# SDR VNAA202306220007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 7, 2023
- Submitted: June 22, 2023
- Operation: Air carrier
- Aircraft: [N551NN](https://openairdocs.org/aircraft/N551NN), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15327
- Aircraft time: 19,976 hours, 17,941 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- Part number: SH670313851S
- Condition: Corroded
- Location: Zone 100
- 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/VNAA202306220007

## Discrepancy

CORROSION ON STGR 21RH BTW FS421.00 TO FS437.00.  DUE TO EXCESSIVE CORROSION STRINGER 21RH BTW FS=394 TO FS=475 WAS EVALUATED OUT OF LIMITS PER CRJ900 SRM 53-00-00-101-001-A01 AND WAS REPLACE PER CRJ-900 SRM 51-42-06-001-001-A01 AND SRM 51-42-21-001-001-A01

---
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.