Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
December 18, 2023
Submitted
February 6, 2024
Operation
Air carrier
Aircraft
N453WN
Make and model
Boeing 7377H4
Aircraft serial
29847
Aircraft time
64,260 hours, 38,169 cycles
Part
Floorbeam
Part number
UNKNOWN
Condition
Delaminated
Location
Bs 540 Lbl25-46
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

MAIN CABIN CENTER WING BOX FLOOR SUPPORT BREAK TOP LAYER DELAMINATED AT STA 540 BETWEEN LBL 24.75 AND LBL 45.5<[01] REMOVED AND REPLACED MAIN CABIN CENTER WING BOX FLOOR SUPPORT PANEL AS PER SRM 51-40-02-0G-0 AND DWW # 143A0060;[02] VERIFIED STEP 1.

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