As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTS, TE FLAP DISAGREE, LT AND EICAS, WHEN SELECTING FLAPS 20 . FLAPS STUCK BETWEEN 15 AND 20 DEG. SELECTING ALT FLAPS HAD NO EFFECT. LANDED FLAPS 20 AT 170KTS. EMERGENCY DECLARED. FOUND TORQUE INDICATOR POPPED ON NR 1 FLAP TRANSMISSION. REMOVED AND REPLACED LT OUTBOUND FLAP O/B TRANSMISSION IAW AMM TASK 27-51-17-424-020. OPS CHECK GOOD.