Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
January 29, 2023
Submitted
February 22, 2023
Operation
Air carrier
Aircraft
N276WN
Make and model
Boeing 7377H4
Aircraft serial
32530
Aircraft time
52,194 hours, 31,383 cycles
Part
Intercostal
Condition
Corroded
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

CORROSION WEB - INTERCOSTAL LOCATED BETWEEN BS 767 AND BS 787 S-25R RBL 21 WL 156 AT AFT CARGO COMPARTMENT 2023-83789<[01] REPLACED WEB - INTERCOSTAL AND FASTENERS LOCATED BETWEEN BS 767 AND BS 787 S-25R RBL 21 WL 156 AT AFT CARGO COMPARTMENT IAW B737-700 SRM 51-40-02; B737-700 SRM 51-10-02 ITEM 9 AND DWG 146A0081 SHEET 31 REV- ?SEE INDIVIDUAL SIGN OFF BELOW?.;[02] CORRECTED STEP 1<BR>REPLACED WEB - INTERCOSTAL AND FASTENERS LOCATED BETWEEN BS 767 AND BS 794.25 S-25R RBL 21 WL 156 AT AFT CARGO COMPARTMENT IAW B737-700 SRM 51-40-02; B737-700 SRM 51-10-02 ITEM 9 AND DWG 146A0081 SHEET 31 REV- ?SEE INDIVIDUAL SIGN OFF BELOW?.;[03] CERTIFIED STEP 2 COMPLETED<BR>ITEM RII

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