# SDR VNAA2023120320021

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 1, 2023
- Submitted: December 3, 2023
- Operation: Air carrier
- Aircraft: [N558NN](https://openairdocs.org/aircraft/N558NN), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15342
- Aircraft time: 20,108 hours, 18,027 cycles
- System (JASC): [5420 · Nacelle/Pylon Miscellaneous Structure](https://openairdocs.org/jasc/5420)
- Part: Rub Strip
- Part number: CN6243073204
- Condition: Corroded
- Location: Zone 400
- Part time: 20,108 hours, 18,027 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/VNAA2023120320021

## Discrepancy

HN 118777 DISCREPANCY: RH LOWER CORE COWL AFT RUB STRIP HAS FRETTING CORROSION. CORRECTIVE ACTION: REMOVED AND REPLACED RH LOWER CORE COWL AFT RUB STRIP IAW CRJ-900 SRM 54-23-00-201-006-A01.

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