78-05-04 MCDONNELL DOUGLAS: Amendment 39-3150. Applies to DC-10-10, -10F, -30, -30F and -40 series airplanes, certificated in all categories. \n\n\tCompliance required within 30 days after the effective date of this AD, unless already accomplished. \n\n\ta.\tTo prevent a total Automatic Landing System disengagement below the alert height during a Category III approach because of a single failure, accomplish the following: \n\n\tIncorporate the following revision in the applicable Flight Guidance Appendices IV, IVA and etc., of the FAA Approved Airplane Flight Manual documents MDC-J1010, MDC-J1030, MDC-J5830, MDC-J1040 and MDC-J2140: \n\n\tAdd the following as the last entry in Section I Limitations: \n\n\t\t"Category III Automatic Landing \n\n\t\tIn addition to the Automatic Landing System Limitations listed above, the following limitation \t\tapplies: \n\n\t\tDo not use automatic landing system for Category III operation unless DC-10 Service Bulletin \t\t34-84 or production equivalent is incorporated." \n\n\tb.\tEquivalent modifications, procedures, or revisions may be used when approved by the Chief, Aircraft Engineering Division, FAA Western Region. \n\n\tThis amendment becomes effective April 8, 1978.