1. A method for monitoring combustion dynamics of a can annular combustor comprising: monitoring respective dynamic operating conditions of a plurality of combustor cans of a can annular combustor of a gas turbine engine with respective dynamic operating condition sensors associated with each of the cans; determining respective dynamic operating conditions of each combustor can as exhibited over time; grouping the cans into two or more risk level groups according to their respective dynamic operating conditions as exhibited over time; identifying a malfunctioning dynamic operating condition sensor for at least one of the cans; and determining a need to service the identified sensor according to the associated can's risk level group membership.