# SDR EE4Y2023091118388

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 11, 2023
- Submitted: September 11, 2023
- Operation: General aviation
- Filed by: [Cooperativa Autogestionaria de Servicios Aeroindus, repair station EE4Y151M](https://openairdocs.org/faa-repair-station/EE4Y151M/cooperativa-autogestionaria-de-servicios-aeroindus.md) (OpenAirDocs)
- Aircraft: [N296NV](https://openairdocs.org/aircraft/N296NV), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 2674
- Aircraft time: 49,788 hours, 16,641 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Switch
- Part number: 4441085000
- Part serial: 02102
- Condition: Out Of Tolerance
- Location: Zone 100
- Stage of operation: IN
- How discovered: C
- Nature of condition: I
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/EE4Y2023091118388

## Discrepancy

DURING PASSENGER OXYGEN SYSTEM FUNCTIONAL CHECK IAW ALLEGIANT TASK 352000-02-1-001 OF AUTOMATIC MASK RELEASE FOUND ALTITUDE SWITCH OUT OF LIMITS. DUE THIS CONDITION THE ALTITUDE SWITCH WAS REPALCED IAW A320 AMMTASK 35-23-15-000-001-A AND 35-23-15-400-001-A REV 40 DATED 05-01-2023. AFTER THE SYSTEM TEST WAS FOUND OK. THIS WORK IS COVERED BY COOPESA JOB A1N150 ITEM 1-23 P/N OFF 4441085-000 S/N OFF 02102 P/N ON 4441085-000 S/N ON 42085-000-05465,

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