrator NATA registered its ongoing concerns about the policy as recorded in the SAFO and applied
outside part 121.

October 12, 2007 – FAA issued Order 1110.149 creating a Takeoff/Landing Performance Assessment Aviation Rulemaking Committee November 6, 2007 – FAA published Advisory Circular 91-79 Runway Overrun Prevention Four meetings of the Aviation Rule-making Committee (ARC) have taken place with the fifth
scheduled for Denver on September 30 thru October 2, 2008. At this meeting the FAA expects the ARC’s Steering Committee to furnish the first set of draft recommendations from the respective workgroups.

Appendix D: ICAO Runway Incursion
Definition and Severity Classification

As part of its Flight Plan goal for International Leadership, the FAA supported the efforts of ICAO to establish standard definitions for runway incursion and runway incursion severity. The FAA adopted the ICAO definition beginning in FY 2008 (October 1, 2007):
Any occurrence at an aerodrome involving the incorrect presence of an aircraft, vehicle or person on the protected area of a surface designated for the landing and takeoff of aircraft.
Figure D1 shows a comparison between the FAA definition used prior to October 1, 2007, and the current definition for runway incursion severity classifications.
Figure D1. Comparison of Previous and Current FAA Definition for Runway Incursion Severity Classifications

FAA Definition Prior to FY 2008  Current FAA Definition 
Class  Description  Class  Description 
A  Separationdecreasesandparticipantstake  Accident  Refer to ICAO Annex 13 definition of an accident. 
　
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本文鏈接地址：National Runway Safety Plan 2009-2011(32)