Service difficulty report · Floor Panel · Boeing 7378H4

Difficulty date
January 4, 2022
Submitted
January 31, 2022
Operation
Air carrier
Aircraft
N8623F
Make and model
Boeing 7378H4
Aircraft serial
36731
Aircraft time
27,330 hours, 12,353 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

A125-20 - AFT CARGO BAY - FLOOR PANEL - 140BF - PERIMETER CORRODED ; / [01] MEASURED TOTAL ACCUMULATED LENGTH OF CORROSION DAMAGE TO BE = 27 ' LIMIT = 20'. PANEL 140BF IS OUT OF LIMITS IAW SRM 53-00-53-1A-1 FIG 102; [02] VERIFIED MATERIAL FOR NEW FLOOR PANEL TO BE MPN: 2024-T3-071 ATAG: A106982 IAW AMM 25-52-01-201-801 TABLE 1C1; [03] VERIFIED STEPS 1& 2; [04] FABRICATED NEW FLOOR PANEL IAW AMM 25-52-01-201 AND SRM 51-40-05; [05] VERIFIED STEP 4<BR>OK TO TREAT/PRIME; [06] TREATED AND PRIMED LOWER SIDE OF NEW FLOOR PANEL IAW AMM 51-21-41-370-803 AND AMM 51-21-72-370-804; [07] MEASURED TOTAL ACCUMULATED LENGTH OF CORROSION DAMAGE TO BE = 27 ' LIMIT = 20'. PANEL 140BF IS OUT OF LIMITS IAW SRM 53-00-53-1A-1 FIG 102. FABRICATED NEW FLOOR PANEL IAW AMM 25-52-01-201 AND SRM 51-40-05. TREATED AND PRIMED LOWER SIDE OF NEW FLOOR PANEL IAW AMM 51-21-41-370-803 AND AMM 51-21-72-370-804; [08] VERIFIED STEPS 6&7<BR>AUDIT CW

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