Service difficulty report · Rib · Boeing 7377H4

Difficulty date
November 26, 2022
Submitted
January 9, 2023
Operation
Air carrier
Aircraft
N439WN
Make and model
Boeing 7377H4
Aircraft serial
29834
Aircraft time
64,965 hours, 38,601 cycles
Part
Rib
Condition
Cracked
Location
Horizontal Stab
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 LEADING EDGE RIB LOCATED L/E STA 95.96 AT RT HORIZONTAL STABILIZER 2022-664228<[01] REPLACED LEADING EDGE RIB LOCATED L/E STA 95.96 AT RT HORIZONTAL STABILIZER IAW SRM B737-700 51-40-02; 51-10-02 ITEM 9 AND DRAWING DWG NO. 186A1001; SHEET 10; REV. A;[02] CORRECTED STEP 1. REPLACED LEADING EDGE RIB LOCATED L/E STA 95.96 AT RT HORIZONTAL STABILIZER IAW SRM B737-700 51-40-02; 51-10-02 ITEM 9 AND DRAWING DWG NO. 186A1001; SHEET 10; REV. A; SEE INDIVIDUAL STEP SIGNOFFS BELOW;[03] REPLACED LEADING EDGE RIB LOCATED L/E STA 95.96 AT RT HORIZONTAL STABILIZER IAW SRM B737-700 51-40-02; 51-10-02 ITEM 9 AND DRAWING DWG NO. 186A1001; SHEET 10; REV. A; Ï¿½TEM RII SEE INDIVIDUAL STEP SIGNOFFS BELOW

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