# SDR SWAA2021091310963

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 24, 2021
- Submitted: September 13, 2021
- Operation: Air carrier
- Aircraft: [N966WN](https://openairdocs.org/aircraft/N966WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36966
- Aircraft time: 32,714 hours, 19,999 cycles
- System (JASC): [5347 · Fuselage, Seat/Cargo Attach Fittings](https://openairdocs.org/jasc/5347)
- Part: Seat Track
- Part number: 146A535036
- Condition: Corroded
- Location: Bs 787
- 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/SWAA2021091310963

## Discrepancy

CORROSION ON BOTTOM OF SEAT TRACK FROM BODY STA 787 + 7 TO STA 787 + 12; RBL 44; WL 208 ; / [01] REMOVED CORROSION ON BOTTOM OF SEAT TRACK AT BS8787+7 TO 787+12 RBL45 WL208. 8.500'X0.90' MAX. DEPTH: 0.043' IAW SRM 53-00-52-1A-1 AND WAS FOUND OUT LIMITS. MEASUREMENT TOOL ID:ATS1737 S/N: UNKNOWN CAL. DATE 07/2021[03] INSTALLED EWIS AND FOD PROTECTION BS 727A-887 UNDER SEAT TRACK RBL 45 AS REQUIRED PER AMM 20-60-07; [04] REMOVED DAMAGED SEAT TRACK FROM BS 727B-887 RBL 45.5 IAW SRM CH 51-40-02; [05] SEAT TRACK FABRICATED IAW BOEING DWG 146A5350. REFER TO ATS WORK ORDER #W57955 & PO #778043. PART MARKED PER ATS QCM 4.35.26.; [06] LOCATED AND DRILLED SEAT TRACK AT BS 727B-887; RBL 44 ;WL 208 PER DWG 146A5300; [07] INSPECTED AND VERIFIED CORRECTIVE ACTION ITEMS 3 THRU 6. OKAY TO INSTALL SEAT TRACK.; [08] INSTALLED SEAT TRACK AT BS 727B-887; RBL 44; WL 208 IAW DWG 146A5300. TOOL USED ID#ATS1353 S/N 0614803529

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