Service difficulty report · Rib · Boeing 7377H4

Difficulty date
June 2, 2026
Submitted
June 24, 2026
Operation
Air carrier
Aircraft
N476WN
Make and model
Boeing 7377H4
Aircraft serial
32475
Aircraft time
72,452 hours, 43,545 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 LOCATED LE STA 86.66 RT HORIZONTAL STAB. REPLACED LEADING EDGE RIB LOCATED ON LE BS 86.66 RT HORIZONTAL STAB IAW SRM 51-10-02, PARAGRAPH 9, SRM 51-40-02, AND DWG 186A1001, SHEET 10, REV A.

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