As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CRUISE ALTITUDE, NR 2 ENGINE COMPUTER MM ANNUNCIATOR ILLUMINATED. ENGINE POWER CHANGED ON ITS OWN AT THAT MOMENT. CHECKLIST ITEMS COMPLIED WITH AND NR 2 ENG COMPUTER SWITCH SELECTED IN OVERSPEED PROT MODE. NORMAL LANDING MADE. PERFORMED ENGINE DEEC DOWNLOAD. FOUND FAULT CODE 210. R & R RT ENGINE FCU IAW MM 73-20-01. PERFORMED ADJUSTMENTS IAW MM 72-00-00, OPS CHECKS NORMAL, NO LEAKS NOTED.