Service difficulty report · Intercostal · Boeing 7377BD

Difficulty date
January 6, 2023
Submitted
February 10, 2023
Operation
Air carrier
Aircraft
N7748A
Make and model
Boeing 7377BD
Aircraft serial
36399
Aircraft time
49,386 hours, 25,198 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 312 TO BS 328 RBL 32 AT FWD GALLEY AREA 2022-708707<[01] REPLACED WEB-INTERCOSTAL AND FASTENERS LOCATED ON FLOOR STRUCTURE BTW BS312 AND BS328 RBL32 AT FWD GALLEY AREA IAW B737-700 SRM 51-40-02 AND DWG# 141A5400; SHEET: 39; REV: -<BR>SEE INDIVIDUAL SIGN-OFF BELOW;[02] REPLACED WEB-INTERCOSTAL AND FASTENERS LOCATED ON FLOOR STRUCTURE BTW BS312 AND BS328 RBL32 AT FWD GALLEY AREA IAW B737-700 SRM 51-40-02 AND DWG# 141A5400; SHEET: 39; REV: - <BR>SEE INDIVIDUAL SIGN-OFF BELOW. COMPLETED;[03] CORRECTED STEP 1 <BR><BR>THIS FAULT HAS AN ERROR AND IS BEING CORRECTED BY RAISING A NEW FAULT (TTG8Q00H8WYR);[04] THIS FAULT HAS AN ERROR AND IS BEING CORRECTED BY RAISING A NEW FAULT (TTG8Q00H8WYR)

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