# SDR SWAA2020042730154

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2020
- Submitted: April 27, 2020
- Operation: Air carrier
- Aircraft: [N920WN](https://openairdocs.org/aircraft/N920WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32460
- Aircraft time: 40,949 hours, 24,484 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Cracked
- Location: Fuselage
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2020042730154

## Discrepancy

CABIN FLOOR STRUCTURE FLOOR INTERCOSTAL UPPER CHORD STA 380-400 BL0 IS CRACKED AT 4TH FLOOR BOARD HOLE / REMOVED AND REPLACED CABIN FLOOR STRUCTURE INTERCOSTAL UPPER CHORD STA 380-400 BLO IAW SRM 51-40-02-0G-0 AND BOEING DWG 143A5400 SHT 114 REV A ATAG A34874

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.