As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT DISCOVERED THAT THE CATWALK IN TAIL SECTION, WOULD NOT RETRACT BECAUSE A RETRACT PANEL WAS BINDING ON THE CEILING PANEL. THE SYS WAS FORWARDED AND PLACARD PROCEDURES WERE COMPLIED WITH. ON 17JUL, IT WAS FOUND THAT THE LT SIDE RUB STRIP WAS MISSING, BUT WAS REPLACED ON 18JUL. THE SYS WAS OPERATIONALLY CHECKED AND THE ACFT WAS RETURNED TO SERVICE.