SDR IPXA2026080806744

Service difficulty report · Floor Support · Boeing 75724APF

Difficulty date: July 22, 2026
Submitted: August 12, 2026
Operation: Air carrier
Aircraft: N455UP
Make and model: Boeing 75724APF
Aircraft serial: 25476
Aircraft time: 46,102 hours, 22,631 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Part number: 146N544714146N54
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 COMPARTMENT FLOOR STRINGER HAS CORROSION ON MULTIPLE AREAS APPROX BTW BS 1440 AND BS 1520, RBL 7.55. INSTALLED THE CHANNEL -7 IN AFT CARGO BAY FLOOR SUPPPORT BTW BS 1460 - 1480, RBL 7.55, IAW SRM 53-00-53-2R-1, REPAIR 1, FIGURE 201, SHEET 7, PARAGRAPH 4. M, N, O.

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