Service difficulty report · Floorbeam · Boeing 74745EF

Difficulty date
July 29, 2026
Submitted
July 30, 2026
Operation
Air carrier
Aircraft
N485MC
Make and model
Boeing 74745EF
Aircraft serial
30607
Aircraft time
113,499 hours, 20,012 cycles
Part
Floorbeam
Condition
Corroded
Location
Zone 200
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

M/D BS 1180 LHS O/B BELOW FLOOR INTERCOSTAL WEB FOUND CRACK(<P>INTERCOSTAL WEB REPAIRED AS PER RI-53-40-18379 REV A. NO FURTHER DEFECTS NOTED</P>)

More about the Boeing 747-45EF