# SDR K11A2023060700211

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 11, 2023
- Submitted: June 7, 2023
- Operation: Air carrier
- Aircraft: [N406CK](https://openairdocs.org/aircraft/N406CK), registered now
- Make and model: Boeing 737-400
- Registry model: [Boeing 737-400](https://openairdocs.org/model/boeing-737-400) (OpenAirDocs)
- Aircraft serial: 28752
- Aircraft time: 58,657 hours, 28,266 cycles
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Keelbeam
- Condition: Corroded
- Location: Zone 200
- Part time: 58,657 hours, 28,266 cycles
- 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/K11A2023060700211

## Discrepancy

CORROSION ON LWR KEEL BEAM WEB APPROX STA 606 RBL 6.

---
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.