Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
July 27, 2021
Submitted
August 24, 2021
Operation
Air carrier
Aircraft
N224WN
Make and model
Boeing 7377H4
Aircraft serial
32493
Aircraft time
53,348 hours, 31,840 cycles
Part
Stringer
Condition
Corroded
Location
Bs 351-360 S28r
Stage of operation
IN
How discovered
V
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 STRINGER 28R LOCATED AT LEVEL WL148.5 BETWEEN BS351.2 TO BS360 AT EQUIPMENT ELECTRONIC COMP ; 2021-348911 / [01] TOOLS USED: TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811020; DUE DATE: 21-JAN-22. TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811019; DUE DATE: 21-JAN-22.; [02] TOOL USED: POWER PACK P/N PE1068 S/N PE0118-94826 DUE DATE: 23-FEB-22 MULTIMETER P/N FLUKE 1587 S/N 31980129 DUE DATE: 02-DEC-21 THERMOMETER P/N FLUKE 66 S/N AE-27240 DUE DATE: 24-MAR-22; [03] REPLACED STRINGER SPLICE 28R LOCATED AT LEVEL WL148.5 BETWEEN BS351.2 TO BS360 AT EQUIPMENT ELECTRONIC COMP IAW B737-700 SRM 51-10-02 ITEM 9 AND SRM 41-40-02 AND DWG 140A9101 SHEET 24 MATERIAL USED: ALUMINUM SHEET P/N: 7075-T0-0.036 P/O: 2021 131796.; [04] REPLACED STRINGER SPLICE 28R LOCATED AT LEVEL WL148.5 BETWEEN BS351.2 TO BS360 AT EQUIPMENT ELECTRONIC COMP IAW B737-700 SRM 51-10-02 ITEM 9 AND SRM 41-40-02 AND DWG 140A9101 SHEET 24 MATERIAL USED: ALUMINUM SHEET P/N: 7075-T0-0.036 P/O: 2021 131796... RII ITEM

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