Service difficulty report · Bulkhead Web · Boeing 7377H4

Difficulty date
February 25, 2021
Submitted
March 15, 2021
Operation
Air carrier
Aircraft
N278WN
Make and model
Boeing 7377H4
Aircraft serial
36441
Aircraft time
46,511 hours, 27,789 cycles
Part
Bulkhead Web
Condition
Cracked
Location
Mid Cabin
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

CUSTOMER REQUEST: R/H VAPOR BARRIER CRACKED / CLEANED AND REPAIRED DAMAGE R/H VAPOR BARRIER AN STA 663 RBL 44' SIZE OF CRACK 8'. STOP DRILL CRACK PERFORMED DRY-OUT; AND INSTALLED A PERMANENT REPAIR AS PER B737 SRM 51-70-04-2R-10. PERFORMED TAP-TEST ON REPAIRED AREA FOUND NO DELAMINATION AS PER B737 NDT 51-05-01 (SEC5) PRIMED AND TOP COAT VAPOR BARRIER AS PER B737 AMM 51-21-72-370-801.MATERIAL USED PO#1694548; PO#1709723; PO#1693633; PO#1704546; PO#1705870

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