As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT BEING CONFIGURED FOR LANDING AND ONCE FLAPS EXTENDED PAST 25 DEGREES ACFT ROLLED TO RIGHT. CREW DID NOT NOTICE ANY UNCOMMANDED AIRCRAFT MOVEMENTS WHEN FLAPS WERE INITIALLY LOWERED, ONLY AFTER THE 25 DEGREE DOWN SETTING. FLIGHT CREW STABILIZED ACFT FOR REMAINDER OF APPROACH PATH AND FLIGHT LANDED WITHOUT INCIDENT. MX COULD NOT FIND ANY DISCREPANCIES BUT RIGGED TRAILING EDGE FLAP SYSTEM. ACFT RETURNED TO SERVICE.