Service difficulty report · Intercostal · Boeing 75724APF

Difficulty date
May 8, 2026
Submitted
May 20, 2026
Operation
Air carrier
Aircraft
N423UP
Make and model
Boeing 75724APF
Aircraft serial
25325
Aircraft time
36,345 hours, 23,701 cycles
Part
Intercostal
Part number
144N818047
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

WTB INTERCOSTAL BTW STA 1037 TO 1060 AND LBL 5 WITH CORROSION AROUND NUTPLATE HOLE(S). INSTALLATION OF NEW INTERCOSTAL AT BTW STA 1037 TO 1060 AND LBL 5 IAW B757-200 SRM 51-40-02. REVIEWED

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