Service difficulty report · Shield · Boeing 7378H4

Difficulty date
March 27, 2023
Submitted
April 25, 2023
Operation
Air carrier
Aircraft
N8529Z
Make and model
Boeing 7378H4
Aircraft serial
36974
Aircraft time
19,992 hours, 9,666 cycles
Part
Shield
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 SHIELD FWD OF CARGO DOOR AROUND MULTIPLE NUT PLATE HOLES BS767 TO BS794 RBL22 WL156<[01] CORROSION ON SHIELD WAS FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ARE GIVEN IN THE SRM.;[02] VERIFIED CORRECTIVE ACTION 1 AND MEASUREMENT TABLE;[03] REMOVED DAMAGED AFT CARGO BAY SHIELD FWD OF CARGO DOOR; LOCATED AND DRILLED NEW AFT CARGO BAY SHIELD FWD OF CARGO DOOR IAW SRM 51-40-05-0G 0 AND DWG 146A0081.;[04] VERIFIED CORRECTIVE ACTION 3;[05] OK TO INSTALL NEW AFT CARGO BAY SHIELD FWD OF CARGO DOOR BS767 TO BS794 RBL22 WL156.;[06] VERIFIED CORRECTIVE ACTION 5.;[07] INSTALLED NEW AFT CARGO BAY SHIELD FWD OF CARGO DOOR BS767 TO BS794 RBL22 WL156 IAW SRM 51-40-02 AND DWG #146A0081.;[08] VERIFIED CORRECTIVE ACTION 7

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