Service difficulty report · Web · Boeing 7377H4

Difficulty date
June 15, 2026
Submitted
July 18, 2026
Operation
Air carrier
Aircraft
N930WN
Make and model
Boeing 7377H4
Aircraft serial
36636
Aircraft time
55,646 hours, 33,976 cycles
Part
Web
Condition
Corroded
Location
Zone 100
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 ON WEB UPPER SILL DOOR CUT OUT, BS 787 TO 847, STR 18R, WL 200 IN THE AFT CARGO BAY. REPLACED WEB UPPER MAIN SILL AND FASTENERS IAW SRM 51-40-02-0G-0; DWG 146A0080 SHEET 16 REV:A AND DWG 146A8111 SHEET 16 REV-.

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