Flight crew reported multiple display unit failures; requiring a diversion.

Attributes
ACN	1678957
Time
Date	201908
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	PC-12
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Electrical/Electronic Panel & Parts
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine
Person 2
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Experience	Flight Crew Last 90 Days 97 Flight Crew Total 2015 Flight Crew Type 798
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy

Narrative:

At 21;000 ft. During normal cruise we had DU1 & DU2 flashing red X's with associated check du cautions. Once the caution was pressed; the system reset; but failed again; it cycled this way several times. The first officer was assigned to fly while the captain referenced the QRH. The first officer coordinated a descent and diversion to ZZZ as directed by the captain. While running the QRH procedure; the captain noticed the system status message that indicated there was an AGM1 failure. The captain referenced the check DU1 with AGM1 message and selected AGM2 for DU1. The crew requested assistance ATC in the form of vectors for the visual approach to runway 1 at ZZZ. The captain took the controls after regaining video on DU1 and then flew the visual approach to landing.

Original NASA ASRS Text

Title: Flight crew reported multiple display unit failures; requiring a diversion.

Narrative: At 21;000 ft. during normal cruise we had DU1 & DU2 flashing red X's with associated check DU Cautions. Once the caution was pressed; the system reset; but failed again; it cycled this way several times. The First Officer was assigned to fly while the Captain referenced the QRH. The First Officer coordinated a descent and diversion to ZZZ as directed by the Captain. While running the QRH procedure; the Captain noticed the system status message that indicated there was an AGM1 failure. The Captain referenced the Check DU1 with AGM1 message and selected AGM2 for DU1. The crew requested assistance ATC in the form of vectors for the visual approach to Runway 1 at ZZZ. The Captain took the controls after regaining video on DU1 and then flew the visual approach to landing.

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.