As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DOORS EICAS AND LIGHT ABOVE HANDLE. CREW REPORTED GEAR HANDLE PLACED IN UP POSITION PER QRH PROCEDURE,VIBRATION AND NOISE WENT AWAY AND "DOORS" LIGHT AND EICAS EXTINGUISHED. CREW COULD NOT PINPOINT AREA OF VIBE-NOISE, BUT SUSPECT COMING FROM MAINS. PERFORMED PSEU BITE TEST PER AMM, NO FAULTS NOTED. ACCOMPLISHED MLG EXTENSION AND RETRACTION TEST AS PER AMM, CHECKED GOOD. VERFIFIED MLG DOORS FLUSH AND FAIR.