Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
August 27, 2024
Submitted
October 7, 2024
Operation
Air carrier
Aircraft
N266WN
Make and model
Boeing 7377H4
Aircraft serial
32523
Aircraft time
58,186 hours, 34,914 cycles
Part
Stiffener
Condition
Corroded
Location
Zone 100
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 FLOOR STRUCTURE STIFFENER BTW BS 294 TO BS 312 LBL 12 AT LEVEL STR 17L AT FWD GALLEY AREA 2024-533473<[01] REPLACED INTERCOSTAL ( STIFFENER ) BTW BS 294 TO BS 312 LBL 12 AT LEVEL STR 17L AT FWD GALLEY AREA IAW B737-700 SRM 51-10-02 ITEM 9 AND INSTALLED FASTENERS IAW B737-700 SRM 51-40-02 AND DAWING # 141A5600; SHEET 2; REV N. SEE INDIVIDUAL SIGN-OFFS BELOW.;[02] CORRECTED STEP 1.<BR>REPLACED INTERCOSTAL ( STIFFENER ) BTW BS 294 TO BS 312 LBL 12 AT LEVEL STR 17L AT FWD GALLEY AREA IAW B737-700 SRM 51-10-02 ITEM 9 AND INSTALLED FASTENERS IAW B737-700 SRM 51-40-02 AND DRAWING # 141A5600; SHEET 2; REV N. SEE INDIVIDUAL SIGN-OFF BELOW.;[03] REPLACED INTERCOSTAL ( STIFFENER ) BTW BS 294 TO BS 312 LBL 12 AT LEVEL STR 17L AT FWD GALLEY AREA IAW B737-700 SRM 51-10-02 ITEM 9 AND INSTALLED FASTENERS IAW B737-700 SRM 51-40-02 AND DRAWING # 141A5600; SHEET 2; REV N. SEE INDIVIDUAL SIGN-OFF BELOW.

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