# SDR 2013FA0000027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 16, 2013
- Submitted: January 16, 2013
- Operation: General aviation
- Aircraft: [N454DR](https://openairdocs.org/aircraft/N454DR), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500005
- Aircraft time: 472 hours, 312 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Wire
- Part number: UNK
- Condition: Misinstalled
- Location: O2 Mask Deploy
- Part time: 472 hours, 312 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2013FA0000027

## Discrepancy

DURING FUNCTIONAL CHECK OF THE AUTOMATIC MODE PASSENGER OXYGEN FUNCTIONAL CHECK, THE PASSENGER MASKS WOULD NOT DEPLOY, THE CABIN ALTITUDE CAS MESSAGE WAS DISPLAYED.  FOUND WIRES W201-11401-20 AND W201-11403-20 REVERSED IN CONNECTOR P2060.  CONNECTED WIRES IN CORRECT POSITION AND FUNCTIONAL TEST PASSED, MASKS DEPLOYED CORRECTLY.

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