Service difficulty report · Seat Track · Boeing 7377H4

Difficulty date
May 1, 2023
Submitted
May 31, 2023
Operation
Air carrier
Aircraft
N285WN
Make and model
Boeing 7377H4
Aircraft serial
32536
Aircraft time
51,630 hours, 31,054 cycles
Part
Seat Track
Part number
UNKNOWN
Condition
Corroded
Location
Zn 100 Fus Lower
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 SEAT TRACK CROWN STA 578-580 ON TOP; 680-682 ON TOP RBL 25; WL 208.<[01] SRM 53-00-52-1A-1 IS APPLICABLE ALLOWABLE DAMAGE; UPDATED TEBLE.;[02] VERIFIED CORRECTIVE ACTION 1.;[03] UPDATED P/N;[04] REMOVED CORROSION ON SEAT TRACK CROWN STA 578-580 ON TOP; 680-682 ON TOP RBL 25; WL 208 PER SRM 51-10-02-0G-0. MAX MATERIAL REMOVED ON TOP WAS .029' .5' BY 2'. OUT OF LIMITS PER SRM 53-00-53-1A-1. MEASURED WITH DIAL DEPTH GAUGE ID# ATS1225; NSN; DUE 8/2023.;[05] REMOVED CORROSION ON SEAT TRACK CROWN STA 578-580 ON TOP; 680-682 ON TOP RBL 25; WL 208 PER SRM 51-10-02-0G-0. MAX MATERIAL REMOVED ON TOP WAS .029' .5' BY 2'. OUT OF LIMITS PER SRM 53-00-52-1A-1. MEASURED WITH DIAL DEPTH GAUGE ID# ATS1225; NSN; DUE 8/2023.;[06] CORRECTED REFERENCE;[07] VERIFIED CORRECTIVE ACTION 4-6 AND MEASUREMENT TABLE;[08] REMOVED DAMAGED SEAT TRACK BS540-BS727 RBL25 PER SRM 51-40-02-0G-0. RECIEVED REPLACMENT SEAT TRACK;[09] CERTIFIED ACTION 8.;[10] VERIFIED CORRECTIVE ACTION 8; OK TO INSTALL NEW SEAT TRACK.;[11] PARTIALLY INSTALLED NEW SEAT TRACK PER DWG 144A5300 SHEET 0001 AND SRM 51-40-02-0G-0;[12] CERTIFIED ACTION 11;[13] COMPLETED INSTALL OF NEW SEAT TRACK PER DWG 144A5300 SRM 51-40-02-0G-0 AND AMM 20-50-11-910-801<BR><BR>CAL ID TORQUE WRENCH<BR>ATS2327<BR>DUE:10/2023;[14] CERTIFIED ACTION 13;[15] VERIFIED CORRECTIVE ACTIONS STEP 13.

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