Service difficulty report · Angle · Boeing 737

Difficulty date
January 10, 2022
Submitted
April 29, 2022
Operation
Air carrier
Aircraft
N483WN
Make and model
Boeing 737
Aircraft serial
32472
Aircraft time
58,938 hours, 34,840 cycles
Part
Angle
Condition
Cracked
Location
Center Wing Box
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: A125-01 - CRACK NOTED AT BS663; RBL 09 AT AFT UPPER AC BAY BULKHEAD ATTACH ANGLE TO CENTER TANK ;LOWER SKIN. / [01] REMOVED FASTENER AT BS663 RBL 09 AT AFT UPPER AC BAY BULKHEAD ATTACH ANGLE TO CENTER TANK LOWER SKIN I/A/W SRM 51-40-02-0G-0;[02] CUT AND REMOVED DAMAGED ATTACH ANGLE IAW SRM 57-10-10-2R-5 REPAIR 5;[03] PERFORMED DVI OF REPAIR AREA AND UNDERLYING STRUCTURE. NO DEFECTS IAW SRM 57-10-10-2R-5 REPAIR 5;ACCOMPLISHED DVI OF REPAIR AREA; NO DEFECTS.;[05] COMPLETED NDT INSP FOR DAMAGE ON EDGES OF DAMAGE CUTOUT ON ANGLE IAW 737 NDT M/M PART 6; 51-00-00; P-23; NO DEFECTS ;[06] COMPLETED NDT FOR DAMAGE IN ALL CURRENTLY OPENED FASTENER HOLES COMMON TO REPAIR AREA IAW 737 NDT M/M PART 6; 51-00-00; P-16; NO DEFECTS; [07] RECIEVED -1 REPLACEMENT ANGLE FROM BACKSHOP ON WO 43116-5000-0003. RECIEVED -2 SPLICE ANGLE FROM BACKSHOP ON WO 43116-5000-0004;[09] FABRICATED REPAIR PARTS IAW SRM 57-10-10-2R-5 REPAIR 5;[11] TREATED AND PRIMED REPAIR PARTS AND CUT EDGES IAW SRM 57-10-10-2R-5 REPAIR 5;[14] INSTALLED REPAIR PARTS USING P/S 870 B-2 ON ALL FAYING SURFACES. SEALANT MIXED ON 13 JAN 21 @ 0800. SQUEEZE OUT AT 1400 ON 13 JAN 21 IAW SRM 57-10-10-2R-5 REPAIR 5; [16] CAP AND FILLET SEALED FASTENERS USING P/S 870 B-2. SEALANT MIXED ON 13 JAN 22 @ 1300. CAP SEALED COLLARS INSIDE FUEL TANK USING 1776 B-2 MIXED AT 1300 ON 13 JAN 22 IAW SRM 57-10-10-2R-5 REPAIR 5;[19] APPLIED CIC TO REPAIR AREA IAW SRM 57-10-10-2R-5 REPAIR 5; AUDIT COMPLETE