As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FA REPORTS L1 DOOR LOCKING HANDLE HAS AN UNUSUAL RESISTANCE DURING ROTATION. GROUNDED - YES. VERIFIED L1 DOOR DOES REQUIRE UNUSUAL AMOUNT OF FORCE TO OPEN AND CLOSE THE DOOR. REPLACED BENT L1 DOOR GUIDE ARM ASSY PER B737-900 AMM 52-11-21. RIG AND OPS CHECK GOOD. VERIFIED DOOR STOPS ADJUSTMENT WITHIN LIMITS. REF AMM 52-11-00.