What was found
PASSENGER ENTRY-SERVICE DOORS R AFT NOISE FROM AIR LEAK. REPEAT WRITE UP VERY LOUD NOISE F/A UNABLE TO COMMUNICATE, PAX UPSET. STRONG AIR FLOW AROUND. PRESSURIZED AIRCRAFT FOUND THRESHOLD PLATE LEAKING AT LOWER FORWARD CORNER. THRESHOLD PLATE NEEDS TO BE EITHER REPLACED OR RESEALED. ACCOMPLISHED INTERIM REPAIR AT THIS TIME WITH SPEED TAPE. REPRESSURIZED-CHECKS OKAY. ACCOMPLISHED SEALANT REPLACEMENT UNDER SCUFF PLATE. OPS NORMAL.