# SDR VNAA0605009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 14, 2006
- Submitted: May 24, 2006
- Operation: Air carrier
- Aircraft: [N223JS](https://openairdocs.org/aircraft/N223JS), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7892
- Aircraft time: 5,311 hours, 5,264 cycles
- Engine: Ge CF343B1
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Ahrs
- Part number: 6229336400
- Part serial: 1BVPB
- Condition: Failed
- Location: Nr 1
- Part time: 5,311 hours, 5,264 cycles
- 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/VNAA0605009

## Discrepancy

ON CLIMBOUT THE -EFIS COMP MON- CAUTION MESSAGE ILLUMINATED AND THE CAPTAIN'S HEADING WAS 30 DEGREES 60 DEGREES OFF.  THE FLIGHT RETURNED TO DAY AND LANDED WITHOUT INCIDENT.  MAINTENANCE REPLACED THE NR 1 AHRS ATTITUDE/HEADING COMPUTER WITH A SERVICEABLE UNIT.  THE SYSTEM OPERATIONALLY CHECKED GOOD.  THE AIRCRAFT WAS RELEASED FOR SERVICE.

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