# SDR REXA2025093000897

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 26, 2025
- Submitted: September 30, 2025
- Operation: Air carrier
- Aircraft: [N340CA](https://openairdocs.org/aircraft/N340CA), registered now
- Make and model: Cndair CL6002C10
- Aircraft serial: 10062
- Aircraft time: 47,444 hours, 37,020 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Mask
- Part number: 2896010661
- Condition: No Deploy
- Location: Zone 200
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: G
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/REXA2025093000897

## Discrepancy

DURING CRUISE CREW REPORTED R BLEED DUCT WARNING WITH CABIN DEPRESSURIZATION. FOLLOWING QRH PROCEDURES THE DESCENDED AND DECLARED EMERGENCY. PASSENGER OXYGEN MASKS WERE DEPLOYED WITH A FEW NOT DEPLOYED, ROWS 7 C7D AND 16 A&B. INSPECTED SEAT 7 C/D AND 16 A/B OXYGEN MASKS WITH NO DEFECTS NOTED. RESTOWED IAW AMM 35-21-03. PERFORMED OPERATIONAL CHECK IAW AMM 35-20-00. OPERATIONAL CHECK GOOD.

---
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.