Service difficulty report · Support · Boeing 7377H4

Difficulty date
July 24, 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
Support
Condition
Corroded
Location
Bs 440-492
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 LOWER SILL LOCATED BTW BS 440 TO BS 492.4 STR 25R/26R WL 156 AT FWD CARGO COMPARTMENT ; 2021-348760 / [01] TOOL USED DIGITAL CALIPER P/N 700-113-10 S/N 0031753 DUE DATE 30-SEP-21.; [02] TOOL USED: P/N: 45MG; S/N: 130066701; DUE DATE: 22-APR-22; [03] REPLACED LOWER SILL LOCATED BTW BS 440 TO BS 492.4 STR 25R/26R WL 156 AT FWD CARGO COMPARTMENT IAW B737-700 SRM 51-10-02 AND DRAWING 143A8330 REV -; [04] JOB COMPLETE RR INSPECTION DONE.

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