What was found
COMPLY WITH: 670BA-53-036 - FUSELAGE - CENTER FUSELAGE, FS669.40 TO FS855.40 - REPLACEMENT OF THE BEAMS AF LBL36 AND RBL36, AND THE FLOOR ASSEMBLY BETWEEN FS693.00 AND FS847.00 WITH BEAMS INSTALLED AT BL0, LBL9, LBL18, LBL27, RBL9, RBL18 AND RBL27 REV D PART(S) 0 (FILED - CLOSED) COMPLIED WITH SB 670BA-53-036 REV-D DATED 09/09/2014, FUSELAGE - CENTER FUSELAGE, FS669.40 TO FS855.40 - REPLACEMENT OF THE BEAMS AF LBL36 AND RBL36, AND THE FLOOR ASSEMBLY BETWEEN FS693.00 AND FS847.00 WITH BEAMS INSTALLED AT BL0, LBL9, LBL18, LBL27, RBL9, RBL18 AND RBL27 REV D / COMPLETED TASK CARD 51-900-1002-SKY AND FORM M-337 FOR MAJOR STRUCTURAL REPAIR. / REFERENCE REO 670-53-41-579 REV-- DATED 2021-12-20, SB DEVIATION FOR OVERSIZE FASTENER INSTALLATION AT LBL36 AT FS 797.00.