Service difficulty report · Floor Support · Boeing 75724APF

Difficulty date
June 24, 2026
Submitted
July 16, 2026
Operation
Air carrier
Aircraft
N453UP
Make and model
Boeing 75724APF
Aircraft serial
25474
Aircraft time
40,247 hours, 23,271 cycles
Part
Floor Support
Part number
148N5444
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

AFT CARGO AREA FLOOR PANEL STRUCTURE BTWN BS 1500-1520, LBL2 HAS EXFOLIATION CORROSION. REMOVED CORROSION ON STRINGER STA 1500-1520 LBL2 IAW SRM 53-00-53-1A-1 DETAIL V. INSTALLED REPAIR CHANNEL ON FLOOR STRINGER AND STRINGER BTW STA 1500 TO 1640. IAW B757-200PF SRM 51-40-02-OG-0.

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