Service difficulty report · Rib · Boeing 7377H4

Difficulty date
December 1, 2025
Submitted
December 18, 2025
Operation
Air carrier
Aircraft
N459WN
Make and model
Boeing 7377H4
Aircraft serial
32497
Aircraft time
69,271 hours, 41,588 cycles
Part
Rib
Condition
Cracked
Location
Zone 300
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

CRACK LEADING EDGE RIB AT STA 95.96 OF THE RT HORIZONTAL STAB. REPLACED THE RIB IAW SRM 51-10-02, ITEM 9, AND INSTALLED FASTENERS IAW SRM 51-40-02, AND DRAWING 186A1001, SHEET 10, REV A.

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