# SDR REXA2021012200037

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 16, 2021
- Submitted: January 22, 2021
- Operation: Air carrier
- Aircraft: [N308PQ](https://openairdocs.org/aircraft/N308PQ), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15308
- Aircraft time: 15,342 hours, 10,958 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Drain
- Part number: SH670318221
- Condition: Corroded
- 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/REXA2021012200037

## Discrepancy

STR 21L BACKUP SILL FROM FS 319 TO FS 333 IS CORRODED.  REMOVED, LOCATED AND INSTALLED NEW SERVICEABLE STRINGER 21 INTERCOSTAL BETWEEN FS 333 AND 319 P/N SH670-31822-1, IAW CRJ 900 SRM 51-42-06-001-001-A01 AND 51-40-11-001-001-A01.

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