# SDR SWAA2021122041988

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 9, 2021
- Submitted: December 20, 2021
- Operation: Air carrier
- Aircraft: N409WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 27896
- Aircraft time: 67,505 hours, 40,058 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: None
- Condition: Cracked
- Location: Fuselage
- 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/SWAA2021122041988

## Discrepancy

MAIN CABIN FLOOR CENTER WING SUPPORT BREAK CRACKED AT FASTENER TAIL BS 540, RBL 24.   REMOVED FLOOR PANEL 231 UF AT MAIN CABIN IAW AMM 53-21-00-000-801.  REMOVED SUPPORT BREAK IAW SRM 51-40-02-0G-0.  LOCATED AND DRILLED NEW PART IAW ARM 51-10-02-0G-0.   INSTALLED NEW BREAK IAW SRM 51-40-02-0G -0.   INTALLED SUPPORT BREAK AND FLOOR PANEL. 231UF IAW AMM 53-21-00-400-801, & SRM 51-40-02-0G -0.

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