As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON CLIMBOUT FROM KBWI EN ROUTE TO KWRI AFTER GEAR RETRACTION CREW NOTED AIR NOISE FROM UNDER COCKPIT FLOOR. AFTER GEAR RECYCLE, UNDER AIR LOAD NOISE DECREASED. CREW PROCEEDED TO KWRI AND MADE AN UNEVENTFUL LANDING. UPON INSPECTION MX NOTED NLG DOOR SEAL ON RT SIDE MISSING AND INSTALLED A SERVICEABLE SEAL. AIRCRAFT RETURNED TO SERVICE.