Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
July 1, 2026
Submitted
July 28, 2026
Operation
Air carrier
Aircraft
N486WN
Make and model
Boeing 7377H4
Aircraft serial
33852
Aircraft time
71,315 hours, 42,907 cycles
Part
Stiffener
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

LH HORIZONTAL STABILIZER RIB 2, STAB STA 101.9, 1ST STIFFENER IS CRACKED AT LOWER END. REPAIRED THE LT HORIZONTAL STAB RIB , 1ST STIFFENER AT LOWER END IAW SRM 55-10-09-2R-5.

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