Service difficulty report · Seat Track · Boeing 7377BD

Difficulty date
November 21, 2025
Submitted
December 29, 2025
Operation
Air carrier
Aircraft
N7743B
Make and model
Boeing 7377BD
Aircraft serial
36718
Aircraft time
55,721 hours, 29,446 cycles
Part
Seat Track
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

CORROSION ON TOP OF PAX CABIN SEAT TRACK BS 480 TO BS 520 LBL 25 WL 208. REMOVED CORROSION ON SEAT TRACK IAW SRM 51-10-02. MAXIMUM MATERIAL REMOVED WAS 0.25'X 5' X 1' AT BS 520, LBL 25, WL 208. MAXIMUM MAETRIAL ALLOWED TO BE REMOVED IS .020'. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-52-1A-1. REMOVED CORROSION ON TOP OF PAX CABIN SEAT TRACK AT BS 520, LBL 25, WL 208 IAW SRM 51-10-02. MAXIMUM MATERIAL REMOVED WAS 0.25'X 5' X 1'. MAXIMUM MATERIAL ALLOWED TO BE REMOVED IS .020'. & REMOVED CORROSION ON TOP OF PAX CABIN SEAT TRACK AT BS 514 LBL 25 WL 208 PER SRM 51-10-02. LOCATED AND DRILLED NEW FABRICATED SEAT TRACK IAW SRM 51-40-05-0G-0; DWG 143A5310 SHEET 110 REV - AND DWG 143A5300 SHEET 67 REV - DATE: 07/23/07 AND EA 25-153-03311. APPLIED ONE COAT OF F-14.963 ALUMINIZED EPOXY PRIMER TO THE ENTIRE SEAT TRACK PER PRODUCTION DRAWING REQUIREMENTS. (REF. FINISH CODE F-14.963).<BR>COMPLETED INSTALLATION OF PASSENGER CABIN SEAT TRACK AT BS 480-520 LBL 25 WL 208 PER SRM 51-40-02 AND BOEING DWG 143A5300 SHEET REV: - AND EA 25-153-03311<BR>SEAT TRACK REPLACEMENT COMPLETE.

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