Narrative:

On descent into ord on a complex RNAV arrival; we received a dual mfd [multi functional display] failure. Both screens went blank at the same time. We continued normal ops using our CDI and remaining screens. Upon arrival in ord; we wrote up the issue and it was quickly reset.this was the second time in two days I have experienced a dual mfd failure. Many of the airplanes I have flown on this trip have history of single and dual mfd failures. This significantly raised our workload and vulnerability to making errors in the terminal environment. Much of our attention was focused on complying with restrictions on the complex RNAV arrivals. Fortunately it was a clear day; and we didn't require radar. The good flight conditions allowed us to accept the increased workload without our mfd screens. Although we are good pilots capable of maintaining situational awareness without a moving map; it's unacceptable to me if they are failing on a regular basis. I would hate to lose both screens on a flight where I need radar or TCAS. This should be concerning to everyone.I do not know what is causing them to fail; but every mfd failure I've had in this aircraft type (dual or single) has been in the terminal environment with a complex arrival loaded in the FMS and displayed on the map.the company and aircraft manufacturer should determine what is causing these failures and implement fixes to prevent them from happening.in the meantime; there should be a company and FAA approved reset procedure developed so that we can recover use of one or both screens in the event that this happens when the screens are needed for safe flight.

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Original NASA ASRS Text

Title: Crew of CRJ-700 had MFD (multi functional display) failure; and report that it is a common occurrence in that airplane.

Narrative: On descent into ORD on a complex RNAV arrival; we received a dual MFD [Multi Functional Display] failure. Both screens went blank at the same time. We continued normal ops using our CDI and remaining screens. Upon arrival in ORD; we wrote up the issue and it was quickly reset.This was the second time in two days I have experienced a dual MFD failure. Many of the airplanes I have flown on this trip have history of single and dual MFD failures. This significantly raised our workload and vulnerability to making errors in the terminal environment. Much of our attention was focused on complying with restrictions on the complex RNAV arrivals. Fortunately it was a clear day; and we didn't require radar. The good flight conditions allowed us to accept the increased workload without our MFD screens. Although we are good pilots capable of maintaining situational awareness without a moving map; it's unacceptable to me if they are failing on a regular basis. I would hate to lose both screens on a flight where I need radar or TCAS. This should be concerning to everyone.I do not know what is causing them to fail; but every MFD failure I've had in this aircraft type (dual or single) has been in the terminal environment with a complex arrival loaded in the FMS and displayed on the map.The company and aircraft manufacturer should determine what is causing these failures and implement fixes to prevent them from happening.In the meantime; there should be a company and FAA approved reset procedure developed so that we can recover use of one or both screens in the event that this happens when the screens are needed for safe flight.

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.