As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTOTHROTTLES WILL NOT ENGAGE IN ANY MODE OF FLIGHT. ACFT GROUNDED. AUTOTHROTTLE FFR SHOWS ASM-2 RATE MONITOR FAULTS ON NUMEROUS FLTS IAW AMM 22-31-91, REMOVED/REPLACED ASM-2. OPS NML REF SAME. SERVO MOTOR TEST GOOD. THIS CLEARS MEL 22-4B, AND 22-99B.