# SDR SWAA2023041213312

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 7, 2023
- Submitted: April 12, 2023
- Operation: Air carrier
- Aircraft: [N443WN](https://openairdocs.org/aircraft/N443WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29838
- Aircraft time: 65,630 hours, 38,789 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Corroded
- Location: Zn 100 Fus Lower
- 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/SWAA2023041213312

## Discrepancy

AFT CARGO DOOR CUTOUT CORROSION AT FLOOR SUPPORT LOWER STRAP RBL 20' BETWEEN STA 827-847 AFT CARGO DOOR CUTOUT CORROSION AT FLOOR SUPPORT LOWER STRAP RBL 21.5' BETWEEN STA 827+7.5'<[01] REMOVED CORROSION FROM AFT CARGO DOOR CUTOUT AT FLOOR SUPPORT LOWER STRAP RBL 20' BETWEEN STA 827-847 PER B 737-700 SRM 51-10-02-0G-0.;[02] STEP 1 ENTERED IN ERROR.;[03] REMOVED AND REPLACED AFT CARGO DOOR CUTOUT FLOOR SUPPORT LOWER STRAP AT RBL 20 FROM STA 827-847 PER SRM 51-40-02-0G-0.;[04] VERIFIED STEP 3

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