Service difficulty report · Angle · Boeing 73776N

Difficulty date
January 23, 2023
Submitted
March 6, 2023
Operation
Air carrier
Aircraft
N7885A
Make and model
Boeing 73776N
Aircraft serial
33379
Aircraft time
62,518 hours, 31,343 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

B.S. 663 VAPOR BARRIER UPPER ATTACH ANGLE IS CRACKED AT L.B.L. 8 W.L. 160.<[01] VERIFIED APLICABILITY BY SRM 57-10-10-2R-5 REPAIR 5;[02] TRIMED OUT UPPER ATTACH ANGLE AT VAPOR BARRIER BS 663 WL 160 LBL 15 PER SRM 57-10-10-2R-5 REPAIR 5;[03] PERFORM AN OPEN HOLE INSPECTION HFEC NO DAMAGED NOTED PER SRM 57-10-10-2R-5;[04] VERIFIED CORRECTIVE ACTION ITEMS 1 AND 2.<BR>CONCUR WITH APPLICABILITY OF SRM 57-10-10-2R-5 REPAIR 5.;[05] ACCOMPLISHED HFEC INSPECTION OF OPEN FASTENER HOLES IN REPAIR AREA NO CRACK NOTED IAW 737 NDTM PART 6; 51-00-00 PROCEDURE 16 TOOL# ATS1465 CAL. DUE 09/2023.;[06] PERFORM A DETAILED INSPECTION OF THE REPAIR AREA AND THE UNDERLYING STRUCTURE TO MAKE SURE THAT THERE IS NO DAMAGE WITHIN THE REPAIR AREA;[07] VERIFIED CORRECTIVE ACTION 6 . NO DAMAGE NOTED WITHIN THE REPAIR AREA.;[08] LOCATED AND DRILLED -1 REPLACEMENT ANGLE MADE FROM P/N:ATSHFAB-101-354; JOB# 552505; -2 SPLICE ANGLE MADE FROM P/N:ATSHFAB-101-355; JOB# 553592; PER SRM 57-10-10-2R-5 PARAGRAPH 4.E.<BR>APPLIED CHEMICAL CONVERSION AND PRIMED TRIM EDGES AND BARE METAL AREAS PER SRM 57-10-10-2R-5 PARAGRAPH 4. F-G. OK TO INSTALL REPAIR PARTS.;[14] INSTALLED REPAIR PARTS PER SRM 57-10-10-2R-5 REPAIR 5. OK TO CAP SEAL;[

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