Service difficulty report · Seat Track · Boeing 7377H4

Difficulty date
June 14, 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 CABIN SEAT TRACK; ON CROWN AND IN WELL; BS 445-460; RBL 25; WL 208 ; / [01] REMOVED CORROSION ON CABIN SEAT TRACK ON CROWN AND IN WELL; STA 445-460; RBL 25; WL 208. MAX MATERIAL REMOVED WAS .026' .5' BY 1' ON TOP; .008' 1' BY 1'IN WELL. OUT OF LIMITS PER SRM 53-00-52-1A-1; SRM 51-10-02-0G-0.; [02] VERIFIED REMOVED CORROSION ON CABIN SEAT TRACK ON CROWN AND IN WELL; STA 445-460; RBL 25; WL 208. MAX MATERIAL REMOVED WAS .026' .5' BY 1' ON TOP; .008' 1' BY 1'IN WELL. OUT OF LIMITS PER SRM 53-00-52-1A-1; SRM 51-10-02-0G-0.; [03] CHANGED CORR LEVEL TO LEVEL 2; [04] CORRECTED DIMENSIONS IN CHECK BOXES; [05] CORRECTED DIMENSIONS IN CHECK BOXES; [06] MEASURED DEPTH WITH DIAL DEPTH GAUGE ID# ATS1225; S/N UNKNOWN; EXPIRES 04/2022; [07] VERIFIED MEASURED DEPTH WITH DIAL DEPTH GAUGE ID# ATS1225; S/N UNKNOWN; EXPIRES 04/2022; [08] REMOVED DAMAGED SEAT TRACK STA 370-480; RBL 25; WL 208 PER SRM 51-40-02-0G-0.; [16] REMOVED AND REPLACED SEAT TRACK BS 370-480; RBL 25; WL 208 PER SRM 51-40-02-0G-0; BOEING DWG # 143A5300; [17] SEAT TRACK REPLACEMENT COMPLETE

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