Service difficulty report · Attach Angle · Boeing 7378H4

Difficulty date
May 13, 2025
Submitted
June 11, 2025
Operation
Air carrier
Aircraft
N8685B
Make and model
Boeing 7378H4
Aircraft serial
36723
Aircraft time
30,143 hours, 14,930 cycles
Part
Attach Angle
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

CRACKS FOUND AT BS 663 VAPOR BARRIER UPPER ATTACH ANGLE RBL 9 & 32.<[01] MATCH DRILLED BS 663 VAPOR BARRIER UPPER ATTACH ANGLE PER SRM 51-40-02 & DWG 111A1000. NEED OK TO INSTALL ANGLE.;[02] REMOVED 663 VAPOR BARRIER ANGLE PER SRM 51-40-02.;[03] C/W RII INSPECTION OF CA #1;[04] INSTALLED FASTENERS COMMON TO FUEL TANK PER SRM 51-40-02 & DWG 111A1000.;[05] C/W INSPECTION OF C/A #4; INSTALLED FASTENERS COMMON TO FUEL TANK PER SRM 51-40-02 & DWG 111A1000.;[06] REPLACED R/H BS 663 VAPOR BARRIER UPPER ATTACH ANGLE PER SRM 51-40-02 & DWG # 111A1000.;[07] C/W RII INSPECTION OF C/A #6;[08] CHANGED RII MEASUREMENT FROM NO TO YES;[09] ALL RII INSPECTION COMPLETED

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