Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
October 26, 2025
Submitted
December 4, 2025
Operation
Air carrier
Aircraft
N231WN
Make and model
Boeing 7377H4
Aircraft serial
32499
Aircraft time
65,270 hours, 39,217 cycles
Part
Floorbeam
Condition
Cracked
Location
Zone 200
Stage of operation
IN
How discovered
V
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

CRACKED FLOORBEAM, BS 540, RBL 2. REPLACED THE FLOORBEAM IAW SRM 51-10-02, ITEM 9, AND INSTALLED FASTENERS IAW SRM 51-40-02, AND DRAWING 143A5240, SHEET 14. MEASUREMENT OF CRACK: L 0.450 INCH.

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