# SDR MALA976327

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 31, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N453XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 453
- System (JASC): [3425 · Integrated Flight System](https://openairdocs.org/jasc/3425)
- Part: Ahars
- Part number: 6226190113
- Condition: Failed
- Location: Cockpit
- Stage of operation: CR
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MALA976327

## Discrepancy

HEADING COMPARTOR CAME ON IN FLIGHT AND WOULD NOT SLAVE 12 DEGREES DIFFERENCE, SLOWLY CORRECTED TO 8 DEGREES.  AIRCRAFT RETURNED TO MSP.  MAINTENANCE REPLACED THE AHARS COMPUTER.  SYSTEM OPS CHECK GOOD IAW SF 340 MM 34-20-00.

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