Service difficulty report · Seat Track · Boeing 7377H4

Difficulty date
August 10, 2023
Submitted
September 12, 2023
Operation
Air carrier
Aircraft
N912WN
Make and model
Boeing 7377H4
Aircraft serial
36621
Aircraft time
50,939 hours, 30,749 cycles
Part
Seat Track
Part number
UNKNOWN
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

R/H CABIN SEAT TRACK HAS CORROSION ON TOP OF CROWN AND WELL; BS 380+6; 380+14; 400+12; 440+4; RBL 45; WL 208<[01] PARTIALLY COMPLETED STEP 1;[02] PARTIALLY COMPLETED STEPS 1 AND 2;[03] PARTIALLY COMPLETED STEPS STEP 5.<BR>UPDATES MEASUREMENTS TABLE;[04] UPDATED MEASUREMENTS TABLE;[05] N/A STEPS 6 AND 7;[06] VERIFIED STEPS 1-5.;[07] PARTIAL STEP 8.;[08] COMPLETED STEP 8.;[09] REMOVED DAMAGE ON RH CABIN SEAT TRACK ON TOP OF CROWN AND WELL AT BS 380+6; 380+14; 400+12; 440+4; RBL 45; WL 208. DIMENSIONS OF LARGEST DAMAGE REMOVAL AREA FOUND TO BE AT BS 440+4 4' X 1' WITH A MAX DEPTH OF 0.026' ON CROWN. DAMAGE FOUND TO BE OUT OF LIMITS PER SRM 53-00-52-1A-1. REMOVED AND REPLACED RH CABIN SEAT TRACK BS 360+9 TO 480; RBL 45; WL 208 PER SRM 51-40-02-0G-0; SRM 51-40-05-0G-0; SRM 51-40-08-0G-0; AND BOEING DWG 143A5300.;[10] STEP 9 COMPLETE; AND VERIFIED MEASUREMENT TABLE COMPLETE.

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