70-25-02 MCDONNELL DOUGLAS: Amendment 39-1122. DC-8 Airplanes. Applies to airplanes certificated in all categories equipped with Mark II and Mark III anti-skid system installation. \n\n\tCompliance required within the next 50 hours' time in service after effective date of this AD, unless already accomplished. \n\n\tTo prevent misuse of ground spoilers, accomplish the following: \n\n\t(1)\tAdd to Limitations Section of the FAA approved Airplane Flight Manual, the following Ground Spoiler Operation Limitation: DO NOT EXTEND GROUND SPOILERS DURING FLIGHT \n\n\t(2)\tInstall a placard on the pedestal immediately below the word "spoiler" to read: "Deployment in Flight Prohibited, " or an equivalent installation approved by the Chief, Aircraft Engineering Division, FAA Western Region. \n\n\tThis amendment becomes effective December 5, 1970.