Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
January 7, 2023
Submitted
February 2, 2023
Operation
Air carrier
Aircraft
N405WN
Make and model
Boeing 7377H4
Aircraft serial
27893
Aircraft time
71,985 hours, 42,752 cycles
Part
Intercostal
Part number
NOTENTERED
Part serial
NOTENTERED
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 BTW STA 807 TO STA 827 AT LEVEL STR 18R AND WL 198 AT AFT CARGO COMPARTMENT 2023-36433<[01] REPLACED WEB-INTERCOSTAL LOCATED BTW STA 794 TO STA 847 AT LEVEL STR 18R AND WL 198 AT AFT CARGO COMPARTMENT. IAW SRM B737-700 51-40-02; SRM 51-10-02 ITEM 9; DRAWING 146A8110 REV: - ; DRAWING 146A8111 REV: - AND DRAWING DRAWING 146A8113 REV: A MATERIAL USED: 7075T6 0.040? P.O: 2021 152040 SEE INDIVIDUAL SIGN OFF BELOW.;[02] CERTIFIED RII WORK PERFORMED. <BR>SEE INDIVIDUAL SIGNOFFS BELOW.

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