# SDR REXA2021110400888

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 11, 2021
- Submitted: November 4, 2021
- Operation: Air carrier
- Aircraft: [N904XJ](https://openairdocs.org/aircraft/N904XJ), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15135
- Aircraft time: 31,433 hours, 21,500 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 601R3180811
- Condition: Corroded
- 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/REXA2021110400888

## Discrepancy

"PAX DOOR INTERCOSTAL DD4 CORRODED BETWEEN FS 320.163 AND FS 329.41
"	"REMOVED AND REPLACED INTERCOSTAL DD4 PT#: 601R318081-1 IAW           
CRJ900 SRM 51-40-11-001-001-A01, 51-42-21-001-001-A01, AND 51-42-06- 
001-A01. REINSTALLED BACKUP FITTING IAW CRJ900 SRM 51-42-21-001-001- 
A01 WVAC EMP STAMP # 738 MTC                                         
"

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