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Beech 36 pilot reported returning to the departure airport after experiencing a loss of ahrs and autopilot.
| Attributes | |
| ACN | 1363450 |
| Time | |
| Date | 201606 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Bonanza 36 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Approach |
| Flight Plan | VFR |
| Aircraft 2 | |
| Make Model Name | Bombardier Learjet Undifferentiated or Other Model |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Autopilot |
| Person 1 | |
| Function | Pilot Flying Trainee |
| Qualification | Flight Crew Private |
| Experience | Flight Crew Last 90 Days 18 Flight Crew Total 203 Flight Crew Type 106 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Clearance Inflight Event / Encounter Weather / Turbulence |
| Miss Distance | Vertical 700 |
Narrative:
Enroute under VFR and climbing to 3;500 ft we experienced ahrs (attitude and heading reference system) failure in the G1000; lost autopilot also. Troubleshooting breakers failed to resolve the problem (as attempted by my instructor). Decided to return to [departure airport] after a short 15 min flight. ATC gave me instructions 3500 ft to the south (weather was bad south); so I requested west instead and granted 3500 ft (no vectors) to the west; and to remain VFR. As I was approaching north side of [the airport] weather worsened; requested descent to 2500 ft and granted; asked by ATC to remain VFR (I have lost my ahrs). Ceiling rapidly worsened and inadvertently (in order to remain VFR as instructed; and with fear of getting into the clouds; with no instruments); I descended to 1800 ft without authorization. I was immediately requested by ATC to climb back to 2500 ft; as a learjet was going missed approach. Weather changed rather fast; turbulence was moderate; there was a windshear alert; my instruments had failed; and in the sake of safety; I was concerned about forcing myself into the clouds at relative low altitude. I should have made a 180 instead; but by then I had the airport in sight; and the weather was clear 1-2 miles to the west.
Original NASA ASRS Text
Title: Beech 36 pilot reported returning to the departure airport after experiencing a loss of AHRS and autopilot.
Narrative: Enroute under VFR and climbing to 3;500 ft we experienced AHRS (Attitude and Heading Reference System) failure in the G1000; lost autopilot also. Troubleshooting breakers failed to resolve the problem (as attempted by my instructor). Decided to return to [departure airport] after a short 15 min flight. ATC gave me instructions 3500 ft to the south (weather was bad south); so I requested west instead and granted 3500 ft (no vectors) to the west; and to remain VFR. As I was approaching north side of [the airport] weather worsened; requested descent to 2500 ft and granted; asked by ATC to remain VFR (I have lost my AHRS). Ceiling rapidly worsened and inadvertently (in order to remain VFR as instructed; and with fear of getting into the clouds; with no instruments); I descended to 1800 ft without authorization. I was immediately requested by ATC to climb back to 2500 ft; as a Learjet was going missed approach. Weather changed rather fast; turbulence was moderate; there was a windshear alert; my instruments had failed; and in the sake of safety; I was concerned about forcing myself into the clouds at relative low altitude. I should have made a 180 instead; but by then I had the airport in sight; and the weather was clear 1-2 miles to the west.
Data retrieved from NASA's ASRS site 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.