Service difficulty report · None · Boeing 7377H4

Difficulty date
July 25, 2022
Submitted
September 6, 2022
Operation
Air carrier
Aircraft
N493WN
Make and model
Boeing 7377H4
Aircraft serial
32477
Aircraft time
58,674 hours, 34,928 cycles
Part
None
Part number
147A8540U7ATSMRO
Condition
Corroded
Location
Aft Galley
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 INNER CHORD LOCATED BETWEEN BS 947.5 TO BS 986.5 WL 208.1 AND LBL 51 AFT GALLEY AND LAV 2022-409987 / [01] TOOL USED: CALIPER; PN: 500-197-30; SN: A21147752; DUE DATE: 06-OCT-22.;[02] REPLACED INNER CHORD LOCATED BETWEEN BS 867.5 TO BS 1006 WL 208.1 AND LBL 51 AFT GALLEY AND LAV IAW B737-700 AND SRM 51-40-02 AND DWG 147A8501 SHEET #39 REV:C.SEE INDIVIDUAL STEP SIGN OFFS BELOW;[03] REPLACED INNER CHORD LOCATED BETWEEN BS 867.5 TO BS 1006 WL 208.1 AND LBL 51 AFT GALLEY AND LAV IAW B737-700 AND SRM 51-40-02 AND DWG 147A8501 SHEET #39 REV:C.SEE INDIVIDUAL STEP SIGN OFFS BELOW.. RII ITEM

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