Service difficulty report · Angle · Boeing 7378H4

Difficulty date
January 3, 2023
Submitted
February 6, 2023
Operation
Air carrier
Aircraft
N8519R
Make and model
Boeing 7378H4
Aircraft serial
36910
Aircraft time
20,262 hours, 9,764 cycles
Part
Angle
Part number
NOTREPORTED
Part serial
NOTREPORTED
Condition
Cracked
Location
Zn 100
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

L/H BS663 UPPER ATTACH ANGLE IS CRACKED ON VAPOR BARRIER LBL8 WL167.68<[01] VALIDATED APPLICABILITY OF SRM 57-10-10-2R-5;[02] INSTALLED EWIS PROTECTION ON FWD AND AFT SIDE OF VAPOR BARRIER BS663 UPPER ATTACH ANGLE LBL8-LBL20 WL167.68 IAW AMM 20-60-07-913-801.;[03] REMOVED DAMAGED SECTION OF L/H BS663 UPPER ATTACH ANGLE LBL8-LBL20 WL167.68 IAW SRM 57-10-10-2R-5.[06] RECEIVED REPAIR PARTS FOR BS663 VAPOR BARRIER UPPER ATTACH ANGLE LBL8-LBL20 WL167.68: SPLICE ANGLE RO#899481-SWA-3 REPLACEMENT ANGLE RO#899481-SWA-1.;[07] ACCOMPLISHED HFEC INSPECTION OF OPEN HOLES IN REPAIR AREA IAW NDTM D6-37239 PART 6 51-00-00 PROC 16; NO CRACKS FOUND. TOOL I.D. IS00450 500D<BR><BR>ACCOMPLISHED DVI OF REPAIR AREA AND UNDERLYING STRUCTURE; NO DAMAGE FOUND;[08] VERIFIED CORRECTIVE ACTION 1-3 AND 5. NO ADDITIONAL DAMAGE NOTED.;[09] LOCATED; DRILLED; TRIMMED; DEBURRED; AND APPLIED CHEMICAL CONVERSION COATING TO REPAIR PARTS @ BS663 UPPER ATTACH ANGLE LBL8-LBL20 WL 167.68 IAW SRM 57-10-10-2R-5.;[10] PRIMERED REPAIR PARTS @ BS663 UPPER ATTACH ANGLE LBL8-LBL20 WL 167.68 IAW SRM 57-10-10-2R-5. OK TO INSTALL.;[11] VERIFIED CORRECTIVE CTION 9; 10 AND THE MEASUREMENT TABLE.;[12] INSTALLED L/H BS663 UPPER ATTACH ANGLE REPAIR ON VAPOR BARRIER LBL8-LBL20 WL 167.68 IAW SRM 57-10-10-2R-5. BOND CHECK GOOD.

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