# SDR ANCF2018012803

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 28, 2018
- Submitted: February 5, 2018
- Operation: Air carrier
- Aircraft: [N764AV](https://openairdocs.org/aircraft/N764AV), registered now
- Make and model: Airbus A320-251N
- Registry model: [Airbus A320-251N](https://openairdocs.org/model/airbus-a320-251n) (OpenAirDocs)
- Aircraft serial: 7887
- Aircraft time: 296 hours, 114 cycles
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Warning Light
- Condition: False Activation
- Location: Nr 1 Engine
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ANCF2018012803

## Discrepancy

DURING START,  THE NR 1 ENGINE MINOR FAULT APPEARED ON ECAM.  IAW AMM 73-29-00-710-802A, FADEC TEST WAS PERFORMED AND NO FAULTS WERE SHOWN. THE PRF SHOWS QUALIFIER B1/2/WXR1 (1SQ1). THE QUALIFIERS B, TWO QUALIFIERS B INPUTS ARE USED. THESE INPUT SIGNALS ARE PROVIDED BY THE ENGINE OIL PRESSURE SENSORS INDICATING WHEN THERE IS NORMAL OPERATING PRESSURE. THE QUALIFIER B1 IS CONNECTED TO ENGINE 1.

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