Service difficulty report · Floorbeam · Boeing 7378H4

Difficulty date
March 24, 2022
Submitted
April 12, 2022
Operation
Air carrier
Aircraft
N8625A
Make and model
Boeing 7378H4
Aircraft serial
36896
Aircraft time
27,495 hours, 12,445 cycles
Part
Floorbeam
Condition
Corroded
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

UPPER CHORD OF FLOOR BEAM AT STA.947.5 REQUIRES REPLACEMENT FROM LBL 65 TO RBL 65 DUE TO CORROSION / [01] PERFORMED DVI OF STA 947.5 UPPER CHORD FLANGE; LBL65 TO RBL65 AFTER DAMAGE REMOVAL NO DEFECTS NOTED.;[02] LOCATED AND DRILLED REPLACEMENT UPPER T-CAP; REPAIR ANGLES AND STRAPS PER SRM 53-70-51-2R-5;[03] VERIFIED LOCATED AND DRILLED REPLACEMENT UPPER T-CAP; REPAIR ANGLES AND STRAPS PER SRM 53-70-51-2R-5;[04] TREATED; PRIMED PER SRM 51-20-01. AND OKAY TO INSTALL;[05] VERIFIED TREATED; PRIMED PER SRM 51-20-01. AND OKAY TO INSTALL.;[06] INSTALLED STRUCTURAL SHIMS AND STIFFENERS ON FLOOR BEAM 947.5 AT RBL 24 ;38 AND LBL 30 IAN SRM53-70-51-2R-5.;[07] INSTALLED INTERCOSTAL AT RBL 51 STA 947-967 IAN SRM 53-70-51-2R-5;[08] INSTALLED ALL 4 GALLEY FLOOR MOUNTS AT STA 947.5 AND VERIFIED INSTALLATION AND COMPLETION OF ALL REPAIR FASTENERS AND REINSTALL OF REMOVED STRUCTURES PER SRM 53-70-51-2R-5. OK TO RESTORE AREA.;[09] INSTALLED ALL 4 GALLEY FLOOR MOUNTS AT STA 947.5 AND VERIFIED INSTALLATION AND COMPLETION OF ALL REPAIR FASTENERS AND REINSTALL OF REMOVED STRUCTURES PER SRM 53-70-51-2R-5. OK TO RESTORE AREA C/W INSPECTION;[10] T-CAP INSTALLED IAW SRM 53-70-51-2R-5. CPC WAS ACCOMPLISHED ON FAULT CARD TTG8Q008KGF5.;[11] VERIFIED T-CAP INSTALLED IAW SRM 53-70-51-2R-5. CPC WAS ACCOMPLISHED ON FAULT CARD TTG8Q008KGF5.

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