Service difficulty report · Vapor Barrier · Boeing 7378H4

Difficulty date
January 2, 2025
Submitted
January 27, 2025
Operation
Air carrier
Aircraft
N8526W
Make and model
Boeing 7378H4
Aircraft serial
36972
Aircraft time
26,246 hours, 13,117 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

STA 663 VAPOR BARRIER UPPER ATTACH ANGLE HAS CRACK AT LBL 33<[01] REJECTION INITIATED ON STEP #3 DUE TO: STEP #1 SHOWS PANEL REMOVED TO FOM INSTEAD OF CREATING A FOUND FAULT AS REQUIRED BY MPM 52.2.1.;[02] COMPLETED NDT STEP 4 IAW NDT MANUAL PART 6 PROCEDURE 16;[03] ADDED SIX DIGIT TO REF;[04] LOCATED AND DRILLED NEW ATTACH ANGLE PER SRM 51-40-02 / SRM 51-10-02. NEEDS OK TO INSTALL PART.;[05] COMPLIED WITH INSPECTION OF THE LOCATED AND DRILLED NEW ATTACH ANGLE FROM STOCK PER SRM 51-40-02 / SRM 51-10-02. OK TO INSTALL PART.;[06] INSTALLED FASTENERS COMMON TO FUEL TANK ON UPPER CHORD PER SRM 51-40-02;[07] COMPLIED WITH INSPECTION OF THE INSTALLED FASTENERS COMMON TO FUEL TANK ON UPPER CHORD PER SRM 51-40-02 STEP #6;[08] REJECTION FOR STEPS 1 AND 3 HAS BEEN C/W ON TTG8Q00Y5A6E;[09] REJECTION FOR STEPS 1 AND 3 HAS BEEN C/W ON TTG8Q00Y5A6E;[10] REMOVED AND REPLACED L/H STA 663 VAPOR BARRIER UPPER ATTACH ANGLE PER SRM 51-40-02. SEE STEPS AND CORRECTIVE ACTIONS FOR WORK SIGN OFFS.;[11] VERIFIED REMOVED AND REPLACED L/H STA 663 VAPOR BARRIER UPPER ATTACH ANGLE PER SRM 51-40-02. SEE STEPS AND CORRECTIVE ACTIONS FOR WORK SIGN OFFS.;[12] RII IS C/W. VERIFIED REMOVED AND REPLACED L/H STA 663 VAPOR BARRIER UPPER ATTACH ANGLE PER SRM 51-40-02. SEE STEPS AND CORRECTIVE ACTIONS FOR WORK SIGN OFFS.

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