Service difficulty report · Attach Angle · Boeing 7378H4

Difficulty date
July 22, 2025
Submitted
August 19, 2025
Operation
Air carrier
Aircraft
N8501V
Make and model
Boeing 7378H4
Aircraft serial
41530
Aircraft time
29,503 hours, 14,754 cycles
Part
Attach Angle
Condition
Cracked
Location
Zone 100
Stage of operation
IN
How discovered
V
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

CRACK FOUND BS 663 VAPOR BARRIER ATTACH ANGLE AT APPROX RBL 9. REMOVED DAMAGED SECTION OF ATTACH ANGLE IAW SRM 57-10-10-2R-5. ACCOMPLISHED HFEC HOLE PROBE OF FASTENER HOLES COMMON TO FUEL TANK & HFEC SURFACE INSP OF ATTACH ANGLE CUT LINE. NO DEFECTS NOTED IAW NDT PART 6 51-00-00 PROC 16, & 51-00-00 PROC. 23. FABRICATED REPAIR PARTS IAW SRM 57-10-10-2R-5, INSTALLED TANK FASTENERS IN REPAIR PARTS COMMON TO ATTACH ANGLE IAW SRM 57-10-10-2R-5, DOME SEALED FASTENERS INSIDE CENTER FUEL TANK COMMON ATTACH ANGLE IAW SOPM 20-50-19. INSTALLED & CAP SEALED FASTENERS IN VERTICAL LEG OF ATTACH ANGLE IAW SRM 57-10-10-2R-5 & EAM 157-02340. REPAIRED BS 663 ATTACH ANGLE RBL 9 IAW SRM 57-10-10.

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