Service difficulty report · Rib · Boeing 7377H4

Difficulty date
March 23, 2025
Submitted
April 28, 2025
Operation
Air carrier
Aircraft
N220WN
Make and model
Boeing 7377H4
Aircraft serial
32491
Aircraft time
64,118 hours, 38,459 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 INDICATION FOUND ON LT HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.9 RIB AND 24.0 INCH. FROM FRONT SPAR. INBOARD SIDE OF RIB. CRACK LENGTH = 0.350 INCH. APPROX. 2025-204861. REFER TO FAULT TTG8Q00ZF38D WHERE EA 25-155-00868 WAS ADDED AS A SUBTASK.

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