Service difficulty report · Floor Panel · Boeing 7378H4

Difficulty date
December 7, 2021
Submitted
December 22, 2021
Operation
Air carrier
Aircraft
N8673F
Make and model
Boeing 7378H4
Aircraft serial
36937
Aircraft time
20,472 hours, 9,411 cycles
Part
Floor Panel
Condition
Corroded
Location
Fuselage
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

DOT#31-186 AFT PIT FLOOR PANEL 140CF CORRODED ; / [01] EVALUATED FLOOR PANEL 140CF AND FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-1 EXCEEDS THE 20' MAXIMUM FOR CORROSION; [02] VERIFIED CORRECT MATERIAL 2024-T3 .071' CLAD IAW AMM 25-52-01-201-801 A-TAG #A104330; [03] VERIFIED STEPS 1 AND 2; [04] VERIFIED STEPS 1-3; [05] FABRICATED FLOOR PANEL 140CF IAW AMM AND 5-52-01-201-801; [06] VERIFIED STEP 5; [07] VERIFIED STEP 5 AND OK TO TREAT AND PRIME; [08] ALODINED TOP SIDE OF FLOOR PANEL 140CF IAW AMM 51-21-41-370-801; BOTTOM SIDE STILL NEEDS ALODINED AND PRIMED; [09] TREATED AND PRIMED BOTTOM SIDE OF FLOOR PANEL 140CF IAW AMM 21-21-91; 51-21-99; [10] FABRICATED REPLACEMENT FLOOR PANEL 140CF IAW AMM 25-52-01-201-801; [11] ALL WORK C/W<BR>AUDIT C/W

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