As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING OP 16 MAINT CHECK, FOUND IN FWD LT CABIN DOOR WHERE SEAL CONTROL SHAFT PASSES THRU INTERNAL STRUCTURE TO CONNECT WITH SEAL ACTUATING LINK, STRUCTURE HAS CORROSION APPROXIMATELY 17 INCHES FROM LE OF DOOR AND 4 INCHES FROM BOTTOM OF DOOR. INSTALLED NEW SHAFT SUPPORT PER SRM 51-01 PG 01.