Service difficulty report · Attach Angle · Boeing 7378H4

Difficulty date
December 1, 2025
Submitted
December 29, 2025
Operation
Air carrier
Aircraft
N8511K
Make and model
Boeing 7378H4
Aircraft serial
36670
Aircraft time
29,651 hours, 14,931 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 ON BS 663 VAPOR BARRIER UPPER ATTACH ANGLE AT LBL 9. CUT OUT AND REMOVED CRACKED SECTION OF VAPOR BARRIER ANGLE IAW SRM 57-10-10-2R-5. COMPLIED WITH OPEN HOLE INSPECTION FOR THE REMOVED ATTACH ANGLE IAW NDT MANUAL PART 6; 51-00-00 PROC.16. NO FAULTS FOUND. CUT AND FABRICATED A NEW ANGLE & DOUBLER IAW SRM 5710-10-2R-5, & SRM 51-40-05. TREATED & PRIMED THE REPAIR AREA & PARTS IAW SRM 57-10-10-2R-5. INSTALLED FASTENERS COMMON TO VAPOR ANGLE & FUEL TANK IAWRM 57-10-10-2R-5. INSTALLED FASTENERS COMMON TO VAPOR ANGLE & BULKHEAD WEB IAW SRM 57-10-10-2R-5. REPAIRED VAPOR BARRIER ANGLE IAW SRM 57-10-10-2R-5.

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