Service difficulty report · Intercostal · Boeing 75724APF

Difficulty date
June 4, 2022
Submitted
June 8, 2022
Operation
Air carrier
Aircraft
N423UP
Make and model
Boeing 75724APF
Aircraft serial
25325
Aircraft time
32,458 hours, 21,399 cycles
Part
Intercostal
Part number
146N53991
Condition
Corroded
Location
Fr1400-Fr1420
Stage of operation
IN
How discovered
9
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

INSPECTION TYPE:SEG1** SUPPLEMENTAL SDR **AFT LOWER CARGO PIT BETWEEN FRAMES 1400-1420 AND BETWEEN STR 29L AND 30 LOWER BUILDGE INTERCOSTAL IS EXPOLIATED ON LOWER LIP ON TOP OF SKIN.REMOVED CORRODED INTERCOSTAL AND INSTALLED REPLACEMENT INTERCOSTAL PER SRM 51-40-02.

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