# SDR MALA010783

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 22, 2001
- Submitted: November 30, 2001
- Operation: Air carrier
- Aircraft: N450XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B450
- System (JASC): [3425 · Integrated Flight System](https://openairdocs.org/jasc/3425)
- Part: Computer
- Part number: 6226190113
- Part serial: 2982
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MALA010783

## Discrepancy

ON DEPARTURE FROM DTW ON FLIGHT 2787, A/P WOULD NOT ENGAGE.  SHORTLY AFTER THE ROLL LIGHT ON BOTH EADI'S CAME ON WITH THE AVIONICS CAUTION LIGHT.  THE FO'S EADI WAS SHOWING A RIGHT 7 DEGREE TURN WHEN STRAIGHT AND LEVEL AFTER LANDING FO'S EADI SHOWED A 3 DEGREE PITCH DOWN ATTITUDE.  AIR RETURN TO DTW.  MAINTENANCE COULD NOT DUPLICATED, REPLACED NR 1 AND NR 2 AHRS COMPUTER FOR PRECAUTION.  P/N 622-6190-113, S/N ON 2982, S/N OFF 2964.  ALL CHECKS GOOD AT THIS TIME.

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