63-02-01 BOEING: Amdt. 527 Part 507 Federal Register January 11, 1963. Applies to All 707/720 Series Aircraft. \n\n\tCompliance required within the next 500 hours' time in service, unless already accomplished. \n\n\tThe upper and lower fairings installed over the anticollision lights have been found to disturb the light distribution in certain peripheral areas. To prevent a reduction in the effective light intensity: \n\n\t(a)\tRemove the anticollision light upper fairing, (P/N's 69-10789, 9-66041-3000) and the lower fairing, (P/N's 69-10789-1, 9-66041 or 9-66041-3000); and \n\n\t(b)\tPlug the mounting holes for the fairing assembly fasteners with Boeing material specification 5-13 Type A aerodynamic smoother or equivalent. \n\n\t(Boeing Service Bulletin No. 1651 covers the same subject.) \n\n\tThis directive effective February 12, 1963.