63-14-01 BOEING: Amdt 580 Part 507 Federal Register June 27, 1963. Applies to All Models 707 and 720 Series Aircraft. \n\n\tCompliance required within the next 2,000 hours' time in service after the effective date of this AD unless already accomplished. \n\n\tThere have been a number of instances of separation of the two-piece fuel tank adapter, Boeing P/N 10-3062-1, during pressure fueling. This has resulted in a potentially hazardous fire condition from spillage of fuel. \n\n\tTo prevent further fuel spillage from this cause, replace the two-piece fuel tank adapter, Boeing P/N 10-3062-1, with the one-piece fuel tank adapter, Boeing P/N 10-3062-2, on the pressure fueling receptacles. \n\n\t(Boeing Service Bulletin No. 715 covers this subject.) \n\n\tThis directive effective July 29, 1963.