Service difficulty report · Floor Panel · Boeing 7378H4

Difficulty date
January 29, 2022
Submitted
March 1, 2022
Operation
Air carrier
Aircraft
N8678E
Make and model
Boeing 7378H4
Aircraft serial
36735
Aircraft time
20,630 hours, 9,513 cycles
Part
Floor Panel
Part number
120CF
Condition
Corroded
Location
Fwd Cargo Bay
Stage of operation
UK
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

FORWARD CARGO COMPARTMENT FLOOR PANEL 120CF HAS CORROSION AT EDGES DOT 18 / [01] EVALUATED CORROSION ON PNL EDGES; TOTAL ACCUMULATED CORROSION DAMAGE LENGTH FOUND TO BE MORE THAN THE 20' MAX ALLOWED; OUT OF LIMITS IAW SRM 53-00-53-1A-1;[02] VERIFIED MATERIAL FOR NEW PNL FABRICATION; 2024-T3 .071'; IAW AMM 25-52-01-201-801<BR>ATAG A107375;[03] VERIFIED STEPS 1 AND 2 ARE COMPLETE;[04] VERIFIED ITEM 1 AND 2;[05] FABRICATED NEW PNL 120CF IAW AMM 25-52-01-201-801;[06] VERIFIED STEP 5 IS COMPLETE;[07] VERIFIED STEPS 5 AND 6;[08] OK TO TREAT AND PRIME;[09] OK TO TREAT AND PRIME;[10] TREATED IAW AMM 51-21-41-370-801 AND PRIMED IAW AMM 51-21-72-370-804;[11] VERIFIED STEP 10 C/W;[12] VERIFIED STEPS 10 & 11;[13] ADD TO STEP 12 AUDIT C/W

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