Service difficulty report · Skin · Boeing 75724APF

Difficulty date
January 4, 2024
Submitted
February 9, 2024
Operation
Air carrier
Aircraft
N457UP
Make and model
Boeing 75724APF
Aircraft serial
25478
Aircraft time
36,360 hours, 21,665 cycles
Part
Skin
Part number
UNKNOWN
Part serial
NA
Condition
Corroded
Location
Nr 1 Nacelle
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

NR 1 PYLON INBD SKIN, INNER SKIN FWD OF PANEL#433HR OPENING HAS CORROSION. DOT 8-007. REMOVED DAMAGE, IAW SRM 51-10-02, MATERIAL REMOVED 0.004, ORIGINAL MATERIAL 0.057, REMAINING MATERIAL 0.053, FOUND TO BE WITHIN LIMITS, IAW SRM 54-50-01-1A, AS MEASURED USING ULTRASONIC THICKNESS GAGE T89336. TREATED AND APPLIED PRIMER, IAW SRM 51-20-01.

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