Service difficulty report · Stiffener · Boeing 7378H4

Difficulty date
November 4, 2024
Submitted
December 6, 2024
Operation
Air carrier
Aircraft
N8605E
Make and model
Boeing 7378H4
Aircraft serial
36891
Aircraft time
39,948 hours, 18,873 cycles
Part
Stiffener
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 STIFFENER ASSY LOCATED BS540 BETWEEN BL0 TO RBL 24.75 AT CENTER WING BOX 2024-686152<[01] REPLACED STIFFENER ASSY DUE TO NO FOUND ALLOWABLE DAMAGE IN B737-800 SRM LOCATED BS540 BETWEEN BL0 TO RBL 24.75 AT CENTER WING BOX IAW B737-800 SRM 51-10-02 ITEM 9 AND SRM 51-40-02<BR>LENGTH CRACK: 509 TOOL USED:<BR>DIGITAL CALIPER <BR>PN: 500-197-30<BR>SN: B24000968<BR>DUE DATE: 06-JUN-25;[02] REPLACED STIFFENER ASSY DUE TO NO FOUND ALLOWABLE DAMAGE IN B737-800 SRM LOCATED BS540 BETWEEN BL0 TO RBL 24.75 AT CENTER WING BOX IAW B737-800 SRM 51-10-02 ITEM 9 AND SRM 51-40-02<BR>LENGTH CRACK: 509 TOOL USED:<BR>DIGITAL CALIPER <BR>PN: 500-197-30<BR>SN: B24000968<BR>DUE DATE: 06-JUN-25

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