Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
May 1, 2020
Submitted
May 26, 2020
Operation
Air carrier
Aircraft
N474WN
Make and model
Boeing 7377H4
Aircraft serial
33861
Aircraft time
54,664 hours, 32,440 cycles
Part
Vapor Barrier
Condition
Cracked
Location
Lt Mlg Ww
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

THERE IS A COMPOSITE WEB BARRIER SKIN CRACKED AT STA 663 AND LBL 40 FROM WL 155 TO 165 APROX. CLEANED AND REPAIRED DAMGE AREAS AT LT VAPOR BARRIER AT FS 663' LBL 40'; REPAIRED CRACK AT LBL 17' SIZE 11' AND LBL 43' SIZE 15 INCHES AS PER SRM 51-70-04-2R-0 REPAIR 2R-0; TREATED AND PRIMED VAPOR BARRIER WEB IN REF AMM 51-21-73-370-804.

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