Service difficulty report · Attach Angle · Boeing 7378H4

Difficulty date
April 17, 2023
Submitted
May 15, 2023
Operation
Air carrier
Aircraft
N8534Z
Make and model
Boeing 7378H4
Aircraft serial
63578
Aircraft time
19,732 hours, 9,539 cycles
Part
Attach Angle
Condition
Corroded
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

CORROSION AFT CARGO BAY ATTACH ANGLE UNDER SHIELD HAS MULTIPLE AREAS UNDER NUT PLATES BS767 TO BS787 RBL21 WL156<[01] CORROSION ON ANGLE WAS FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ARE GIVEN IN THE SRM.;[02] VERIFIED CORRECTIVE ACTION1.;[03] REMOVED DAMAGED AFT CARGO BAY ANGLE UNDER SHIELD BS767 TO BS787 RBL21 WL156 IAW SRM 51-40-02-0G-0;[04] LOCATED AND DRILLED NEW AFT CARGO BAY ANGLE UNDER SHIELD BS767 TO BS787 RBL21 WL156 IAW SRM 51-40-05-0G-0; DWG146A8123 AND DWG 146A0081. OK TO INSTALL;[05] VERIFIED CORRECTIVE ACTION 4 AND THE MEASUREMENT TABLE.;[06] INSTALLED AFT CARGO BAY ANGLE UNDER SHIELD BS767 TO BS787 RBL21 WL156 IAW SRM 51-40-02-0G-0; DWG146A8123 AND DWG 146A0081.;[07] VERIFIED CORRECTION ACTION ITEM 6.;[08] VERIFIED ALL CORRECTION ACTION CARD COMPLETE.

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