Service difficulty report · Attach Angle · Boeing 7378H4

Difficulty date
September 24, 2025
Submitted
October 27, 2025
Operation
Air carrier
Aircraft
N8504G
Make and model
Boeing 7378H4
Aircraft serial
38812
Aircraft time
29,703 hours, 14,850 cycles
Part
Attach Angle
Condition
Cracked
Location
Zone 100
Stage of operation
IN
How discovered
E
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 VAPOR BARRIER ATTACH ANGLE CRACKED AT RBL 9; BS 663. REMOVED 11 TANK FASTENERS COMMON TO THE BS 663 VAPOR BARRIER ATTACH ANGLE REPAIR, PERFORMED AN OPEN HOLE HIGH FREQUENCY EDDY CURRENT (HFEC) INSPECTION FOR ALL INITIAL TANK FASTENER HOLES IAW NDT PART 6, 51-00-00, PROCEDURE 16. NO DEFECTS NOTED. REMOVED DAMAGED SECTION OF ATTACH ANGLE IAW SRM 57-10-10-2R-5. PERFORMED DETAILED VISUAL AND OPEN HOLE HFEC INSP FOR ALL FASTENER HOLES IAW NDT PART 6; 51-00-00, PROCEDURE 16. NO DEFECTS NOTED. FABRICATED REPAIR DOUBLER & LOCATED, DRILLED HOLES IN REPAIR PARTS IAW SRM 57-10-10-2R-5. VISUAL INSPECTION ACCOMPLISHED ON PARTS FABRICATED. REPAIRED ATTACH ANGLE IAW SRM 57-10-10-2R-5 & M-24-157-02340.

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