Service difficulty report · Attach Angle · Boeing 7377H4

Difficulty date
May 28, 2023
Submitted
June 14, 2023
Operation
Air carrier
Aircraft
N241WN
Make and model
Boeing 7377H4
Aircraft serial
32504
Aircraft time
56,814 hours, 34,050 cycles
Part
Attach Angle
Condition
Cracked
Location
Zn 100 Fus Lower
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

RIGHT HAND STA 663 CENTER TANK LOWER ATTACH ANGLE COMMON TO VAPOR BARRIER WEB IS CRACKED AT RBL 43; WL 169<[01] VERIFIED ITEM 1 OF STEPS 1 AND 2;[02] VERIFIED ITEM 1 OF STEP 3;[03] STEPS 3;4;&5 C/W;[04] VERIFIED STEP 4 ITEM 3;[05] VERIFIED ITEM 5 OF STEP 4;[06] ACCOMPLISHED SURFACE HFEC AT CUT LINE TO VERIFY CRACK FREE IAW B737 NDT P6 51-00-00 P23 TOOL 44291 DUE 03NOV23;[07] ACCOMPLISHED REPAIR OF R/H LOWER FUEL TANK ATTACH ANGLE AT BS 663; RBL 43; WL 169 IAW SRM 57-10-10-2R-5.;[08] VERIFIED TASK COMPLETE

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