As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE CONFIGURING TO FLAPS 5 DEGREES DURING APPROACH RECEIVED, FLAPS PRIMARY FAIL, EICAS MSG. FLAPS LOWERED BY ALTERNATE PROCEDURE & LANDED FLAPS 20 WITHOUT INCIDENT. EMERGENCY DECLARED, LANDING UNEVENTFUL. ACCOMPLISHED FIM 27-52-00-810-801. R & R NR 2 FSEU IAW AMM 27-51-01. PERFORMED OPERATIONAL CHECK. SYS CHECKED NORMAL.