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 RBL43 WL208.<[01] STEP 4 UPDATE;[02] STEP 9 UPDATE;[03] EDIT TO STEP 10;[04] CERTIFY EDIT TO STEP 10.;[05] UPDATED STEPS 8;10;[06] STEPS 10;11;[07] PARTIAL UPDATE STEP #11;[08] ADDITIONAL EDIT TO STEP #11;[09] CERTIFY ACTIONS 7;8;[10] JOB SUMMARY: 986 FLOOR BEAM AT RBL43 AND RBL40 WERE OUT OF LIMITS. REPAIRED THE FLOOR BEAM IAW SRM 53-70-51-2R-6 REPAIR 6. ALL FASTENERS HAVE BEEN INSTALLED AND FINAL FINISHES APPLIED.;[11] CHANGED MEASUREMENT TABLE TO MAJOR REPAIR; UPDATED REMAINING THICKNESS; AND ADDED ORIGINAL THICKNESS TO STEP 2.;[12] VERIFIED COMPLETION CORRECTIVE ACTION 10-11 AND MEASUREMENT TABLE.

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