Service difficulty report · Vapor Barrier · Boeing 7377H4

Difficulty date
January 6, 2025
Submitted
January 6, 2025
Operation
Air carrier
Aircraft
N965WN
Make and model
Boeing 7377H4
Aircraft serial
36677
Aircraft time
43,088 hours, 26,556 cycles
Part
Vapor Barrier
Condition
Cracked
Location
Zone 100
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

CENTER WING REAR SPAR VAPOR WEB IS CRACKED ON THE LEFT SIDE OF THE KEEL; JUST FORWARD OF THE HYDRAULIC FLOW REGULATOR VALVE. CENTER WING REAR SPAR VAPOR WEB IS CRACKED ON THE LEFT SIDE OF THE KEEL JUST FORWARD OF THE HYDRAULIC FLOW REGULATOR VALVE.<[01] REVIEWED ALL DOCUMENTATION AND DAMAGE TO ENSURE ACCURACY; DAMAGE IDENTIFICATION; AND DIMENSIONS ARE CORRECT AND PRESENT; REFERENCE DOCUMENTATION AND TLD REQUIREMENTS ARE CORRECT; AND ANY NDT REQUIREMENTS HAVE BEEN ACCOMPLISHED AS PER MPM 52.7.1 AND MPM 52.7.1.1<BR><BR>CHOSE SRM SELECT REFERENCE 57-10-10-1A-2 FOR 1200 FLIGHT CYCLE REINSPECT;[02] PERFORMED INTERIM REPAIR IAW SRM 57-10-10-1A-2 AND EA M-21-157-00675. REQUIRES REINSPECT OF AREA EVERY 1200 FLIGHT CYCLES OR MORE FREQUENTLY.

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