Service difficulty report · Skin · Boeing 75724APF

Difficulty date
September 7, 2026
Submitted
October 2, 2026
Operation
Air carrier
Aircraft
N444UP
Make and model
Boeing 75724APF
Aircraft serial
27389
Aircraft time
32,663 hours, 21,127 cycles
Part
Skin
Part number
311N504652
Condition
Corroded
Location
Zone 400
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*** FAULT-400-STR- #2 ENGINE NACELLE PYLON STRUT, OUTBD INNER SKIN, FWD OF THE VENT PANEL OPENING HAS CORROSION AT SEAM OF FRAME, MAY BE UNDER THE PREVIOUS REPAIR. DOT 8-002. REMOVED EXISTING REPAIR DOUBLER AND REPAIR FILLER IN STR- #2 ENGINE NACELLE PYLON STRUT, OUTBD INNER SKIN, FWD OF THE VENT PANEL OPENING AT SEAM OF FRAME IAW B757-200 SRM 51-40-02-0G. ACCOMPLISH REPAIR PER EO-98674-REQ1 AND STE-PNA EA 757-5450-27-A4631, REV. -.

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