SDR SWAA2021040232410

Service difficulty report · Floor Panel · Boeing 7378H4

Difficulty date: November 25, 2020
Submitted: April 3, 2021
Operation: Air carrier
Aircraft: N8607M
Make and model: Boeing 7378H4
Aircraft serial: 36634
Aircraft time: 27,943 hours, 12,177 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Panel
Condition: Corroded
Location: Fuselage
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 COMPT. FLOOR PANEL 140AF FWD EDGE HAS CORROSION / AFT CARGO COMPARTMENT FLOOR PANEL 140AF FWD EDGE HAS CORROSION. EVALUATED CORROSION; DETERMINED TO BE OUT OF LIMITS (OVER 20') IAW MAM 25-52-00-200-803 AND SRM 53-00-53-1A-1 FIG 102. VERIFIED NEW MATERIAL FOR REPLACEMENT. P# 2024-T3-071 ATAG# A73956. FABRICATED REPLACEMENT PANEL 140AF IAW AMM 25-52-01-201-801 AND BOEING DWG# 453A2610; TREATED IAW AMM 51-21-41-370-801; PRIMED IAW AMM 51-21-72-370-804.

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