Service difficulty report · Intercostal · Boeing 7377BD

Difficulty date
February 16, 2023
Submitted
March 15, 2023
Operation
Air carrier
Aircraft
N7745A
Make and model
Boeing 7377BD
Aircraft serial
33933
Aircraft time
49,824 hours, 25,581 cycles
Part
Intercostal
Condition
Cracked
Location
Zn 100 Fus Lower
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 BTW BS 344 TO BS 360 RBL 4 FWD GALLEY AND LAV 2023-119582FLOOR STRUCTURE EXACTLY LOCATION BTW BS 344 TO BS 360 BL 0<[01] REPLACED WEB - INTERCOSTAL FLOOR STRUCTURE LOCATED BTW BS 344 TO BS 360 RBL 4 FWD GALLEY AND LAV IAW B737-700 SRM 51-10-02 DRAWING 141A5400 SHEET 32 REV.- SEE INDIVIDUAL SIGNOFFS BELOW;[02] STEP 1 CORRECTED <BR>REPLACED WEB - INTERCOSTAL FLOOR STRUCTURE LOCATED BTW BS 344 TO BS 360 BL 0FWD GALLEY AND LAV IAW B737-700 SRM 51-10-02 AND SRM 51-40-02 DRAWING 141A5400 SHEET 32 REV.- SEE INDIVIDUAL SIGNOFFS BELOW;[03] REPLACED WEB - INTERCOSTAL FLOOR STRUCTURE LOCATED BTW BS 344 TO BS 360 BL 0FWD GALLEY AND LAV IAW B737-700 SRM 51-10-02 AND SRM 51-40-02 DRAWING 141A5400 SHEET 32 REV.- SEE INDIVIDUAL SIGNOFFS BELOW. RII

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