Service difficulty report · Floorbeam · Boeing 7378H4

Difficulty date
September 24, 2023
Submitted
October 20, 2023
Operation
Air carrier
Aircraft
N8674B
Make and model
Boeing 7378H4
Aircraft serial
36734
Aircraft time
26,522 hours, 12,730 cycles
Part
Floorbeam
Part number
UNKNOWN
Condition
Corroded
Location
Zn 100 Fus Lower
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

AT BS 947; RBL 14 TIE DOWN LUG HAS CORROSION.<[01] REMOVED CORROSION FROM FLOOR BEAM AT STA 947; RBL 26 TO 27 AND FOUND DAMAGE TO BE OUT OF LIMITS PER SRM 53-70-51-1A-1. TIE DOWN LUG IS AT RBL 26;[02] REMOVED DAMAGED SECTION OF UPPER CHORD I.A.W SRM 53-70-51-2R-5 ALTERNATIVE 2.;[03] REMOVED DAMAGED SECTION OF UPPER CHORD I.A.W SRM 53-70-51-2R-5 ALTERNATIVE 2. C/W INSPECTION;[04] FLAP PEENED CUT OUT AREA I.A.W SRM 53-70-51-2R-5.;[05] FLAP PEENED CUT OUT AREA I.A.W SRM 53-70-51-2R-5. C/W INSPECTION;[06] DRILLED REPAIR PARTS PER SRM 53-70-51-2R-5;[07] C/W INSPECTION OF ITEM #6 DRILLED REPAIR PARTS;[08] ALODINE AND PRIMED REPAIR PARTS PER SRM 51-20-01. NEED OK TO INSTALL.;[09] CW INSPECTION OF ITEM 8. OK TO INSTALL.;[10] INSTALLED FASTENERS ON THE SPLICES I.A.W SRM 53-70-51-2R-5;[11] VERIFIED REPAIR MATERIAL 7075 T6 .100;[12] INSTALLED FASTENERS IN T-CHORD PER SRM 53-70-51-2R-5;[13] FABRICATED FILLERS PER SRM 53-70-51-2R-5<BR>MATERIAL 7075 T6 .100;[14] REPAIRED PER SRM 53-70-51-2R-5;[15] INSPECTED WORK PERFORMED

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