Service difficulty report · Intercostal · Boeing 7377Q8

Difficulty date
February 6, 2023
Submitted
March 2, 2023
Operation
Air carrier
Aircraft
N7853B
Make and model
Boeing 7377Q8
Aircraft serial
30707
Aircraft time
60,009 hours, 39,704 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 SUPPORT ANGLE FLOOR STRUCTURE BS 540 AT LEVEL BL0 CENTER SECTION 2023-109524<[01] REPLACED WEB-INTERCOSTAL LOCATED FLOOR STRUCTURE BS 540 AT LEVEL BL0 TO LBL 24.75 CENTER SECTION PASSENGER CABIN IAW B737-700 SRM 51-40-02; SRM 51-10-02 Ï¿½TEM 9 AND DWG 143A5240 SHEET: 14 REV:-<BR>SEE INDIVIDUAL SIGN OFFS BELOW.;[02] CORRECTED STEP 1<BR>REPLACED SUPPORT BRACKET LOCATED FLOOR STRUCTURE BS 540 AT LEVEL BL0 TO LBL 24.75 CENTER SECTION PASSENGER CABIN IAW B737-700 SRM 51-40-02; SRM 51-10-02 Ï¿½TEM 9 AND DWG 143A5240 SHEET: 14 REV:-<BR>SEE INDIVIDUAL SIGN OFFS BELOW;[03] TASK COMPLETED ; RII <BR>SEE INDIVIDUAL SIGN OFFS BELOW

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