Service difficulty report · Attach Angle · Boeing 7378H4

Difficulty date
May 15, 2022
Submitted
June 15, 2022
Operation
Air carrier
Aircraft
N8630B
Make and model
Boeing 7378H4
Aircraft serial
42521
Aircraft time
27,694 hours, 12,732 cycles
Part
Attach Angle
Condition
Cracked
Location
Center Wing
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 CRACKED ON VAPOR BARRIER RBL8 WL167.68 / [01] VALIDATED APPLICABILITY OF SRM 57-10-10-2R-5 AND UPDATED MEASUREMENT TABLE;[02] REMOVED DAMAGED SECTION OF RH BS663 UPPER ATTACH ANGLE RBL8-RBL20 WL167.68 IAW SRM 57-10-10-2R-5.;[03] PERFORM DETAILED INSPECTION OF THE REPAIR AREA AND THE UNDERLYING STRUCTURE TO MAKE SURE THAT THERE IS NO DAMAGE WITHIN THE REPAIR AREA.;[04] INSTALLED EWIS PROTECTION @ RH BS663 UPPER ATTACH ANGLE RBL8-RBL20 ON FWD & AFT SIDE OF VAPOR BARRIER IAW AMM 20-60-07-913-801.;[05] VERIFIED CORRECTIVE ACTIONS 1-4.;[06] PERFORM AN OPEN HOLE HIGH FREQUENCY EDDY CURRENT(HFEC) INSPECTION FOR ALL INITIAL FASTENER HOLES IN THE REPAIR AREA TO MAKE SURE THERE IS NO DAMAGE WITHIN REPAIR AREA.;[07] HFEC INSPECTED DENTED AREA IAW 737 NDTM PART 6 51-00-00 PROCEDURE 23.<BR>NO CRACKS NOTED.<BR>EQUIP USED:<BR>-NORTEC 600 ID: ATS1465 CAL DUE: 08/22<BR><BR><BR>HFEC INSPECTED OPEN HOLES IAW 737 NDTM PART 6 51-00-00 PROCEDURE 16. <BR>NO CRACKS NOTED. <BR>EQUIP USED: <BR>-NORTEC 600 ID: ATS1465 CAL DUE: 08/22 <BR>-MINIMITE ID: ATS1411 CAL DUE: 05/22;[08] RECEIVED REPAIR ANGLE RO #868407-SWA; AND SPLICE ANGLE RO #868408-SWA FROM OSS.;[09] VERIFIED CORRECTIVE ACTION 8.;[10] LOCATED; DRILLED; TRIMMED; DEBURRED AND APPLIED CHEMICAL CONVERSION COATING TO REPAIR ANGLE AND REPAIR SPLICE AT BS663 RBL8-RBL20 WL167.68 IAW SRM 57-10-10-2R-5.;14] INSTALLED BS663 UPPER ATTACH ANGLE REPAIR PARTS @ BS663 RBL8-RBL20 WL167.68 IAW SRM 57-10-10-2R-5.

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