Service difficulty report · Seat Track · Boeing 7377H4

Difficulty date
September 15, 2021
Submitted
September 20, 2021
Operation
Air carrier
Aircraft
N473WN
Make and model
Boeing 7377H4
Aircraft serial
33832
Aircraft time
58,567 hours, 34,627 cycles
Part
Seat Track
Condition
Corroded
Location
Bs 616 Lbl 24
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

PASSENGER CABIN SEAT TRACK LBL 24 STA 616+17' WL 208 HAS CORROSION ON UPPER AND LOWER SURFACE<REMOVED CORROSION AT SEAT TRACK STA 616+17 LBL 24 UPPER AND LOWER SURFACE AND PERFORMED 10X MAGNIFYING GLASS I/A/W SRM 51-10-02-0G-0 VERIFIED MATERIAL LOSS AT STA 616+17 LBL24 ON UPPER SURFACES OF SEAT TRACK LOSS OF .011 MAXIMUM IS .020 IS WITHIN LIMITS IAW SRM 53-00-52-1A-1. VERIFIED MATERIAL LOSS ON SEAT TRACK SEA 616+17 LBL24 LOSS OF .015 MAXIMUM. IS .040 ON BOTTOM OF SEAT TRACK IS WITHIN LIMITS I/A/W SRM 53-00-52-1A-1 AAR TOOL 36307 DUE 06-14-22 VERIFIED STEPS 1. THRU 3. OK TO RESTORE FINISH. TREATED AND PRIMED SEAT TRACK IAW SRM 53-00-52 -1A-1.

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