Service difficulty report · Web · Boeing 7377H4

Difficulty date
November 11, 2025
Submitted
December 15, 2025
Operation
Air carrier
Aircraft
N917WN
Make and model
Boeing 7377H4
Aircraft serial
36624
Aircraft time
57,012 hours, 34,522 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 WEB LOWER SILL LOCATED BETWEEN BS 440 - 492.4, RBL 22, WL 156 IN THE FWD CARGO BAY. REPLACED WEB LOWER SILL IAW SRM 51-10-02, ITEM 9, & DWG 143A8330, SHEET 42, REV A.

More about the Boeing 737-7H4