Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
April 23, 2022
Submitted
May 19, 2022
Operation
Air carrier
Aircraft
N474WN
Make and model
Boeing 7377H4
Aircraft serial
33861
Aircraft time
59,626 hours, 35,442 cycles
Part
Intercostal
Condition
Cracked
Location
Fuselage
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

CRACK WEB - INTERCOSTAL FLOOR STRUCTURE LOCATED BS312 TO BS328 AT RBL31 FWD GALLEY AND LAV 2022-211499. REPLACED WEB - INTERCOSTAL FLOOR STRUCTURE LOCATED BS312 TO BS328 AT RBL31 FWD GALLEY AND LAV IAW B737-700 SRM 51-10-02 AND DRAWING 141A5400 REV: - SEE INDIVIDUAL SIGNOFF BELOW; STEP 1 CORRECTED <BR>REPLACED WEB - INTERCOSTAL FLOOR STRUCTURE LOCATED BS312 TO BS328 AT RBL31 FWD GALLEY AND LAV IAW B737-700 SRM 51-10-02 AND DRAWING 141A5400 REV: - PART USED: 141A5410U140; PO 2022-142991; SEE INDIVIDUAL SIGNOFF BELOW; REPLACED WEB - INTERCOSTAL FLOOR STRUCTURE LOCATED BS312 TO BS328 AT RBL31 FWD GALLEY AND LAV IAW B737-700 SRM 51-10-02 AND DRAWING 141A5400 REV: - PART USED: 141A5410U140; PO 2022-142991

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