# SDR SWAA2023041213604

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 7, 2023
- Submitted: April 12, 2023
- Operation: Air carrier
- Aircraft: [N956WN](https://openairdocs.org/aircraft/N956WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36672
- Aircraft time: 38,869 hours, 23,696 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/SWAA2023041213604

## Discrepancy

PASSENGER CABIN - SEAT TRACK HAS CORROSION RBL 45.5 BS 727C+17; BS 727E+8; BS 747+19; BS787+10; BS 827+1.<[01] VERIFIED APPLICABILITY FOR SRM 53-00-52-1A-1.<BR>REMOVED CORROSION FROM WELL OF PASSENGER CABIN - SEAT TRACK RBL 45.5 FROM BS 727E+8 TO BS 727E+11. L= 3.0' X W=.900' X D=.042' AND FROM BS 787+10 TO BS 787+12.5. L=2.5' X W=.900' X D=.041'. FOUND TO BE OUT OF LIMITS PER SRM 53-00-52-1A-1; PAR.4.A(2).(A); FIG 103; DETAIL A.<BR>ID TOOL: ATS1738; S/N: UNKNOWN; D.D.:10/2023.;[02] CERTIFIED CORRECTIVE ACTION 1 REMOVED PASSENGER CABIN SEAT TRACK RBL45.5 BS727B-887 PER SRM 51-40-02-0G-0.;[05] RECEIVED NEW SEAT TRACK. FABRICATED IN ACCORDANCE WITH BOEING DWG 146A5300. REFER TO ATS BUILD RECORD 545484. PART MARKED IN ACCORDANCE WITH ATS QCM 4.35.26.<BR><BR>LOCATED AND DRILLED SEAT TRACK PER DWG 146A5300 AND SRM 51-40-02-0G-0< INSTALLED ALL PERMANENT FASTENERS AND INSTALLED ALL TEMPORARY FASTENERS TO SEAT TRACK PER SRM 51-40-02-0G-0;[09] COMPLETED INSTALLATION OF SEAT TRACK IAW SRM CH 51-40-02 AND DRAWING # 146A5300 ID# 146 AND COMPLETED STEP 1.COMPLETED INSTALLATION OF SEAT TRACK IAW SRM CH 51-40-02 AND DRAWING # 146A5300 ID# 146 AND COMPLETED STEP 1.TOOL ID # 12062 S/N SP02F31924 CAL. DUE 10/2023.;[11] COMPLETED INSTALLATION OF SEAT TRACK IAW SRM CH 51-40-02 AND DRAWING # 146A5300 ID# 146 AND COMPLETED STEP 1.TOOL ID # 12062 S/N SP02F31924 CAL. DUE 10/2023. CHANGED STEP ONE TO PARTIAL

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