Service difficulty report · Shield · Boeing 7378H4

Difficulty date
October 13, 2022
Submitted
November 3, 2022
Operation
Air carrier
Aircraft
N8509U
Make and model
Boeing 7378H4
Aircraft serial
36925
Aircraft time
20,183 hours, 9,620 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

FWD CARGO BAY SHIELD AFT OF DOOR HAS CORROSION AROUND NUT PLATE HOLE BS500+6 RBL23.5 WL156 / [01] UPDATED MEASUREMENT ABLE AND ATTACHED PHOTO;[02] CORROSION ON SHIELD WAS FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ARE GIVEN IN THE SRM.;[03] VERIFIED CORRECTIVE ACTION 2.;[04] REMOVED DAMAGED FCB SHEILD AFT OF DOOR BS500-500A RBL23.5 WL 156 IAW SRM 51-40-02.;[05] LOCATED AND DRILLED NEW FCB AFT SHIELD; 495-500A; RBL23.5; IAW SRM 51-40-02-0G-0; SRM 51-40-05-0G-0. AND OK TO INSTALL.;[06] VERIFIED CORRECTIVE ACTION #5 AND MEASUREMENT FIELD;[07] INSTALLED FCB AFT SHIELD; BS495-500A RBL 23.5; IAW SRM 51-40-02-0G-0; DWG 143A0080.;[08] VERIFIED CORRECTIVE ACTION #7;[09] VERIFIED CORRECTIVE ACTION #7

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