Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
March 24, 2025
Submitted
May 1, 2025
Operation
Air carrier
Aircraft
N221WN
Make and model
Boeing 7377H4
Aircraft serial
34259
Aircraft time
65,130 hours, 38,662 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

CRACK ANGLE LOCATED BS540 LBL1 AT CENTER WING BOX 2025-224186<[01] REPLACED BRAKE PANEL AND FASTENERS LOC FLOOR STRUCTURE BS 540 BETWEEN BL O AND LBL 24.75 AT PASSENGER CABIN IAW B737-700 SRM 51-40-02 AND DWG: 143A0060; SHEET:44;REV:A. SEE INDIVIDUAL SIGN OFF BELOW;[02] CORRECTED STEP 1: REPLACED ANGLE (BRAKE PANEL) AND FASTENERS LOC FLOOR STRUCTURE BS 540 BETWEEN BL O AND LBL 24.75 AT CENTER WING BOX PASSENGER CABIN IAW B737-700 SRM 51-40-02 AND DWG: 143A0060; SHEET:44;REV:A. SEE INDIVIDUAL SIGN OFF BELOW;[03] REPLACED ANGLE (BRAKE PANEL) AND FASTENERS LOC FLOOR STRUCTURE BS 540 BETWEEN BL O AND LBL 24.75 AT CENTER WING BOX PASSENGER CABIN IAW B737-700 SRM 51-40-02 AND DWG: 143A0060; SHEET:44;REV:A. SEE INDIVIDUAL SIGN OFF BELOW

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