Service difficulty report · Floor Panel · Boeing 7378H4

Difficulty date
April 27, 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
140CF
Condition
Corroded
Location
Aft 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

AFT CARGO FLOOR BOARD 140 CF CORRODED ALONG EDGE A225-005 / [01] REMOVED CORROSION IAW SRM 53-00-53-1A-1. ORIGINAL THICKNESS .071' LOSS .020'; REMAINING MATERIAL .051' OUT OF LIMITS IAW SRM 53-00-53-1A-1. AAR TOOL 32351 CAL DUE DATTE 12/10/22.;[02] VERIFIED MATERIAL AS 2024 T3 .071' A-TAG A122583 IAW AMM 25-52-01-201-801.;[03] VERIFIED STEPS 1 AND 2;[04] STARTED FABRICATION OF PANEL IAW AMM 25-52-01201-801.;[05] FINISHED FABRICATION OF NEW PNL 140CF IAW AMM 25-52-01-201-801;[06] VERIFIED STEPS 4 AND 5;[07] OK TO TREAT AND PRIME;[08] TREATED IAW AMM 51-21-41-370-802 AND PRIMED IAW AMM 51-21-73-370-804;[09] JOB COMPLETE; AUDIT C/W

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