Service difficulty report · Floorbeam · Boeing 75724APF

Difficulty date
October 10, 2025
Submitted
November 6, 2025
Operation
Air carrier
Aircraft
N456UP
Make and model
Boeing 75724APF
Aircraft serial
25477
Aircraft time
37,547 hours, 22,355 cycles
Part
Floorbeam
Part number
146N50362
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

MAIN DECK CABIN FLOORBEAM UPPER CHORD HAS CORROSION AT APPROX BS 1600, LBL 45.50 THRU LBL 62.22, ACCOMPLISHED REPAIR PER VT-SAA EA 757-5300-01-B0603, REV IR.

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