SDR SWAA2025082794273

Service difficulty report · Floorbeam · Boeing 7378H4

Difficulty date: July 22, 2025
Submitted: August 27, 2025
Operation: Air carrier
Aircraft: N8616C
Make and model: Boeing 7378H4
Aircraft serial: 36914
Aircraft time: 40,285 hours, 19,311 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
Location: Zone 100
Stage of operation: IN
How discovered: V
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

CORROSION ANGLE ON FLOOR STRUCTURE LOCATED STA500I AND BETWEEN LBL21 TO RBL21 WL156 AT FWD CARGO COMPARTMENT. REPLACED ANGLE FLOOR STRUCTURE LOCATED STA500I AND BETWEEN LBL21 TO RBL21 WL156 AT FWD CARGO COMPARTMENT IAW SRM 51-40-02-0G, AND DWG 143A9481, SHEET 17, REV-.

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