Service difficulty report · Floor Support · Boeing 75724APF

Difficulty date
June 24, 2026
Submitted
July 15, 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
146N5444
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 RBL2 HAS EXFOLIATION CORROSION. CUT AND REMOVED DAMAGED PART OF THE CARGO COMPARTMENT FLOOR STRINGER IAW SRM 53-00-53-2R-1 PAR. 4B. FIG. 201 DETAIL XIII AND XV. INSTALLED REPAIR CHANNEL ON FLOOR STRINGER AND STRINGER BTW BS 1500-1640 RBL2 IAW SRM 53-00-53-2R-1 PAR.4L,M,N AND O.

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