Service difficulty report · Web · Boeing 7377H4

Difficulty date
March 9, 2026
Submitted
March 30, 2026
Operation
Air carrier
Aircraft
N249WN
Make and model
Boeing 7377H4
Aircraft serial
34951
Aircraft time
64,100 hours, 38,781 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 ACB LOWER SILL WEB BETWEEN BS 794 - 847, RBL 22, WL 156. REMOVED AND REPLACED THE ACB LOWER SILL WEB IAW SRM 51-10-02, PARAGRAPH 9, SRM 51-40-02, DWG 146A8121, REV-, & DWG 146A8120, REV-.

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