As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTOTHROTTLE SWITCH WILL NOT STAY IN ARMED POSITION AFTER REPEATED ATTEMPTS DURING CLIMB AND CRUISE.AUTOTHROTTLE CB (P18 E1) REMAINED ENGAGED. CURRENT STATUS COMES UP WITH ASM2 FAULTS AND FAULT HISTORY HAS NUMEROUS ASM2 FAULTS IN LAST TWO FLIGHT LEGS. REPLACED NR 2 ASM. INSTALLATION TEST PASSES. REF AMM 22 31 91/401.