Service difficulty report · Attach Angle · Boeing 7378H4

Difficulty date
March 21, 2023
Submitted
April 26, 2023
Operation
Air carrier
Aircraft
N8529Z
Make and model
Boeing 7378H4
Aircraft serial
36974
Aircraft time
19,992 hours, 9,666 cycles
Part
Attach 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

R/H BS663 UPPER ATTACH ANGLE IS CRACKED ON VAPOR BARRIER RBL8 WL167.68<REMOVED DAMAGED SECTION OF RH BS663 VAPOR BARRIER UPPER ATTACH ANGLE RBL8-RBL20 WL167.68 IAW SRM 57-10-10-2R-5.RECEIVED REPAIR PARTS FOR BS663 RH VAPOR BARRIER UPPER ATTACH ANGLE RBL8-RBL20 WL167.68: SPLICE ANGLE RO#911405-SWA REPLACEMENT ANGLE RO#911403-SWA;[10] VERIFIED CORRECTIVE ACTION 9;[11] LOCATED; DRILLED; TRIMMED; DEBURRED; APPLIED CHEMICAL CONVERSION COATING AND PRIMERED REPAIR PARTS @ RH BS663 VAPOR BARRIER UPPER ATTACH ANGLE RBL8-RBL20 WL167.68 IAW SRM 57-10-10-2R-5.;[12] VERIFIED CORRECTIVE ACTION 11;[13] OK TO INSTALL REPAIR PARTS @ RH BS663 VAPOR BARRIER UPPER ATTACH ANGLE RBL8-RBL20 WL167.68.;[14] OK TO INSTALL REPAIR PARTS @ RH BS663 VAPOR BARRIER UPPER ATTACH ANGLE RBL8-RBL20 WL167.68;[15] CAP SEAL INTERNAL SIDE OF REPAIR FASTENERS COMMON TO FUEL TANK AND VAPOR BARRIER UPPER ATTACH ANGLE BS 663 RBL8-RBL20 WL 167.68. WILL BE ACCOMPLISHED ON FAULT TTG8Q00JYQTW; INSTALLED REPAIR PARTS @ RH BS663 VAPOR BARRIER UPPER ATTACH ANGLE RBL8-RBL20 WL167.68 IAW SRM 57-10-10-2R-5. BOND CHECK GOOD. BONDING METER ID: ATS1255 S/N:DCOO3959 DUE:01/2024;] CAP SEALED AND FILLET SEALED EXTERNAL SIDE OF REPAIR @ BS663 VAPOR BARRIER UPPER ATTACH ANGLE RBL8-RBL20 WL167.68 IAW SRM 57-10-10-2R-5.;[21] APPLIED CIC TO EXTERNAL SIDE OF REPAIR @ BS663 VAPOR BARRIER UPPER ATTACH ANGLE RBL8-RBL20 WL167.68 IAW SRM 57-10-10-2R-5.;

More about the Boeing 737-8H4