# SDR MALA010653

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 19, 2001
- Submitted: August 22, 2001
- Operation: Air carrier
- Aircraft: N444XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B444
- System (JASC): [3425 · Integrated Flight System](https://openairdocs.org/jasc/3425)
- Part: Computer
- Part number: 6226190113
- Part serial: 933
- Condition: Malfunctioned
- Location: E/E Bay
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MALA010653

## Discrepancy

DURING FLIGHT 2730 CAPT AHRS COMPUTER FAILED AFTER DEPARTURE FROM DTW.  HDG RED FLAG ON LT AND RT EFIS, IN FLIGHT.  XSIDE DATA CLEARED FLAG, BUT EFIS/COMPASS OFF 15 DEGREES.  ALSO FLAG ON RIGHT RMI.  MAINTENANCE CND ON GROUND.  REPLACED NR 1 AHRS COMPUTER FOR PRECAUTION.  P/N 622-6190-113, S/N OFF 933, S/N ON 277.  ALL CHECKS GOOD.

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