Aircraft experienced multiple failures preventing IMC flight. After takeoff returned to field.

Attributes
ACN	1322139
Time
Date	201601
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.TRACON
State Reference	US
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	Dash 8 Series Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	Attitude Indicator(Gyro/Horizon/ADI)
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

On the climb out we first had an attitude direction indicator (ADI) roll mismatch; followed by horizontal situation indicator (HSI) roll mismatch. We then lost both of our yaw dampers and flight directors and also had an ahrs data invalid message. At this point we decided to return to the airport.

Original NASA ASRS Text

Title: Aircraft experienced multiple failures preventing IMC flight. After takeoff returned to field.

Narrative: On the climb out we first had an Attitude Direction Indicator (ADI) roll mismatch; followed by Horizontal Situation Indicator (HSI) roll mismatch. We then lost both of our yaw dampers and flight directors and also had an AHRS data invalid message. At this point we decided to return to the airport.

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.