SDR SWAA2025061071609

Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date: May 15, 2025
Submitted: June 10, 2025
Operation: Air carrier
Aircraft: N900WN
Make and model: Boeing 7377H4
Aircraft serial: 32544
Aircraft time: 57,299 hours, 34,643 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
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

AAI MAIN CABIN FLOOR STRUCTURE SUPPORT HAS CRACK AT STA540 BL0 TO LBL24.75. 2025-309488<[01] REPLACED SUPPORT ASSY AND FASTENERS LOCATED ON MAIN CABIN FLOOR STRUCTURE FROM STA 540 BETWEEN BL 0 TO LBL 24.75 IAW B737-700 SRM 51-40-02 AND DWG #143A0060 SHEET 46 REV-.;[02] REPLACED SUPPORT ASSY AND FASTENERS LOCATED ON MAIN CABIN FLOOR STRUCTURE FROM STA 540 BETWEEN BL 0 TO LBL 24.75 IAW B737-700 SRM 51-40-02 AND DWG #143A0060 SHEET 46 REV-.

More about the Boeing 737-7H4