Service difficulty report · Intercostal · Boeing 7377CT

Difficulty date
August 14, 2023
Submitted
September 19, 2023
Operation
Air carrier
Aircraft
N7831B
Make and model
Boeing 7377CT
Aircraft serial
32752
Aircraft time
63,649 hours, 32,943 cycles
Part
Intercostal
Part number
UNKNOWN
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 BTW STA 767 TO STA 787 RBL 21 WL 157 AT AFT CARGO COMPARTMENT 2023-506821<[01] REPLACED WEB - INTERCOSTAL (SHIELD WEB) AND FASTENERS LOC. BTW STA 767 TO STA 787 RBL 21 AT AFT CARGO COMPARTMENT. IAW B737-700 SRM 51-10-02 ITEM 9 AND DRAWING 146A0081 REV.A . SEE INDIVIDUAL SIGN-OFF BELOW;[02] REPLACED WEB - INTERCOSTAL (SHIELD WEB) AND FASTENERS LOC. BTW STA 767 TO STA 787 RBL 21 AT AFT CARGO COMPARTMENT. IAW B737-700 SRM 51-10-02 ITEM 9 AND DRAWING 146A0081 REV.A . SEE INDIVIDUAL SIGN-OFF BELOW ITEM RII

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