Service difficulty report · Shield · Boeing 7378H4

Difficulty date
February 2, 2023
Submitted
March 10, 2023
Operation
Air carrier
Aircraft
N8524Z
Make and model
Boeing 7378H4
Aircraft serial
36970
Aircraft time
20,203 hours, 9,817 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 STEP 1.;[03] REMOVED AFT CARGO BAY SHIELD; FWD OF CARGO DOOR; BS 767-794 RBL22 WL 156 PER SRM 51-40-02-0G-0.;[04] LOCATED; DRILLED; DEBURRED NEW SHIELD PER SRM 51-40-05-0G-0; DWG 146A0081. OK TO INSTALL.;[05] VERIFIED CORRECTIVE ACTION 4 AND MEASUREMENT FIELD; OK TO INSTALL.;[06] INSTALLED AFT CARGO BAY FWD SHIELD BS767-794 RBL22 WL156 PER SRM 51-40-02-0G-0; DWG 146A0081.;[07] VERIFIED CORRECTIVE ACTION 6

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