# SDR MALA976620

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 8, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N503XJ
- Make and model: Bac AVRO146RJ85A
- Aircraft serial: E2310
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Adau
- Part number: HC396H0485008
- Condition: Malfunctioned
- Location: E/E Comp
- Stage of operation: CR
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MALA976620

## Discrepancy

AUTO THROTTLE, AUTO PILOT, FLIGHT DIRECTOR, TRP, ALTITDE ALERTER KICKED OFF LINE IN FLIGHT.  MAINTENANCE, FAULT CODES SHOWED NR 1 & NR 2 ADC'S INVALID FAULTS.  COULD NOT DUPLICATE FAULT ON GROUND.  REPLACED ADAU FOR PRECAUTIONS, SYSTEMS ALL CHECK GOOD IAW AVRO RJ-85 MM SECTIONS 34, 22, 76.

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