Service difficulty report · Track · Boeing 7377H4

Difficulty date
May 25, 2023
Submitted
July 3, 2023
Operation
Air carrier
Aircraft
N960WN
Make and model
Boeing 7377H4
Aircraft serial
36675
Aircraft time
38,108 hours, 23,248 cycles
Part
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 PASSENGER CABIN SEAT TRACK RBL45 BS727C+16; 727E+8; 787+9 WL208.<[01] VERIFIED APPLCABILITY PER SRM 53-00-52-1A-1. REMOVED CORROSION FROM CABIN SEAT TRACK AT BS727C+16 RBL45 W208 L:3' W:.45' D:.25' ON CROWN; FOUND SEAT TRACK TO BE OUT OF LIMIT PER SRM 53-00-52-1A-1 FIG.103. TOOL ID: ATS1738 DD:10/2023; ATS400 DD:09/2023.;[02] CORRECTION ON ACTION: VERIFIED APPLCABILITY PER SRM 53-00-52-1A-1. REMOVED CORROSION FROM CABIN SEAT TRACK AT BS727C+16 RBL45 W208 L:3' W:.45' D:.025' ON CROWN; FOUND SEAT TRACK TO BE OUT OF LIMIT PER SRM 53-00-52-1A-1 FIG.103. TOOL ID: ATS1738 DD:10/2023; ATS400 DD:09/2023.;[03] INSPECTED AND VERIFIED CORRECTIVE ACTION 2.<BR><BR>VERIFIED MEASUREMENTS TABLE.;[04] REMOVED SEAT TRACK RBL 45 727B-887 IAW SRM 51-40-02;[05] CERTIFY;[06] COMPLETED STEP 1;[07] COMPLETED STEP 2;[08] LOCATED AND DRILLED NEW SEAT TRACK IAW SRM 51-40-05-0G-0; DWG 146A5300.;[09] OK TO INSTALL;[10] VERIFIED CORRECTIVE ACTION 9<BR>OK TO INSTALL GIVEN.;[11] INSTALLED PASSENGER CABIN SEAT TRACK RBL45 W208 BS727B-887 PER SRM 51-40-02-0G-0 AND DWG#146A5300. TOOL ID: ATS1299 DD:12/31/2023.;[12] VERIFIED CORRECTIVE ACTIONS STEP 11.;[13] VERIFIED STEP #8 PRIOR TO INSTALLATION.<BR>TASK COMPLETE

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