What was found
FA REPORTS L1 DOOR DIFFICULT TO CLOSE, REQUIRING MORE FORCE THAN NORMAL. ALSO REPORTED A TAPPING NOISE EMANATING FROM UPPER RIGHT SECTION OF L1 DURING DESCENT, LANDING. DURING TAXI-IN. GROUNDED - YES. INSPECTED FWD L1 DOOR FRAME/SILL AND DOOR ASSY IAW AMM 52-11-00, NO DEFECTS WERE NOTED. OPS CHECKED AND VERIFIED DOOR FORCE BOTH OPENING AND CLOSING PER AMM 52-11-00, OPS CHECK GOOD WITH NO HISTORY PAST 90 DAYS, DEFECT DID NOT AFFECT PRESSURIZATION OR COMMUNICATION. NO DEFECTS NOTED OPS CHECK GOOD.