71-02-06 MCDONNELL DOUGLAS: Amdt. 39-1148. Applies to DC-8/DC-9 series airplanes utilizing Douglas P/N 4750048-501 or -502 emergency evacuation slide girt bar latch assemblies incorporating a cadmium plated pivot pin. \n\n\tCompliance required within the next 500 hours time in service after the effective date of this AD, unless already accomplished. \n\n\tTo prevent failures in the deployment of the emergency evacuation slide, accomplish the following: \n\n\t(a)\tModify DC-8 series airplanes in accordance with Douglas Aircraft Company Service Bulletin No. 25-183, dated July 11, 1969, or later FAA approved revisions, and \n\n\t(b)\tModify DC-9 series airplanes in accordance with Douglas Aircraft Company Service Bulletin No. 25-150, Revision 1, dated October 14, 1969, or later FAA approved revisions, or \n\n\t(c)\tAn equivalent modification approved by the Chief, Aircraft Engineering Division, FAA Western Region. \n\n\tThis amendment becomes effective February 26, 1971.