Service difficulty report · Barrier · Boeing 7377Q8

Difficulty date
March 15, 2023
Submitted
April 3, 2023
Operation
Air carrier
Aircraft
N7819A
Make and model
Boeing 7377Q8
Aircraft serial
30649
Aircraft time
65,235 hours, 39,672 cycles
Part
Barrier
Condition
Cracked
Location
Zn 100 Fus Lower
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

R/H BS663 UPPER ATTACH ANGLE IS CRACKED ON VAPOR BARRIER LBL8 WL167.68<[01] CORRECTION TASK DETAIL SHOULD STATE ' L/H BS663 UPPER ATTACH ANGLE IS CRACKED ON VAPOR BARRIER LBL8 WL167.68 ';[05] REMOVED DAMAGED SECTION UPPER ATTACH ANGLE ON VAPOR BARRIER LBL6-LBL12 BS663 WL167.68 AND PERFORMED DVI ON REPAIR AREA AND NO ADDITIONAL DAMAGED FOUND IAW SRM 57-10-10-2R-5 PAR. 4B AND D.;[06] VERIFIED CORRECTIVE ACTIONS STEP 5.;[07] REQUIRED NDI INSPECTION ON REPAIR AREA BS 663 LBL 6-12 WL 167; OPEN HOLES AND FREE CRACK CUT OUT IAW SRM 57-10-10-2R-5.;[08] INSTALLED EWIS PROTECTION ON REPAIR AREA IAW AMM 20-60-07.;[09] -1 AND -2 WHERE FABRICATED PER SRM 57-10-10-2R-5 REFER TO ATS BUILD SHEETS 553591 AND 553592.;[10] CORRECTION TO STEP 9. -1 AND -2 REPAIR PARTS WHERE FABRICATED PER SRM 57-10-10-2R-5 REFER TO ATS BUILD SHEETS 553591 AND 553592.;[12] LOCATED AND DRILLED REPAIR PARTS IAW SRM 57-10-10-2R-5. OK TO INSTALL.;[13] VERIFIED ITEM 12 CORRECTIVE ACTIONS. OK TO INSTALL.;[14] INSTALLED REPAIR PARTS ON BS 663 LBL 6-18 WL167 IAW SRM 57-10-10-2R-5.;[15] INSTALLED REPAIR PARTS ON BS 663 LBL 6-18 WL167 IAW SRM 57-10-10-2R-5 PAR. 4 L.;[16] VERIFIED INSTALLED REPAIR PARTS ON BS 663 LBL 6-18 WL167 IAW SRM 57-10-10-2R-5 PAR. 4 L(1)-(7) OF CORRECTIVE ACTION STEP 15. CAP SEAL REQUIRED.;

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