SDR IPXA2026102876017

Service difficulty report · Shear Web · Boeing 75724APF

Difficulty date: September 22, 2026
Submitted: October 29, 2026
Operation: Air carrier
Aircraft: N402UP
Make and model: Boeing 75724APF
Aircraft serial: 23724
Aircraft time: 39,935 hours, 27,207 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Shear Web
Part number: 141N525037
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

MAJOR REPAIR, DURING BUYBACK IN LH NOSE TUNNEL FOUND MAIN CABIN SUBFLOOR WITH EXFOLIATION ON LOWER SKIN BS 333.5, LBL 49. AFTER FURTHER EVALUATION FOUND CORROSION EXFOLIATION.IAW SRM 53-10-51-1A-2. ACCOMPLISHED THE REPAIR PER EO-98935-REQ1 AND EA 757-5310-01-B0845, REV. I/R.

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