Airbus

Docket No. FAA-2012-0291; Directorate Identifier 2011-NM-168-AD Comment 1: SB 57-1153 Rev 02 has been issued on April 06, 2012 without additional work required for aircraft modified by any previous issue. Thank you refer to the latest issued revision SB 57-1153 Rev 02 for the required action in the AD paragraphs (g) and (h) and give the credit for previous actions in paragraph (i) of the AD for the SB 57-1153 original issue dated February 09, 2010 or Revision 01 dated June 28, 2010. Comment 2: NPRM mentions in the “Cost of Compliance” paragraph: “Based on the service information, we estimate that this proposed AD would affect about 170 products of U.S. registry.” However, the number 170 represents the full effectivity of the SB 57-1153. As per SB effectivity the number of N registered aircraft is 22. Thank you to reconsider that paragraph.