As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, AT 5000 FEET, FLAPS ON EICAS WITH CONFIG WARNING HORN BEING INTERMITTENT UNTIL LANDING. FLIGHT DECLARED AN EMER & LANDED WITHOUT FURTHER INCIDENT.. ACFT REMOVED FROM SERVICE. REPLACED RELAY K215 IAW SWPM 20-81-22 & SENSOR S266 AS A PRECAUTION IAW AMM 32-09-08. R & R NR 4 FLAP POSITION TRANSMITTER & ACCOMPLISHED ADJUSTMENT TEST IAW MM 27-51-45.