# SDR SIMA201902265001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 25, 2019
- Submitted: February 26, 2019
- Operation: Air carrier
- Aircraft: [N681AE](https://openairdocs.org/aircraft/N681AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 14500824
- Aircraft time: 36,697 hours, 31,117 cycles
- System (JASC): [3510 · Crew Oxygen System](https://openairdocs.org/jasc/3510)
- Part: Relay
- Condition: Malfunctioned
- Location: Oxygen System
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA201902265001

## Discrepancy

OXYGEN LO PRESS  IMMEDIATLEY AFTER TAKE OFF OXY PREE GAUGE READS 0 PSI-C/A-FOUND 02 GAUGE TO BE READING 1650 PSI. COCKPIT INDICATION READS ZERO DEFERRED OXYGEN PRESSURE INDICATION SYSTEM MEL 35-01 AUTH 020878-B. REMOVED AND REPLACED O2 CTRL TRANSFERRELAY K0417 NO DEFECTS NOTED CB'SOK O2 INDICATIONJ NOW READING OK MEL ITEM RESTORED.

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