Service difficulty report · Attach Angle · Boeing 7377H4

Difficulty date
July 10, 2021
Submitted
August 2, 2021
Operation
Air carrier
Aircraft
N962WN
Make and model
Boeing 7377H4
Aircraft serial
36963
Aircraft time
33,006 hours, 20,057 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

L/H BS 663 VAPOR BARRIER UPPER ATTACH ANGLE CRACKED LBL 40 WL 164 ; / CUT OUT DAMAGE ANGLE IAW SRM 57-10-10-2R-5 FABRICATED; LOCATED AND DRILLED REPAIR PARTS IAW SRM 57-10-2R-5. MATERIAL ID:<BR>ITEM [1] 2024T3#0.063 CLAD; LOT #1457316-1 <BR>ITEM[2] 2024T3#0.071 CLAD; LOT #1461004-1; [11] APPLIED CHEMICAL CONVERSION COATING TO REPAIR PARTS IAW SRM 57-10-10-2R-5 AND SRM 51-20-01<BR>OK TO APPLY PRIMER.; [12] PERFORM DETAILED INSPECTION OF REPAIR AREA AND UNDERLYING STRUCTURE. VERIFY NO DAMAGE WITHIN REPAIR AREA. REF: SRM 57-10-10-2R-5; 4D;OK TO INSTALL REPAIR PARTS -1 REPLACEMENT ANGLE AND -2 SPLICE ANGLE PER SRM 57-10-10-2R-5; [19] OK TO INSTALL REPAIR PARTS-1 AND -2 PER SRM 57-10-10-2R-5; [20] INSTALLED FASTENERS COMMON TO HORIZONTAL FLANGE OF -1 AND -2 REPAIR PARTS PER SRM 57-10-10-2R-5.;CUT OUT DAMAGE ANGLE AND MADE REPAIR AT L/H BS 663 VAPOR BARRIER UPPER ATTACH ANGLE LBL 26 TO LBL 61 WL 164 IAW SRM 57-10-10-2R-5; [27] CUT OUT DAMAGE ANGLE; FABRICATED AND INSTALLED A REPAIR AT L/H BS 663 VAPOR BARRIER UPPER ATTACH ANGLE LBL 26 TO LBL 61 WL 164 IAW SRM 57-10-10-2R-5

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