Service difficulty report · Rib · Boeing 7377H4

Difficulty date
November 8, 2023
Submitted
December 13, 2023
Operation
Air carrier
Aircraft
N454WN
Make and model
Boeing 7377H4
Aircraft serial
29851
Aircraft time
64,962 hours, 38,713 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

CRACK ON RIB LOCATED ON LE STA 105.26 AT LEADING EDGE AT RT HORIZONTAL STABILIZER 2023-689305<[01] REPLACEED RIB AND NEW FASTENERS LOCATED ON LE STA 105.26 AT LEADING EDGE AT RT HORIZONTAL STABILIZER IAW B737-700 SRM 51-40-02 AND DWG 186A1001 SHEET 10 REV:A AND SRM 51-10-02 STEP 9. SEE INDIVIDUAL SING-OFFS BELOW;[02] CERTIFIED STEP 1 COMPLETED

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