Service difficulty report · Seat Track · Boeing 7377H4

Difficulty date
July 6, 2023
Submitted
August 29, 2023
Operation
Air carrier
Aircraft
N297WN
Make and model
Boeing 7377H4
Aircraft serial
32542
Aircraft time
51,861 hours, 31,224 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

CABIN SEAT TRACK IS CORRODED AT BS 867+11; LBL 45; WL 208<[01] VERIFY SRM 53-00-52-1A-1 IS APPLICABLE FOR ALLOWABLE DAMAGE.;[02] SEAT TRACK TO BE REPLACED ON CUSTOMER CARD NUMBER: TTG8Q00M2L0R. DUE TO CORROSION BEING OUT OF LIMITS.;[03] UPDATED MEASUREMENT TABLE.;[04] CORRECTIVE ACTION 2 AND 3 MADE IN ERROR. CORROSION AT BS 867+11; LBL 45; WL 208 STILL NEEDS TO BE EVALUATED.;[05] REMOVED CORROSION AT BS 67+11 LBL 45 WL 208 PER SRM 51-10-02. MAXIMUM MATERIAL REMOVED FROM CROWN WAS 6'X1'X.015'. MAXIMUM MATERIAL REMOVED FROM WELL WAS 6'X1'X.017'. BOTH WITHIN LIMITS PER SRM 53-00-52-1A-1. DIAL DEPTH GAGE ID:ATS401 DUE:10/2023.;[06] UPDATED MEASUREMENT TABLE.;[07] CORRECTIVE ACTION 5 EDIT: REMOVED CORROSION AT BS 867+11 LBL 45 WL 208 PER SRM 51-10-02. MAXIMUM MATERIAL REMOVED FROM CROWN WAS 6'X1'X.015'. MAXIMUM MATERIAL REMOVED FROM WELL WAS 6'X1'X.017'. BOTH WITHIN LIMITS PER SRM 53-00-52-1A-1. DIAL DEPTH GAGE ID:ATS401 DUE:10/2023.;[08] VERIFIED CORRECTIVE ACTIONS 1 AND 7 AND MEASUREMENT TABLE.;[09] UPDATED STEP 1;[10] VERIFIED COMPLETION OF CORRECTIVE ACTIONS 9 AND MEASUREMENT TABLE.;[11] CARD COMPLETED

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