As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM, LT AND RT ENG IDLE OUT OF SYNC. LT ENG IS LOWER BY 2 PERCENT N1 AND 1 PERCENT N2. AT CRUISE, LT AND RT N1 SAME. N2 LT IS HIGHER BY 2 PERCENT. ACCOMP GROUND TEST FOR IDLE POWER (TEST 3) ON BOTH NR 1 AND NR 2 ENGS GRD IDLE AND APP IDLE N2 READINGS W/IN TOLERANCE AS PER AMM71-01-02 ENG TRIM TABLE.