Service difficulty report · Floor Panel · Boeing 7378H4

Difficulty date
April 28, 2022
Submitted
May 12, 2022
Operation
Air carrier
Aircraft
N8685B
Make and model
Boeing 7378H4
Aircraft serial
36723
Aircraft time
20,280 hours, 9,431 cycles
Part
Floor Panel
Part number
120DF
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 FLOOR PANEL 120 DF HAS CORROSION ALONG EDGE A225-005 / [01] REMOVED CKORROSION IAW SRM 53-00-53-1A-1. ORIGINAL THICKNESSS .071'; LOSS .020' REMAINING MATERIAL .051'; FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-1. AAR TOOL 32351 CAL DUE DATE 12/10/22.;[02] VERIFIED MATERIAL AS 2024 T3 .071' A-TAG A122583 IAW AMM 25-52-01-201-801.;[03] VERIFIED STEP 2;[04] FABRICATED FLOOR PANEL 120DF IAW AMM 25-52-01-201-801.;[05] OK TO TREAT AND PRIME BACK SIDE OF PANEL 120DF;[06] VERIFIED STEPS 4 & 5;[07] TREATED AND PRIMED BACKSIDE OF PANEL IAW AMM 51-21-41 AND AMM 51-21-73. PANEL COMPLETE ALL STEPS 1-7 C/W.;[08] VERIFIED STEP 7<BR>AUDIT C/W

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