As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM, LEFT AND RIGHT ENGINES ARE OUT OF SYNC DURING CLIMB AND DESCENT. RIGHT ENGINE IS 1 PERCENT HIGHER THAN LEFT ENGINE. PER HAL ENGINEERING PERF DATA ALL NORMAL ACCOMP BITE CK, NO DEFECTS NOTED. TELEX SVC TO GENERATE TSI TO MONITOR. REQUEST FOR MORE CREW EVALUATIONS.