Service difficulty report · Attach Angle · Boeing 7378H4

Difficulty date
October 28, 2025
Submitted
November 20, 2025
Operation
Air carrier
Aircraft
N8507C
Make and model
Boeing 7378H4
Aircraft serial
41531
Aircraft time
29,852 hours, 15,036 cycles
Part
Attach Angle
Condition
Cracked
Location
Zone 100
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

CRACK FOUND ON BS 663 RT ATTACH ANGLE, RBL 34. REMOVED DAMAGED SECTION OF RT STA 663 ATTACH ANGLE FROM APPROX RBL 24 TO RBL 65. COMPLIED WITH STEP 2, COMPLIED WITH REMAINING FASTENER HOLE INSPECTION AT REPAIR HOLES IAW NDT PART 6 51-00-00, PROCEDURE 16. NO DEFECTS NOTED. PERFORMED DETAILED VISUAL INSPECTION IAW SRM 57-10-10-2R-5. INSTALLED TANK FASTENERS IAW SRM 57-10-10-2R-5. CAP SEALED FUEL TANK FASTENERS IAW SRM 57-10-10-2R-5. REPAIRED IAW SRM 57-10-10-2R-5 AND EA M-24-157-02340.

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