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A columbia 400 pilot suffered the failure of his ahrs system and diverted to a nearby airport using standby instrumentation.
| Attributes | |
| ACN | 836014 |
| Time | |
| Date | 200905 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.VORTAC |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Lancair Columbia |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Route In Use | Direct |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Compass (HSI/ETC) |
| Person 1 | |
| Function | Single Pilot |
| Qualification | Flight Crew Instrument Flight Crew Multiengine Flight Crew Commercial |
| Experience | Flight Crew Last 90 Days 30 Flight Crew Total 300 Flight Crew Type 90 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Aircraft Equipment Problem Less Severe Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance Deviation - Track / Heading All Types |
Narrative:
Enroute I lost the altitude heading reference system (ahrs) on the G1000 and therefore the autopilot. I proceeded to fly the plane under severe IMC that was becoming increasingly challenging using backup standard instruments. While troubleshooting the problem; including setting up the backup portable GPS; I deviated from course and altitude. This was immediately recognized by ATC who asked if an emergency should be declared. I responded no; that I had lost my ahrs and would like to descend to land. I was then given vectors to a nearby airport. The problem was caused by being distracted with other issues; i.e. Trouble shooting and activating the portable GPS rather than concentrating on flying the plane. The information should have been communicated to ATC sooner. Discussed the issue with the G1000 and it will need to undergo diagnostic checks.
Original NASA ASRS Text
Title: A Columbia 400 pilot suffered the failure of his AHRS system and diverted to a nearby airport using standby instrumentation.
Narrative: Enroute I lost the altitude heading reference system (AHRS) on the G1000 and therefore the autopilot. I proceeded to fly the plane under severe IMC that was becoming increasingly challenging using backup standard instruments. While troubleshooting the problem; including setting up the backup portable GPS; I deviated from course and altitude. This was immediately recognized by ATC who asked if an emergency should be declared. I responded no; that I had lost my AHRS and would like to descend to land. I was then given vectors to a nearby airport. The problem was caused by being distracted with other issues; i.e. trouble shooting and activating the portable GPS rather than concentrating on flying the plane. The information should have been communicated to ATC sooner. Discussed the issue with the G1000 and it will need to undergo diagnostic checks.
Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.