Service difficulty report · Threshold Web · Boeing 7377H4

Difficulty date
March 2, 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
Threshold Web
Part number
654A000358
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 FCD SUB THRESHOLD WEB BETWEEN BS 440 - 492, RBL 26, WL 156. REMOVED AND REPLACED THE SUB THRESHOLD WEB, IAW SRM 51-40-02-0G-0, & DWG 143A8330, REV A.

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