Service difficulty report · Angle · Boeing 7377H4

Difficulty date
May 16, 2023
Submitted
June 14, 2023
Operation
Air carrier
Aircraft
N288WN
Make and model
Boeing 7377H4
Aircraft serial
36611
Aircraft time
51,345 hours, 30,884 cycles
Part
Angle
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

CRACK INDICATIONS OBTAINED FROM OPEN FASTENER HOLES AT LH VAPOR BARRIER UPPER ATTACH ANGLE VERTICAL FLANGE AT LBL 7;23;24;29 30;31 & 41. ALSO; CRACK FOUND AT LBL 41. CRACK LENGTH : 0.718' CRACK INDICATIONS OBTAINED FROM OPEN FASTENER HOLES AT LH VAPOR BARRIER UPPER ATTACH ANGLE VERTICAL FLANGE AT LBL 7232429 3031 & 41. ALSO CRACK FOUND AT LBL 41. CRACK LENGTH : 0.718&#34;<[01] REMOVED & REPLACED LT ATTACHED ANGLE OF VAPOR BARRIER WEB; AS PER SRM 51-40-02 AND DWG 111A1000;[02] (RII) VERIFIED STEP 1

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