Service difficulty report · Seat Track · Boeing 7377H4

Difficulty date
June 15, 2021
Submitted
July 16, 2021
Operation
Air carrier
Aircraft
N489WN
Make and model
Boeing 7377H4
Aircraft serial
33855
Aircraft time
54,253 hours, 32,244 cycles
Part
Seat Track
Condition
Corroded
Location
Fuselage
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

CORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN BS 540-620 LBL 25 WL 208. ; / [01] REMOVED CORROSION ON TOP AND IN WELL OF SEAT TRACK CROWN STA 540-620; LBL 25; WL 208. MAX MATERIAL REMOVED ON TOP WAS .025' .5 BY 1'; .018' 1' BY 1' IN WELL. OUT OF LIMITS PER SRM 53-00-52-1A-1; SRM 51-10-02-0G-0. MEASURED DEPTH WITH DIAL DEPTH GAUGE ID# ATS400 S/N UNKNOWN; EXPIRES 04/2022; [02] VERIFIED CORROSION REMOVED AND OUT OF LIMITS PER SRM 53-00-52-1A-1; [03] REMOVED OUT OF LIMIT SEAT TRACK AT BS540-BS727B LBL25 WL208 IAW SRM 51-40-02-0G-0; [04] OK TO INSTALL NEW SEAT TRACK AT BS540-BS727B LBL25 WL208; [05] VERIFIED OK TO INSTALL NEW SEAT TRACK; [06] INSTALLED NEW SEAT TRACK FROM BS540-BS727B LBL25 WL208 IAW SRM 51-40-02-0G-0 DWG 144A5300; [07] VERIFIED INSTALLATION OF TRACK AT LBL 25 BS 540-727B; [08] JOB COMPLETE

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