Service difficulty report · Seat Track · Boeing 75724APF

Difficulty date
January 11, 2025
Submitted
February 4, 2025
Operation
Air carrier
Aircraft
N420UP
Make and model
Boeing 75724APF
Aircraft serial
23907
Aircraft time
36,193 hours, 23,618 cycles
Part
Seat Track
Part number
143N5278
Condition
Corroded
Location
Zone 200
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

SEAT TRACK AT STA 520 LBL 24.75 HAS CORROSION. DOT 142-319. CLEANED AREA IAW SRM 51-10-02. ORIGINAL MATERIAL THICKNESS OF SEAT TRACK CROWN IS, 0.130". A MATERIAL LOSS OF 0.006" WAS NOTED USING ULTRA SONIC, T93968. MAX LOSS ALLOWED IS 0.020". REMAINING THICKNESS IS 0.124". FOUND TO BE IN LIMITS IAW SRM 53-00-52-1A-1.

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