SR22 pilot reported on an intermittent avionics problem and a pfd failure.

Attributes
ACN	1328657
Time
Date	201601
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	Mixed
Aircraft 1
Make Model Name	SR22
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Route In Use	Vectors
Flight Plan	IFR
Component
Aircraft Component	PFD
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Instrument
Experience	Flight Crew Last 90 Days 20 Flight Crew Total 800 Flight Crew Type 500
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance Deviation - Track / Heading All Types Inflight Event / Encounter Weather / Turbulence

Narrative:

Just before liftoff avionics started giving me false information. At approximately 500 feet had avionics failure in moderate to heavy turbulence. Avionics showed aircraft at a different heading than what I saw visually. While working a solution pfd went solid red. Tower informed me I was headed in the wrong direction and not on runway heading. Tower told me to correct and switched me to departure. Departure gave me a new heading and told me I was over my assigned 3000 feet altitude and to correct.I told ATC I was in heavy turbulence and was getting it corrected. ATC took me up to 5000 feet over the clouds. Turbulence stopped and avionics came back on. ATC asked me what my assigned altitude was. I told him it was 3000 feet but I had lost avionics on takeoff and was trying to get the plane altitude and heading corrected. He asked me if everything was working now and I told him yes it was. The flight continued with no more issues. The plane went to avionics repair as soon as we landed. Avionics shop confirmed that they could see the failure but could not duplicate it and did not know why it happened.

Original NASA ASRS Text

Title: SR22 pilot reported on an intermittent avionics problem and a PFD failure.

Narrative: Just before liftoff avionics started giving me false information. At approximately 500 feet had avionics failure in moderate to heavy turbulence. Avionics showed aircraft at a different heading than what I saw visually. While working a solution PFD went solid red. Tower informed me I was headed in the wrong direction and not on runway heading. Tower told me to correct and switched me to departure. Departure gave me a new heading and told me I was over my assigned 3000 feet altitude and to correct.I told ATC I was in heavy turbulence and was getting it corrected. ATC took me up to 5000 feet over the clouds. Turbulence stopped and avionics came back on. ATC asked me what my assigned altitude was. I told him it was 3000 feet but I had lost avionics on takeoff and was trying to get the plane altitude and heading corrected. He asked me if everything was working now and I told him yes it was. The flight continued with no more issues. The plane went to avionics repair as soon as we landed. Avionics shop confirmed that they could see the failure but could not duplicate it and did not know why it happened.

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.