SDR IPXA2026090403739

Service difficulty report · Doubler · Boeing 75724APF

Difficulty date: July 28, 2026
Submitted: September 11, 2026
Operation: Air carrier
Aircraft: N461UP
Make and model: Boeing 75724APF
Aircraft serial: 28265
Aircraft time: 43,577 hours, 22,026 cycles
System (JASC): 5310 · Fuselage Main, Structure
Part: Doubler
Part number: 141N863181828488
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

RIGHT FUSELAGE, INSIDE TUNNEL OF TORQUE BOX NLG, WASTE PAN CORRODED. INSTALLED -81, -84, & -88 DOUBLERS, 4EA. GUSSETS, 6EA. TEECLIPS, 2EA. INTERCOSTAL CHANNELS, 10EA. CLIPS, 1EA. RING RETAINER, 1EA. DOOR LATCH ASSY, 4EA. SHIMS, 1EA. SERVICE VALVE ASSY & 1EA. WASTE PAN ASSY IAW SRM 51-40-02-0G-0 & SEALED ALL FAYING PARTS IAW DWG: 141N8631 & B757-200PF AMM 51-31-01/201.

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