Service difficulty report · Shield · Boeing 7378H4

Difficulty date
April 12, 2022
Submitted
May 2, 2022
Operation
Air carrier
Aircraft
N8689C
Make and model
Boeing 7378H4
Aircraft serial
36658
Aircraft time
20,145 hours, 9,375 cycles
Part
Shield
Condition
Corroded
Location
Fwd Cargo Bay
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 THE DOOR HAS AREAS OF CORROSION BS 492 TO BS50A RBL23 WL156 / [01] EVALUATED CORROSION ON SHIELD BS 492 TO 500A RBL 23 WL 156; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0;[02] VERIFIED CORRECTIVE ACTIONS STEP 1.;[03] REMOVED DAMAGED SHIELD; LOCATED AND DRILLED NEW SHIELD AT BS 492 TO 500A RBL 23 WL 156 IAW SRM 51-40-02-0G-0; 51-40-05-0G-0 AND DWG 143A0080.;[04] VERIFIED CORRECTIVE ACTION 3.;[05] OK TO INSTALL;[06] OK TO INSTALL.;[07] INSTALLED FWD CARGO BAY SHIELD BS 492 - BS 500A RBL23 WL 156 IAW SRM 51-40-02 AND DWG 143A0080;[08] INADVERTENTLY UPDATED INSPECTOR BLOCK IN CORRECTIVE ACTION 7. INSTALLED FWD CARGO BAY SHIELD BS 492 - BS 500A RBL23 WL 156 IAW SRM 51-40-02 AND DWG 143A0080;[09] RII INSPECTED ACTION 7;8;[10] INSPECTION COMPLETE

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