Service difficulty report · Shield · Boeing 7378H4

Difficulty date
October 10, 2022
Submitted
October 31, 2022
Operation
Air carrier
Aircraft
N8507C
Make and model
Boeing 7378H4
Aircraft serial
41531
Aircraft time
20,008 hours, 9,579 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

AFT CARGO BAY SHIELD FWD OF THE DOOR HAS CORROSION AT NUT PLATE HOLE BS767+4 RBL22 WL156 / [01] UPDATED MEASUREMENT TABLE FOR PICTURE OF CORROSION ATTACHED;[02] CORROSION ON SHIELD WAS FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ARE GIVEN IN THE SRM.;[03] AMT INCORRECTLY UPDATED CORRECTION ACTION STEP 2 STATEMENT IS VOID.;[04] CORRECTIVE ACTION STEP 2 IS VOID;[05] UPDATED MEASUREMENT TABLE. CORROSION ON SHIELD WAS FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ARE GIVEN IN THE SRM.;[06] VERIFIED CORRECTIVE ACTIONS 1 AND 5<BR><BR>VERIFIED MEASUREMENTS TABLE<BR><BR>VERIFIED PICTURE OF CORROSION IS ATTACHED TO THE FAULT;[07] REMOVED AFT CARGO BAY FWD SHIELD AT BS 767 TO BS 792 PER SRM 51-40-02-0G-0;[08] LOCATED AND DRILLED NEW AFT CARGO BAY FWD SHIELD BS 767 TO BS 792 PER SRM 51-40-02-0G-0 AND DWG 146A0081. OK TO INSTALL SHIELD;[09] VERIFIED CORRECTIVE ACTION 8.<BR>OK TO INSTALL;[10] INSTALLED AFT CARGO BAY FWD SHIELD AT BS 767 TO BS 792 PER SRM 51-40-02-0G-0; SRM 51-40-05-0G-0; AND DWG 146A0081;[11] VERIFIED CORRECTIVE ACTION STEP 10.;[12] VERIFIED MEASUREMENT TABLE AND TASK CARD COMPLETE.

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