What was found
FWD CARGO DOOR CUTOUT AFT SEAL REST HAS CORROSION AT SCUFF PLATE NUT PLATES. REMOVED AND REPLACED SEAL REST REF. SRM 51-40-08. RESTORED SURFACE PROTECTION REF. SRM 51-23-04, 51-23-05, AND 51-23-06. SEE W/O H6609 SN 663 FOR WORK DETAILS. AIRCRAFT REMAINS IN HEAVY CHECK BNA.