What was found
AIR TURNBACK DUE TO FAULT, FLT/CTL ALTN LAW L&R AIL FAULT. REPLACED CAPTAIN'S SSTU 4CE1 PER AMM 27-92-41, PB 401. PERFORMED OPERATIONAL TEST PER AMM 27-92-41-710-001. REPLACED ELEV SERVO 34CE3 PER AMM 27-34-56-400-001. PERFORMED OPERATIONAL TEST, OPS CHECK GOOD. REPLACED NR 1 & NR 2 FCDC, PERFORMED OPS CHECK. PERFORMED FLIGHT CONTROL CHECKS PER GMM 50-13 FUNCTIONAL CARDS C271001-1 THRU C271001-6. PERFORMED AFS TEST PER AMM 22-96-00-710-001. NR 2 ELAC NOT REPLACED. PERFORMED LAND CAT III TEST, TEST OKAY. ACFT RETAINS CAT III STATUS. PERFORMED OPERATIONAL TEST FLIGHT. TEST FLIGHT SATISFACTORY. PERFORMED POST FLIGHT WALKAROUND AND FOUND AIRCRAFT SATISFACTORY. AIRCRAFT RELEASED FOR SERVICE.