# SDR WVER2019041700019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 17, 2019
- Submitted: April 17, 2019
- Operation: Air carrier
- Filed by: [MHI RJ Aviation Inc, repair station WVER835K](https://openairdocs.org/faa-repair-station/WVER835K/mhi-rj-aviation-inc.md) (OpenAirDocs)
- Aircraft: [N908FJ](https://openairdocs.org/aircraft/N908FJ), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15008
- Aircraft time: 37,150 hours, 29,375 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Relay
- Part number: M220D4N
- Condition: Defective
- Location: Oxygen System
- Part time: 37,150 hours, 29,375 cycles
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WVER2019041700019

## Discrepancy

AFTER DEPLOYMENT OF THE PASSENGER OXYGEN MASKS DURING FUNCTIONAL CHECK THE EICAS CATION MESSAGE "PASS OXY ON" WAS NOT DISPLAYED. REPLACED RELAY K129 IAW BOMBARDIER AMM 20-42-00-960-801-A02, 24-05-09-000-801-A01 AND 24-05-09-400-801-A01. FUNCTIONAL CHECK GOOD.

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