Service difficulty report · Angle · Boeing 7377H4

Difficulty date
June 13, 2022
Submitted
June 27, 2022
Operation
Air carrier
Aircraft
N203WN
Make and model
Boeing 7377H4
Aircraft serial
32483
Aircraft time
58,834 hours, 34,821 cycles
Part
Angle
Condition
Cracked
Location
Center Wing
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

FOUND CRACK IN A/C BAY ON LOWER ATTACH ANGLE WL 172 AT STA 663 RBL 40 / [01] APPLIED EWIS PROTECTION TO REPAIR AREA IAW AMM 20-60-07;[02] DISPLACED OTBD U CHANNEL SUPPORT AND PANEL SUPPORT TO FOM IAW SRM 57-10-10-2R-5;[03] REMOVED ALL FASTENERS AND TRIMMED OUT DAMAGED SECTION OF ANGLE IAW SRM 57-10-10-2R-5;[04] PERFORMED DETAILED VISUAL INSPECTION OF REPAIR AREA AND UNDERLYING STRUCTURE; NO DEFECTS NOTED IAW SRM 57-10-10-2R-5;[05] VERIFIED -1 REPLACEMENT ANGLE FABRICATED ON BACK SHOP W/O 43877-6000-0001 AND -2 SPLICE ANGLE FABRICATED ON BACK SHOP W/O 43877-6000-0002 IAW SRM 57-10-10-2R-5;[06] VERIFIED ITEMS 1 THROUGH 4;[07] VERIFIED ITEM 5;[08] HFEC IAW B737 NDT PART 6; 51-00-00 PROC 16. NO DEFECTS NOTED. TOOL#31823; DUE 23DEC22;[09] COMPLETED FABRICATION OF REPAIR PARTS (SPLICED AT RBL 30 IAW SRM 57-10-10-2R-5;[10] VERIFIED STEP 9;[11] VERIFIED STEP 9 & 10;[12] OK GIVEN TO TREAT & PRIME;[13] TREATED AND PRIMED REPAIR PARTS AND BARE SURFACES IN REPAIR AREA IAW SRM 57-10-10-2R-5;[14] VERIFIED STEP 13;[15] MIXED BMS 5-95 B2 SEALANT FOR FAYING SURFACE SEAL IAW SRM 57-10-10-2R-5<BR>MIX TIME: 7:45 16JUN22;[16] VERIFIED STEPS 13-15;[17] OK GIVEN TO INSTALL REPAIR PARTS AND DISPLACED OTBD U CHANNEL SUPPORT;[18] COMPLETED INSTALLATION OF ALL PERMANENT FASTENERS PRIOR TO SQUEEZE OUT IN REPAIR PARTS; OTBD U CHANNEL; AND DISPLACED PANEL SUPPORT IAW SRM 57-10-10-2R-5

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