What was found
AFTER PUSH AILERON LOCKOUT EICAS MESSAGE. FOUND LEFT SAM HAD LEFT AILERON ACT FAULT. RESET AND DID NOT RETURN. FOLLOWED LM8279 AND REPLACED RIGHT SAM. UPON RETEST LEFT SAM FAULTED LEFT ACTUATOR. INSTALLED NEW SAM IN LEFT SIDE AND ORIGINAL BACK IN RIGHT. RETEST AND LEFT SAM FAULTED LEFT ACTUATOR AGAIN. RPLCD LEFT AIRDATA COMPUTER AND TESTED, THIS TIME THE RIGHT SAM FAULTED THE LEFT ACTUATOR. ACCOMPLISHED FIM. AFTER SEVERAL SWAPS OF LEFT AND RIGHT M524 AND M525 BOTH SIDES TESTED OK PER MM BUT AILERON MSG AND LIGHT WOULD REMAIN AFTER TEST. LT OR RT STAB MOD WOULD ALTERNATELY FAULT THE LT AIL LOCK ACTUATOR. WHEN ACCOMPLISHING LOCKOUT ACT TEST SAM MODULE KEPT FAULTING LT AIL LOCK ACT. REPLACED LT ACT PER MM. RAN TEST AGAIN SEVERAL TIMES AND HAD NO FAU LTS. RESTORED SYSTEM BACK TO NORMAL.