DISTRIBUTION STATEMENT A: - Approved for public release; distribution is  unlimited.  TM 10-1670-287-23&P, 30 July 2003, is updated as follows:  1. File this sheet in front of the manual for reference.  2. This change implements Army Maintenance Transformation and changes the  Maintenance Allocation Chart (MAC) to support Field and Sustainment  Maintenance.  3. New or updated change information is indicated by a vertical bar in the outer  margin of the page.  4. Remove old pages and insert new pages as indicated below:  5. Replace the following work packages with their revised version:  TM 10-1670-287-23&P  TECHNICAL MANUAL  UNIT AND DIRECT SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)  FOR  MC-4 RAM AIR FREE-FALL PERSONNEL PARACHUTE SYSTEM  NSN: 1670-01-306-2100  Work  Package  Number  Work  Package  Number  Work  Package  Number  Work  Package  Number  WP 0001 00  WP 0013 00  WP 0063 00  WP 0004 00  WP 0014 00  WP 0008 00  WP 0061 00  WP 0011 00  WP 0062 00  CHANGE NO. 2 HEADQUARTERS, DEPARTMENT OF THE ARMY WASHINGTON, DC, 31 AUGUST 2005 Remove Pages   Insert Pages  A/(B Blank)  A/(B Blank) 