An information display system for an electric or hybrid aircraft for notifying failures of a plurality of components of the electric or hybrid aircraft, said components including at least one battery pack or at least one electrical motor, the information system comprising: a first, programmable monitoring subsystem for monitoring said components and delivering a first set of parameters relating to said components; a first information display subsystem having: - a first matrix display panel comprising a matrix display; - a programmable processing system programmed to present a first set of information related to said first set of parameters on said matrix display; and - a digital bus driver configured to receive said first set of parameters over a first, digital communication bus, characterised in that the information system further comprises a second, non-programmable monitoring subsystem for monitoring said components and delivering a second set of parameters relating to said components, a second information display subsystem having: - a second, redundant, display panel consisting of a non-matrix set of indicators, - a non-programmable, non-stateful electronic control circuit for controlling said set of indicators for presenting a second set of information related to said second set of parameters and to at least some parameters from said first set of parameters, and - a combining circuit for combining some of the parameters of said second set before transmission over said second communication bus. a first, programmable monitoring subsystem for monitoring said components and delivering a first set of parameters relating to said components; a first information display subsystem having: - a first matrix display panel comprising a matrix display; - a programmable processing system programmed to present a first set of information related to said first set of parameters on said matrix display; and - a digital bus driver configured to receive said first set of parameters over a first, digital communication bus, - a first matrix display panel comprising a matrix display; - a programmable processing system programmed to present a first set of information related to said first set of parameters on said matrix display; and - a digital bus driver configured to receive said first set of parameters over a first, digital communication bus, characterised in that the information system further comprises a second, non-programmable monitoring subsystem for monitoring said components and delivering a second set of parameters relating to said components, a second information display subsystem having: - a second, redundant, display panel consisting of a non-matrix set of indicators, - a non-programmable, non-stateful electronic control circuit for controlling said set of indicators for presenting a second set of information related to said second set of parameters and to at least some parameters from said first set of parameters, and - a combining circuit for combining some of the parameters of said second set before transmission over said second communication bus. a second, non-programmable monitoring subsystem for monitoring said components and delivering a second set of parameters relating to said components, a second information display subsystem having: - a second, redundant, display panel consisting of a non-matrix set of indicators, - a non-programmable, non-stateful electronic control circuit for controlling said set of indicators for presenting a second set of information related to said second set of parameters and to at least some parameters from said first set of parameters, and - a combining circuit for combining some of the parameters of said second set before transmission over said second communication bus. - a second, redundant, display panel consisting of a non-matrix set of indicators, - a non-programmable, non-stateful electronic control circuit for controlling said set of indicators for presenting a second set of information related to said second set of parameters and to at least some parameters from said first set of parameters, and - a combining circuit for combining some of the parameters of said second set before transmission over said second communication bus.