Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
May 24, 2024
Submitted
July 2, 2024
Operation
Air carrier
Aircraft
N260WN
Make and model
Boeing 7377H4
Aircraft serial
32518
Aircraft time
58,479 hours, 34,921 cycles
Part
Floorbeam
Part number
UNKNOWN
Condition
Corroded
Location
Bs 986
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

CORROSION ON FLOOR BEAM AT AFT WET AREA BS986 LBL43 WL208.<[01] UPDATED STEPS;[02] STEP 4 PARTIAL UPDATE.;[03] STEP 9 UPDATE;[04] APPLY CHEMICAL CONVERSION AND PRIMER TO REPAIR PARTS AND STRUCTURE CUTOUT AREA.;[05] STEP 8 COMPLETE.;[06] UPDATED STEPS 8;10;[07] UPDATE STEPS 10;11;[08] JOB SUMMARY: FLOORBEAM 986 AT LBL43 WAS CORRODED AT NUTPLATE AT LBL43 WL208 AND OUT OF LIMITS. IT WAS REPAIRED IAW SRM 53-70-51-2R-6 REPAIR 6 FIG 205; ALTERNATIVE 4 AND FINAL FINISH APPLIED.;[09] FAULT COMPLETE;[10] VERIFIED CORRECTIVE ACTION ITEMS; CARD COMPLETE.

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