Service difficulty report · Attach Angle · Boeing 7377H4

Difficulty date
September 14, 2021
Submitted
September 20, 2021
Operation
Air carrier
Aircraft
N473WN
Make and model
Boeing 7377H4
Aircraft serial
33832
Aircraft time
58,567 hours, 34,627 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

FOUND CRACK INDICATION IN A/C BAY AT STA 663 VAPOR BARRIER ATTACH ANGLE LBL 10<CUT AND REMOVED ATTACH ANGLE IAW SRM 57-10-10-2R-5 REPAIR 5 FIG 202. PERFORMED DVI OF REPAIR AREA & UNDERLYING STRUCTURE. NO DEFECTS IAW SRM 57-10-10-2R-5, REPAIR 5. HFEC IAW NDT PART 6 51-00-00 PROC 16. NO DEFECTS. FABRICATED REPAIR PARTS IAW SRM 57-10-10-2R-5 REPAIR 5. TREATED & PRIMED REPAIR PARTS & CUT EDGE IAW SRM 57-10-10-2R-5 REPAIR 5. INSTALLED REPAIR PARTS IAW SRM 57-10-10-2R-5 REPAIR 5. BONDING CHECKS GOOD. APPLIED CIC TO REPAIR AREA IAW SRM 57-10-10-2R-5 REPAIR 5. LEAK CHECK IAW 28-11-00-400-801 NO LEAKS.

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