Service difficulty report · Attach Angle · Boeing 7378H4

Difficulty date
March 14, 2026
Submitted
April 13, 2026
Operation
Air carrier
Aircraft
N8529Z
Make and model
Boeing 7378H4
Aircraft serial
36974
Aircraft time
29,651 hours, 14,873 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

RH SIDE 663 VAPOR BARRIER ATTACH ANGLE AT APPROXIMATELY RBL 34 HAS CRACK. SEE IMAGE.<[01] CUT AND REMOVED CRACKED ANGLE FROM APPROX RBL32 TO RBL65 IAW SRM 57-10-10-2R-5;[02] VERIFIED CA #1 <BR>CUT AND REMOVED CRACKED ANGLE FROM APPROX RBL32 TO RBL65 IAW SRM 57-10-10-2R-5;[03] PERFORMED A HFEC INSPECTION OF CUTOUT PER 737 NDT MANUAL PART 6 51-00-00 PROC. 23 AND SRM 57-10-10-2R-5; NO DEFECTS NOTED.<BR>PERFORMED AN OPEN HOLE HIGH FREQUENCY EDDY CURRENT (HFEC) INSPECTION OF ALL INITIAL FASTENER HOLES IN THE REPAIR AREA TO MAKE SURE THERE IS NO DAMAGE. REFER TO 737 NDT PART 6; 51-00-00; PROCEDURE 16 AND SRM 57-10-10-2R-5; NO DEFECTS NOTED.[14] R/H VAPOR BARRIER ATTACH ANGLE REPAIRED IAW SRM 57-10-10-2R-5; EA M-24-157-02340 AND EA M-24-157-00244;[15] C/W INSPECTION OF CORRECTIVE ACTION #11;[16] C/W INSPECTION

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