Service difficulty report · Barrier · Boeing 7377H4

Difficulty date
June 9, 2023
Submitted
June 28, 2023
Operation
Air carrier
Aircraft
N942WN
Make and model
Boeing 7377H4
Aircraft serial
36648
Aircraft time
45,425 hours, 27,767 cycles
Part
Barrier
Part number
UNKNOWN
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

RIGHT VAPOR BARRIER HAS SIGNS OF CRACK.<[01] REPAIRED DAMAGED AREA AT RIGHT VAPOR BARRIER PER B373 SRM 51-70-04-2R-0 PARAGRAPH (4.N.2) MATERIAL USED RESIN EY-3804 PO#1800550 AND FIBER GLASS BMS9-3 PO#1738579; PERFORMED VISUAL INSPECTION AND TAP TEST ON REPAIR AREA NO DELAMINATION FOUND PER B737 SRM51-70-04-2R-0 PARAGRAPH (4.O.1) AND B737 NTM 51-05-01 AND APPLIED PRIMER TO FWD SIDE OF RIGHT VAPOR BARRIER AT STA. 663 PER REF. AMM 51-21-72-370-804 AND APPLIED TEFLON FINISH TO AFT SIDE OF RIGHT VAPOR BARRIER AT STA. 663 PER REF. AMM 51-21-81-370-802.;[02] VERIFIED / INSPECTED ENTRY #1 IS AS STATED . ALL STEPS ARE C/W .

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