# SDR SWAA2021050360671

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 2021
- Submitted: May 3, 2021
- Operation: Air carrier
- Aircraft: [N435WN](https://openairdocs.org/aircraft/N435WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32455
- Aircraft time: 60,695 hours, 36,047 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Block
- Condition: Delaminated
- Location: Aft Lavatory
- 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/SWAA2021050360671

## Discrepancy

AFT LAV B MID LOWER FLOOR BOTTOM SURFACE IS DELAMINATED AND CORRODED / REMOVED AND REPLACED LOWER FLOOR BOTTOM BLOCK AT LAVATORY B AS PER BOEING 737 ZODIAC AEROSPACE STANDAR PRACTICES MANUAL 25-46-99 AND EA NO. M20-125-00253 REV IR.

---
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.