Service difficulty report · Intercostal · Boeing 7377BD

Difficulty date
September 16, 2023
Submitted
October 20, 2023
Operation
Air carrier
Aircraft
N7720F
Make and model
Boeing 7377BD
Aircraft serial
33922
Aircraft time
57,303 hours, 30,551 cycles
Part
Intercostal
Part number
UNKNOWN
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 BETWEEN BS 277 TO BS 294.5 AND BL 0 FWD GALLEY AND LAV 2023-584561<[01] REPLACED WEB INTERCOSTAL AND FASTENERS LOCATED ON FLOOR STRUCTURE BETWEEN BS 277 TO BS 294.5 AND BL 0 FWD GALLEY AND LAV IAW B737-700 SRM 51-10-02 ITEM 9 AND DWG: 141A5400 SHEET: 20 REV.: ?<BR>SEE INDIVIDUAL SIGN-OFF BELOW;[02] TASK CARD COMPLETED <BR>REPLACED WEB INTERCOSTAL AND FASTENERS LOCATED ON FLOOR STRUCTURE BETWEEN BS 277 TO BS 294.5 AND BL 0 FWD GALLEY AND LAV IAW B737-700 SRM 51-10-02 ITEM 9 AND DWG: 141A5400 SHEET: 20 REV.: ? <BR>SEE INDIVIDUAL SIGN-OFF BELOW<BR>RII

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