Service difficulty report · Floor Panel · Boeing 7377BD

Difficulty date
June 4, 2021
Submitted
July 2, 2021
Operation
Air carrier
Aircraft
N7721E
Make and model
Boeing 7377BD
Aircraft serial
34479
Aircraft time
50,877 hours, 26,372 cycles
Part
Floor Panel
Condition
Corroded
Location
Fwd Cargo
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

A22-32; FWD PIT FLOOR PANEL 120CF; LEFT & RIGHT EDGES OF UPPER SURFACE CORROSION; (SECONDARY STRUCTURE) ; / [01] EVALUATED DAMGE FOUND TO BE OUT OF LIMITS DUE TO AREA BEING OVER 20' IAW SRM 53-00-53-1A-1 FIG 102; [02] VERIFIED STEP 1; [03] VERIFIED MATERIAL TO FABRICATE NEW FLOOR PANEL 120CF AS 2024-T3 .071' ATAG A53456 IAW AMM 25-52-01-201-801; [04] C/W STEP 3; [05] FABRICATED NEW FLOOR PANEL 120CF IAW AMM 25-52-01-201-801; [06] VERIFIED STEP 5<BR>OK TO TREAT/PRIME; [07] TREATED AND PRIMED LOWER SURFACE AOF NEW FLOOR PANEL IAW AMM 51-21-41; 51-21-99; [08] EVALUATED DAMGE FOUND TO BE OUT OF LIMITS DUE TO AREA BEING OVER 20' IAW SRM 53-00-53-1A-1 FIG 102. FABRICATED NEW FLOOR PANEL 120CF IAW AMM 25-52-01-201-801; [09] C/W STEP 8<BR>AUDIT C/W

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