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
36,186 hours, 23,613 cycles
Part
Seat Track
Part number
144N5023
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

MAIN CABIN FLOOR STRUCTURE AT STA 1020 TO STA 1040 RBL 45.5 HAS CORROSION AROUND 5 EA. FASTENER HOLES. DOT 142-328. EVALUATED REWORK FIVE PAINTS IN MAIN CABIN FLOOR STRUCTURE AT STA 1020 TO STA 1040 RBL 45.5. MATERIAL THICKNESS 0.090''AFTER REWORK, P1) MATERIAL LOSS 0.004'' MATERIAL REMAINING 0.086'', P2) MATERIAL LOSS 0.006'' MATERIAL REMAINING 0.084'', P3) MATERIAL LOSS 0.007'' MATERIAL REMAINING 0.083''. P4) MATERIAL LOSS 0.003'' MATERIAL REMAINING 0.087'', P5) MATERIAL LOSS 0.003'' MATERIAL REMAINING 0.087', P1, P2, P3, P4 AND P5 WERE FOUND WITHIN LIMITS.IAW SRM 53-00-51-1A-1. OSD: 1/29/2025

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