Service difficulty report · Rib · Boeing 737

Difficulty date
January 3, 2022
Submitted
April 26, 2022
Operation
Air carrier
Aircraft
N944WN
Make and model
Boeing 737
Aircraft serial
36659
Aircraft time
38,945 hours, 23,467 cycles
Part
Rib
Condition
Cracked
Location
Rh Hor 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

SUPPLEMENTAL INFORMATION: CRACK FRONT SPAR INSPAR RIB 4 STA 111.10 AT 37 INCH RT HORIZONTAL STAB ; 2021-567428 / [01] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600D; S/N: 2000053402 DUE DATE: 23-APR-22; [02] PERFORMED PERMANENT REPAIR ON INSPAR RIB LOCATED STAB STA 111.10 AT 37 INCH FROM FRONT SPAR RT HORIZONTAL STAB IAW B737-700 SRM 55-10-09-2R-4 REPAIR 4 FIGURE 202 DETAIL A AND B737-700 SRM 51-40-02. PART USED: KIT T-SECTION P/N 55100003-01 BATCH SW2021002722; ALUMINUM SHEETS P/N 7075T6-020 P.O 2021 142563; 7075T6-032 P.O. 2021 160927. SEE INDIVIDUAL SING-OFFS BELLOW.; [03] PERFORMED PERMANENT REPAIR ON INSPAR RIB LOCATED STAB STA 111.10 AT 37 INCH FROM FRONT SPAR RT HORIZONTAL STAB IAW B737-700 SRM 55-10-09-2R-4 REPAIR 4 FIGURE 202 DETAIL A AND B737-700 SRM 51-40-02. PART USED: KIT T-SECTION P/N 55100003-01 BATCH SW2021002722; ALUMINUM SHEETS P/N 7075T6-020 P.O 2021 142563; 7075T6-032 P.O. 2021 160927. SEE INDIVIDUAL SING-OFFS BELLOW. RII