Service difficulty report · Seat Track · Boeing 7377H4

Difficulty date
March 7, 2023
Submitted
April 12, 2023
Operation
Air carrier
Aircraft
N956WN
Make and model
Boeing 7377H4
Aircraft serial
36672
Aircraft time
38,869 hours, 23,696 cycles
Part
Seat Track
Condition
Corroded
Location
Zn 200 Fus Top
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 HAS CORROSION RBL 45.5 BS 400+11; BS 440+2; BS 460+14.<[01] VERIFIED APPLICABILITY PER SRM 53-00-52-1A-1. REMOVED CORROSION FROM SEAT TRACK AT BS460+14 RBL45.5 L:5' W:.90' D:.042' FOUND SEAT TRACK TO BE OUT OF LIMITS PER SRM 53-00-52-1A-1.TOOL ID: ATS2677 S/N: UNKNOWN DUE DATE: 11/2023. ATS1738 S/: UNKNOWN DUE DATE: 10/2023.;[02] CERTIFIED CORRECTIVE ACTION 1;[03] VERIFIED CORRECTIVE ACTION 1 AND MEASUREMENT TABLE.;[04] REMOVED PASSENGER CABIN SEAT TRACK RBL45.5 BS370-480 PER SRM 51-40-02-0G-0.;[05] LOCATED AND DRILLED NEW SEAT TRACK P/N 143A5310-52ATSMRO; LOT# 1521806-1; PO#/ LINE 911111/ 1 PER SRM 51-40-02-0G-0 AND DWG 143A5300 & 141A5300. REQUEST OK TO INSTALL.;[06] INSPECTED AND VERIFIED CORRECTIVE ACTION 5. OKAY TO INSTALL SEAT TRACK.;[07] INSTALLED SEAT TRACK AT BS 380-480 RBL 45.5 WL 208 PER SRM 51-40-02-0G-0 ; DRAWING #143A5300 SHT 43 REV- AND 141A5300 SHT 27 REV-;[08] APPLIED CIC BS 380-480 RBL 25-RBL 60 WL 208 PER MM 51-00-59-201;[09] UPDATED PARTS. JOB COMPLETE;[10] INSPECTED AND VERIFIED CORRECTIVE ACTIONS 7; 8 AND 9. JOB COMPLETE.;[11] JOB COMPLETE.

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