Service difficulty report · Rib · Boeing 7377H4

Difficulty date
August 10, 2023
Submitted
August 31, 2023
Operation
Air carrier
Aircraft
N410WN
Make and model
Boeing 7377H4
Aircraft serial
27897
Aircraft time
72,550 hours, 42,916 cycles
Part
Rib
Part number
NOTREPORTED
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 L/E STA 95.96 AT LEADING EDGE SKIN HORIZONTAL STABILIZER 2023-508215 (HORIZONTAL STABILIZER RH SIDE )<[01] TOOL USED: TEMPERATURE CONTROLLER P/N P3015GOES00000 S/N 142811020 DUE DATE 25 JAN 24.;[02] REPLACED RIB LOCATED ON STA 95.96 AT LEADING EDGE SKIN HORIZONTAL STABILIZER I.W. B737-700 SRM 51-10-02 PARAGRAPH 9; SRM 51-40-05 AND DWG 186A1001 SHEET: 10; REV A;[03] CORRECTED STEP 2. REPLACED RIB LOCATED ON STA 95.96 AT LEADING EDGE SKIN HORIZONTAL STABILIZER I.W. B737-700 SRM 51-10-02 PARAGRAPH 9; SRM 51-40-05 AND DWG 186A1001 SHEET: 10; REV A. SEE INDIVIDUAL SIGN OFFS BELOW.;[04] CORRECTED STEP 2 AND 3. REPLACED RIB LOCATED ON L/E STA 95.96 AT LEADING EDGE SKIN HORIZONTAL STABILIZER I.W. B737-700 SRM 51-10-02 PARAGRAPH 9; SRM 51-40-05 AND DWG 186A1001 SHEET: 10; REV A. SEE INDIVIDUAL SIGN OFFS BELOW.;[05] CORRECTED STEP 2;3 AND 4. REPLACED RIB LOCATED ON L/E STA 95.96 AT LEADING EDGE SKIN HORIZONTAL STABILIZER RH SIDE I.W. B737-700 SRM 51-10-02 PARAGRAPH 9; SRM 51-40-05 AND DWG 186A1001 SHEET: 10; REV A. SEE INDIVIDUAL SIGN OFFS BELOW.;[06] JOB COMPLETED AND CERTIFIED RII.

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