SDR IPXA2026042295134

Service difficulty report · Floorbeam · Boeing 75724APF

Difficulty date: April 14, 2026
Submitted: April 22, 2026
Operation: Air carrier
Aircraft: N421UP
Make and model: Boeing 75724APF
Aircraft serial: 25281
Aircraft time: 35,922 hours, 23,455 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Cracked
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

MDC FLOOR STRUCTURE STA 1200 BETWEEN BL 0 TO LBL 24 FLOORBEAM WITH EVIDENCE OF CRACK. REMOVAL OF DAMAGE ON MAIN CARGO DECK FLOOR BEAM UPPER CHORD. ORIGINAL THICKNESS: 0.220" DEPTH OF CLEANUP 0.005", REMAINING THICKNESS: 0.215" FOUND TO BE WITHIN LIMITS IAW SRM 53-00-51-1A-1, DETAIL III, FIGURE 101.

More about the Boeing 757-24APF