As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L4 DOOR DIFFICULT TO CLOSE FROM INSIDE. DOOR SEAL WILL NOT STAY IN TRACK. RE-INSTALLED SEAL IN RETAINER TRACK IAW AMM 52-09-01. VERIFIED INTEGRITY OF SEAL WITH OPERATIONAL CHECK. NO ADDITIONAL FAULTS NOTED. SEAL REMAINED IN TRACK. ACFT RELEASED TO SERVICE.