Service difficulty report · Vapor Barrier · Boeing 7377CT

Difficulty date
January 30, 2023
Submitted
March 8, 2023
Operation
Air carrier
Aircraft
N567WN
Make and model
Boeing 7377CT
Aircraft serial
32747
Aircraft time
67,166 hours, 34,728 cycles
Part
Vapor Barrier
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

COMP- REPAIR LH VAPOR BARRIER CRACK<[01] MEASUREMENTS.;[02] REMOVED THE DAMAGED PLIES AND PREPARED DAMAGED AREA TO APPLY THE GLASS FABRIC REPAIR PLIES; DRILLED 0.25 INHC DIAMETER STOP HOLES AT THE CRACK END. REF B737 SRM 51-70-04-2R-10 PARAGRAP 4 AND SRM 57-10-10-2R-2 PARAGRAPH 3 A.;[03] VERIFIED REMOVAL OF THE DAMAGED PLIES AND PREPARED DAMAGED AREA TO APPLY THE GLASS FABRIC REPAIR PLIES; DRILLED 0.25 INHC DIAMETER STOP HOLES AT THE CRACK END. REF B737 SRM 51-70-04-2R-10 PARAGRAP 4 AND SRM 57-10-10-2R-2 PARAGRAPH 3 A. OK TO INSTALL THE REPAIR.;[04] REPAIRED DAMAGED AREA AND TAP TEST INSPECTION AT LH VAPOR BARRIER AS PER B737SRM 51-70-04-2R-10 AND NTM 51-05-01 MATERIAL USE RESIN PO#1800112 FIBERGLASS PO#1690463;[05] VERIFIED STEP NO 4. OK TO DRILL HOLES.;[06] LOCATED AND DRILLED REPAIRED VAPOR BARRIER PER REF SRM 51-40-05-0G-0;[07] PRIMER AND TOPCOAT APPLICATION REF TASKCARD #TTG8Q00HH5FG;[08] VERIFIED 6-7.;[09] CORRECTION TO STEP #5.<BR>RII<BR>VERIFIED STEP NO 4. OK TO DRILL HOLES.;[10] (RII) FINAL INSPECTION; WORK PERFORMED.

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