Service difficulty report · Attach Angle · Boeing 7378H4

Difficulty date
October 28, 2022
Submitted
November 17, 2022
Operation
Air carrier
Aircraft
N8510E
Make and model
Boeing 7378H4
Aircraft serial
36944
Aircraft time
19,961 hours, 9,596 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

L/H BS663 UPPER ATTACH ANGLE IS CRACKED ON VAPOR BARRIER LBL8 WL167.68 / [01] VERIFIED APPLICABILITY OF SRM 57-10-10-2R-5 TO BE CORRECT AND UPDATED MEASUREMENT TABLE;[09] RECIEVED REPAIR PARTS 1EA REPAIR DOUBLER MATERIAL USED 2024T3 CLAD 0.071' LOT# 1452482-1 R.O 889864-SWA AND REPAIR FILLER 1EA MATERIAL USED 2024T3 CLAD 0.063' LOT# 1489987-1 R.O 889865-SWA VERIFIED MATERIAL AND HEAT TREATMENT IAW SRM 57-10-10-2R-5 REP.5.;[10] VERIFIED CORRECTIVE ACTION #9;[11] LOCATED; DRILLED; APPLIED CHEMICAL CONVERSION COATING AND PRIMER ON REPAIR AREA BS 663 LBL 6-22 WL 167 AND REPAIR PARTS IAW SRM 57-10-10-2R-5 REP.5 AND OK TO INSTALL.;[12] VERIFIED CORRECTIVE ACTION ITEM 11. OKAY TO INSTALL REPAIR PARTS GIVEN.;[13] INSTALLED REPAIR PARTS AND FASTENERS AT BS 663 LBL 6-22 WL 167 PERFORMED BONDING TEST ON RIVETS; TEST PASSED TOOL USED ATS312 DUE DATE O7/2023;IAW SRM 57-10-10-2R-5 REP.5 PAR 4M AND SWPM 20-20-00 PAR15. CAP SEAL OF FASTENERS INSIDE FUEL CELL IS DOCUMENTED ON CARD TTG8Q00FRQHT STEP 5;[14] VERIFIED CORRECTIVE ACTION #13;[15] APPLIED SEALING AROUND ON REPAIR AREA; CIC AND REMOVED EWIS PROTECTION BS 663 LBL 6-35 IAW SRM 57-10-10-2R-5 REP.5 AND AMM 20-60-07;[16] VERIFIED CORRECTIVE ACTION ITEM 15.;[17] VERIFIED MEASUREMENT TABLE COMPLETED. VERIFIED REPAIR COMPLETED.

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