As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF ASA TSR712591 TECH SERVICES REQUEST FOLLOW UP DUE TO HISTORY OF AFCS A/T DC-1 CIRCUIT BREAKER POPPING DURING ENGAGEMENT OF AUTO THROTTLE. FCC-A REPLACEMENT REQUIRED. GROUNDED - YES. REPLACED FCC-A REF B737-9 AMM 22-11-33. LRU REPLACEMENT TEST BITE GROUP #35 GOOD. LAND VERIFY TEST GOOD. LOADED SOFTWARE 2274-COL-AC2-26 TO FCC-A REF AMM 22-11-33-470-802 VERIFIED FCC-A AND FCC-B OPS MATCH.