Service difficulty report · Vapor Barrier · Boeing 737824

Difficulty date
June 2, 2007
Submitted
June 5, 2007
Operation
Air carrier
Aircraft
N76504
Make and model
Boeing 737824
Aircraft serial
31604
Aircraft time
2,430 hours, 809 cycles
Part
Vapor Barrier
Part number
UNK
Condition
Cracked
Location
Rt Ww
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

INSPECTION FOUND FIVE CRACKS IN THE RT WHEEL WELL FORWARD BULKHEAD (WING CENTER SECTION AFT SPAR VAPOR BARRIER). THREE OF THE CRACKS WERE LOCATED AT THE B-SYSTEM RETURN FILTER, ONE AT RBL 45, AND ONE AT RBL 25. THE VAPOR BARRIER WAS REMOVED AND REPLACED IAW ECRA 5720-02015. A DIP WAS ISSUED FOR A DETAILED REPETITIVE INSPECTION OF BOTH THE RT AND LT VAPOR BARRIERS EVERY 560 CYCLES OR 90 DAYS WHICHEVER COMES FIRST.