Service difficulty report · Angle · Boeing 737*

Difficulty date
November 17, 2021
Submitted
November 22, 2021
Operation
Air carrier
Aircraft
N475WN
Make and model
Boeing 737*
Aircraft serial
32474
Aircraft time
58,806 hours, 34,711 cycles
Part
Angle
Condition
Cracked
Location
Center Wing
Stage of operation
UK
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

FOUND CRACK IN L/H A/C BAY STA 663 VAPOR BARRIER UPPER ATTACH ANGLE AT LBL 40 ; / [01] REMOVED STIFFENER ON FWD SIDE OF STA 663 LBL 40 TO FOM IAW SRM 51-40-02-0G-0; [02] REMOVED U-CHANNEL ON FWD SIDE STA 663 LBL 43-65 TO FOM IAW SRM 51-40-02-0G-0; [03] CUT AND REMOVED DAMAGED ATTACH ANGLE IAW SRM 57-10-10-2R-5 REPAIR 5; [04] PERFORMED DVI OF REPAIR AREA AND UNDERLYING STRUCTURE. NO DEFECTS NOTED IAW SRM 57-10-10-2R-5 REPAIR 5; [05] RECIEVED -1 REPLACEMENT ANGLE FROM BACKSHOP ON WORK ORDER 42971-5000-0001. RECIEVED -2 SPLICE ANGLE FROM BACKSHOP ON WORK ORDER 42971-5000-0002; [06] VERIFIED STEP 4.; [07] PERFORMED NDT IAW B737 NDT PT.6; 51-00-00 PROC. 16. NO DEFECTS NOTED . TOOL# 36303 CAL DUE 13APR22.; [08] VERIFIED ITEMS 3 AND 5; [09] FABRICATED REPAIR PARTS IAW SRM 57-10-10-2R-5 REPAIR 5; [10] VERIFIED ITEM 9.<BR>OK TO TREAT AND PRIME.; [11] TREATED AND PRIMED REPAIR PARTS AND CUT EDGE IAW SRM 57-10-10-2R-5 REPAIR 5; [12] VERIFIED ITEM 11.<BR>OK TO INSTALL REPAIR PARTS.