# SDR SWAA2023051825819

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2023
- Submitted: May 18, 2023
- Operation: Air carrier
- Aircraft: [N958WN](https://openairdocs.org/aircraft/N958WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36673
- Aircraft time: 38,993 hours, 23,664 cycles
- System (JASC): [5322 · Fuselage Internal Mounting Structure](https://openairdocs.org/jasc/5322)
- Part: Seat Track
- Condition: Corroded
- Location: Zn 200 Fus Top
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2023051825819

## Discrepancy

CORROSION ON PASSENGER CABIN SEAT TRACK RBL45 BS727C+16; 766;787+10; 807; 827; 827+14; 847+11; 867+3 WL208.< OUT OF LIMITS PER SRM 53-00-52-1A-1. FIGURE 103; PG.11. SEAT TRACK TO BE REPLACED.;[02] VERIFIED CORRECTIVE ACTION 1<BR>VERIFIED MEASUREMENTS TABLE.;[03] REMOVED FASTENER FROM PASSENGER CABIN SEAT TRACK LOCATED AT B.S. 727B - B.S. 887; RBL 45 PER SRM 51-40-02-0G-0;[04] LOCATED AND DRILLED NEW SEAT TRACK FROM RBL 45 PART# ATSHFAB-100-316 LOT# 545484 PER B737-700 DWG 146A5300 REV B. OK TO INSTALL NEW SEAT TRACK.;[05] VERIFIED CORRECTION ACTION ITEM 4; OK TO INSTALL GIVEN.;[06] NEW PART MARKED PER ATS QCM 4.35.26.<BR>INSTALLED PASSENGER CABIN SEAT TRACK RBL45; FROM BS727B - BS887; WL208 IAW SRM 51-40-02-0G-0 AND BOEING DWG 146A5300.<BR>LOCATED AND DRILLED CABIN FLOOR BOARD HOLES COMMON TO SEAT TRACK RBL45 BS727B - BS887 PER SRM 51-40-05-0G-0.;[07] CERTIFIED CORRECTIVE ACTION 6;[08] VERIFIED CORRECTIVE ACTIONS STEP 6.

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