Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
May 20, 2023
Submitted
June 20, 2023
Operation
Air carrier
Aircraft
N223WN
Make and model
Boeing 7377H4
Aircraft serial
32492
Aircraft time
58,632 hours, 35,032 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 FLOOR STRUCTURE LOCATED BS294.5 TO BS312 AT LBL12 AND WL208.1 FWD GALLEY AND LAV 2023-334382<[01] REPLACED WEB - INTERCOSTAL FLOOR STRUCTURE LOCATED BS294.5 TO BS312 AT LBL12 AND WL208.1 FWD GALLEY AND LAV IAW B737-700 SRM 51-40-02 AND SRM 51-10-02 ITEM 9 SEE INDIVIDUAL SING-OFF BELOW.;[02] CORRECTED STEP 1<BR>REPLACED WEB - INTERCOSTAL FLOOR STRUCTURE LOCATED BS294.5 TO BS312 AT LBL12 AND WL208.1 FWD GALLEY AND LAV IAW B737-700 SRM 51-40-02 AND SRM 51-10-02 ITEM 9; DWG 141A5600 SHEET: 2 REV : N .SEE INDIVIDUAL SING-OFF BELOW.;[03] REPLACED WEB - INTERCOSTAL FLOOR STRUCTURE LOCATED BS294.5 TO BS312 AT LBL12 AND WL208.1 FWD GALLEY AND LAV IAW B737-700 SRM 51-40-02 AND SRM 51-10-02 ITEM 9; DWG 141A5600 SHEET: 2 REV : N .SEE INDIVIDUAL SING-OFF BELOW.

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