Service difficulty report · Vapor Barrier · Boeing 7377BD

Difficulty date
November 22, 2022
Submitted
January 10, 2023
Operation
Air carrier
Aircraft
N7742B
Make and model
Boeing 7377BD
Aircraft serial
33928
Aircraft time
51,535 hours, 27,572 cycles
Part
Vapor Barrier
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

FOUND CRACKED LOWER RT VAPOR BARRIER WEB STA 663. PERFORMED VISUAL INSPECTION AND TAP TEST INSPECTION AT RT VAPOR BARRIER WEB; FOUND 3 CRACKS (9'';8'' AND 3'') IAW SRM 51-70-04-2R-10 PARAGRAPH 4 AND NDT PART 1 51-05-01 PARAGRAPH 5. REMOVED DAMAGED PLIES AND PREPARED DAMAGED AREA TO APPLY THE GLASS FABRIC REPAIR, DRILLED STOP HOLE AT THE CRACKS END, NO WATER NOTE AT REPAIR AREA IAW SRM 51-70-04-2R-10 PARAGRAPH 4 & SRM 57-10-10-2R-2 PARAGRAPH 6. APPLIED THE GLASS FABRIC REPAIR AT DAMAGED AREA ON RT VAPOR BARIER IAW SRM 51-70-04-2R-10 PARAGRAPH 4. APPLIED TEFLON PAINT ON RT VAPOR BARRIER WEB IAW AMM 51-21-81-370-802. APPLIED PRIMER AT FWD FACE OF RT VAPOR BARRIER WEB AS PER AMM 51-21-72-370-804.

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