What was found
NO LAND 3 ON BOTH AUTOLAND STATUS INDICATORS. MAINT TEXT: MCDP LAST LEG FAULT WAS "ILS CP-ILS L" AND "AIL SER VO-FCC L". MCDP TEST 7 INTERMITTANTLY FAILS "AIL SRVO R". SOME MCDP HISTORY FOR THIS FAULT SEVERAL LEGS AGO. DUE TO FAULTS ON BOTH SIDES A-C WAS TAKEN OUT OF SERVICE FOR MORE TS... MCDP TEST FAULT "NO LAND 3 AIL SRVO-FCC L" CODES 111461. REPLACED AP LATERAL CONT ALCS ELEC SERVO VALVE PER MM, OPS CHECKED GOOD. RIGHT AIL 112884 SRVO OK NOW, NO FAULTS. PERFORMED AUTOPILOT CAT-III AUTOLAND TEST PER MM. ILS OPS CHECK PER MM. TEST OKAY. AIRCRAFT OK TO CAT-III STATUS.