Service difficulty report · Rib · Boeing 7377H4

Difficulty date
September 29, 2023
Submitted
October 12, 2023
Operation
Air carrier
Aircraft
N421LV
Make and model
Boeing 7377H4
Aircraft serial
32452
Aircraft time
71,597 hours, 42,416 cycles
Part
Rib
Part number
UNKNOWN
Condition
Cracked
Location
Zn 300 Stabilize
Stage of operation
IN
How discovered
9
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

LEFT HORIZONTAL STAB RIB AT STAB STA. 120.30 FWD ATTACH STIFFENER CRACKED<[01] REMOVED AND REPLACED DAMAGE STIFFENER AT LEFT HORIZONTAL STAB RIB STAB STA. 120.30 FWD I.A.W SRM 51-40-02-0G-0 AND BOEING DWG 182A5304;182A2401 COMPLETED TASK;[02] VERIFIED COMPLETION OF CORRECTIVE ACTIONS 1 AND MEASUREMENT TABLE.

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