Service difficulty report · Shield · Boeing 7378

Difficulty date
June 2, 2023
Submitted
June 27, 2023
Operation
Air carrier
Aircraft
N8705Q
Make and model
Boeing 7378
Aircraft serial
42558
Aircraft time
12,340 hours, 5,351 cycles
Part
Shield
Part number
UNKNOWN
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

A-221-11 AFT CARGO COMPARTMENT R/H/S AFT FLOOR SHIELD BETWEEN STA 867 AND 847 TOP SKIN IS CORRODED AS MARKED<[01] REMOVED CORROSION ; VERIFIED MATERIAL LOSS ORIGINAL THICKNESS .050' LOSS .008'; REMAINING .042' OUT OF LIMITS IAW SRM 53-60-15-1A-1. <BR>TOOL # AAR-21461 CAL DUE 10/19/23.;[02] VERIFIED STEP 1;[03] REMOVED SHIELD IAW SRM 51-40-02-0G-0;[04] VERIFIED ACTION ITEM 3;[05] VERIFIED RECEIVED NEW SHIELD P/N 146A8127Y10 ATAG WN31625 IAW BOEING DWG 146A0081 REV A;[06] VERIFIED ITEM 5;[07] LOCATED AND DRILLED NEW SHIELD IAW BOEING DWG 146A0081 REV A;[08] VERIFIED ITEM 7<BR>OK TO INSTALL SHIELD;[09] INSTALLED NEW SHIELD IAW BOEING DWG 146A0081 REV A SRM 51-40-02-0G-0;[10] VERIFIED ITEM 9<BR>OK TO CIC;[11] APPLIED CIC ON NEW SHIELD IAW AMM 51-21-91-620-802;[12] VERIFIED ITEM 11;[13] AUDIT C/W

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