What was found
RT OB SILL REST FR 89 MOUNT HOLE CORRODED. REMOVED AND REPLACED RT OB SILL REST AT FR 89 REF SRM 51-23-04, RESTORED SURFACE PROTECTION REF SRM 51-23-04,51-23-05, 51-23-06. SEE W/O H6951 SN 481 FOR WORK DETAILS. AIRCRAFT REMAINS IN HEAVY CHECK BNA.