Service difficulty report · Attach Angle · Boeing 7377H4

Difficulty date
July 8, 2021
Submitted
July 12, 2021
Operation
Air carrier
Aircraft
N470WN
Make and model
Boeing 7377H4
Aircraft serial
33860
Aircraft time
58,075 hours, 34,486 cycles
Part
Attach Angle
Condition
Cracked
Location
Bs 663 Bulkhead
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 INDICATION IN A/C BAY AT FWD SIDE OF BS 663 UPPER ANGLE AT RBL 9. CUT AND REMOVED ATTACH ANGLE IAW SRM 57-10-10-2R-5. PERFORMED DETAILED INSPECTION OF REPAIR AREA & UNDERLYING STRUCTURE, NO DEFECTS NOTED IAW SRM 57-10-10-2R-5 REPAIR 5. HFEC IAW NDT PART 6; 51-00-00 PROC 16. NO DEFECTS NOTED. FABRICATED REPAIR PARTS IAW SRM 57-10-10-2R-5 REPAIR 5. TREATED AND PRIMED REPAIR PARTS IAW SRM 57-10-10-2R-5 REPAIR 5. INSTALLED REPAIR IAW SRM 57-10-10-2R-5 REPAIR 5. CAP SEALED FASTENERS INSIDE FUEL TANK, FILLET SEALED AND CAP SEALED REPAIR IAW SRM 57-10-10-2R-5 REPAIR 5. ELECTRICAL BOND CHECK CHECKS GOOD.

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