Service difficulty report · Attach Angle · Boeing 7378H4

Difficulty date
January 12, 2025
Submitted
February 3, 2025
Operation
Air carrier
Aircraft
N8679A
Make and model
Boeing 7378H4
Aircraft serial
36932
Aircraft time
29,800 hours, 14,689 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

R/H VAPOR BARRIER ATTACH ANGLE STA 663 HAS CRACK ON VERTICAL LEG AT RBL 35<CUT AND REMOVED DAMAGED R/H VAPOR BARRIER ATTACH ANGLE STA 663 FROM RBL 31 TO RBL 65 PER SRM 57-10-10-2R-5 REPAIR 5.;[05] FORMED SPLICE ANGLE FROM .071? THICK 2024-T3 CLAD SHEET PER SRM 57-10-10-2R-5 ;[06] LOCATED NEW HOLES IN R/H REPAIR ANGLE USING P/N 111A1322U10 PER SRM 57-10-10-2R-5 AND EA 25-157-00119; FABRICATED; LOCATED; AND DRILLED R/H VAPOR BARRIER ATTACH ANGLE STA 663 REPAIR SPLICE PER SRM 57-10-10-2R-5 AND EA 25-157-00119.; [10] VERIFIED WORK PERFORMED ON CORRECTIVE ACTION #9; [11] TRIMMED; DEBURRED; TREATED AND PRIMED BARE METAL ON NEW VAPOR BARRIER ATTACH ANGLE PER SRM SRM 57-10-10-2R-5 AND EA 25-157-00119; INSTALLED REPAIR SPLICE RIVETS THROUGH VERTICAL LEG AND 5 ADDITIONAL -5 RIVETS THROUGH THE VERTICAL LEG OF REPAIR ANGLE PER SRM 57-10-10-2R-5 AND EA 25-157-00119 AND EA M-24-157-02340; [16] INSTALLED HI-LOCK FASTENERS THAT PENETRATE FUEL CELL PER SRM 57-10-10-2R-5ACCOMPLISHED REPAIR OF R/H VAPOR BARRIER ATTACH ANGLE STA 663 AT RBL 35 PER SRM 57-10-10-2R-5; EA 25-157-00119; AND EA M-24-157-02340.

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