What was found
PILOT REPORTED SPOILER FAIL INDICATION IN CRUISE FLIGHT. ALL SPOILER PANELS DEPLOYED UPON LANDING. SCU FAULT CODE 44R4RV3V INDICATED. ADJUSTED LT & RT SPOILER FINAL POSITION LVDT`S AS REQUIRED IAW MM 27-60-00-501. REPLACED LT THROTTLE SWITCH S1, SPOILER SYS FUNCTIONAL CHECKS NORMAL, NO FAULTS INDICATED SUSPECT LT THROTTLE S1 SWITCH TO HAVE PREMATURE INTERNAL FAULT. RECOMMEND MFG INVESTIGATE IF FLEET IS EXPERIENCING PREMATURE FAILURES OF THROTTLE SWITCHES AND REDESIGN SWITCH IF REQUIRED. (K)