Service difficulty report · Bulkhead Web · Boeing 7378H4

Difficulty date
December 12, 2022
Submitted
January 9, 2023
Operation
Air carrier
Aircraft
N8605E
Make and model
Boeing 7378H4
Aircraft serial
36891
Aircraft time
33,907 hours, 15,457 cycles
Part
Bulkhead Web
Condition
Cracked
Location
Bs 663
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

CENTER WING REAR SPAR VAPOR WEB STA 663 AT RIGHT SIDE HAS CRACK;BETWEEN RBL15.54 TO RBL 31.84<[01] MEASURMENTS;[02] PERFORMED VISUAL INSPECTION ON VAPOR BARRIER AND FOUND CRACK 11' AND FOUND CONTAMINATION PER B737 NDTM 51-05-01;[03] PERFORMED STOP DRILL SIZE 0.25 DIAMETER AT THE END OF THE CRACK PER B737 SRM 57-10-10-2R-2 STEP 6;[04] PREPARED DAMAGED AREA ON VAPOR BARRIER FOR REPAIR PER B737 SRM 51-70-04-2R-10 AND 51-70-04-2R-0 PARAGRAPH 4.E;[05] VERIFIED STEPS 1-4;[06] REPAIRED DAMAGED AREA AT R/H VAPOR BARRIER FOR REPAIR PER B737 SRM 51-70-04-2R-10 AND 51-70-04-2R-0 PARAGRAPH 4 L; M AND N. MATERIAL USED GLASS FIBER PLIES PO#:1690463 AND RESIN EY3804 AB PO#:1800218.;[07] VERIFIED STEP 6;[08] APPLIED TEFLON PAINT ON R/H VAPOR WEB REF B 737 AMM 51-21-81-370-802;[09] VERIFIED STEP # 8 AS ACCOMPLISHED .;[10] VERIFIED RII STEPS 3 AND 4;COMPLETE;[11] VERIFIED RII STEPS 3;4; AND 6;COMPLETE

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