What was found
COMPLY WITH: 670BA-53-040 - FUSELAGE - CENTER FUSELAGE, PRIMARY STRUCTURE FS280.00 TO FS295.00 - INSPECTION AND REINFORCEMENT OF LINTEL STRINGER 3 OF THE MAIN PASSENGER DOOR REV C PART(S) B (C-CHECK RO 07/18/2025)SERVICE BULLETIN 670BA-53-040, REVISION C, FUSELAGE - CENTER FUSELAGE, PRIMARY STRUCTURE FS280.00 TO FS295.00 - INSPECTION AND REINFORCEMENT OF THE LINTEL STRINGER 3 OF THE MAIN PASSENGER DOOR, PART B, INCORPORATED AND COMPLIED WITH REO 670-53-21-493 REV -D DATE 2015-07-10 COMPLIED WITH 51-900-1002 SKY WEIGHT ADDED 0.3 LBS