Service difficulty report · Structure · Boeing 7377H4

Difficulty date
April 15, 2023
Submitted
May 11, 2023
Operation
Air carrier
Aircraft
N284WN
Make and model
Boeing 7377H4
Aircraft serial
32535
Aircraft time
52,003 hours, 31,287 cycles
Part
Structure
Condition
Corroded
Location
Zn 200 Fus Top
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 ON INNER CHORD LOCATED BTW BS 986.5 TO BS 967 RBL 50 WL 208.1 AT AFT GALLEY AREA 2023-247699<[01] TOOL USED P/N: 45MG; S/N: 221860711; CAL DUE: 07-NOV-23.;[02] REPLACED INNER CHORD LOCATED BTW BS BS887 TO BS1006 RBL 50 WL 208.1 AT AFT GALLEY AREA IAW B737-700 SRM 51-10-02 ITEM 9 AND DWG DWG 147A8501 REV A <BR>SEE INDIVIDUAL SIGN OFFS BELOW;[03] CORRECTED STEP 2:<BR>REPLACED INNER CHORD LOCATED BTW BS BS887 TO BS1006 RBL 50 WL 208.1 AT AFT GALLEY AREA IAW B737-700 SRM 51-10-02 ITEM 9; SRM 51-40-02 AND DWG DWG 147A8501 REV A <BR>SEE INDIVIDUAL SIGN OFFS BELOW;[04] CERTIFIED STEP 3 COMPLETED <BR>RII

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