A method of detecting combustor flashback in a gas turbine engine , the method comprising: positioning a dynamic pressure sensor within a combustion section having a flame tube ; providing a flow of fuel to the gas turbine engine ; operating the gas turbine engine to establish a flame having a flame front spaced a non-zero distance from an outlet of the flame tube ; detecting pressure changes adjacent the flame tube to produce pressure signals; monitoring a characteristic of the signals provided by the dynamic pressure sensor ; detecting a flashback signature within the signals provided by the dynamic pressure sensor ; and varying the fuel flow in response to the detection of the flashback signature, wherein the combustion section includes a plurality of separate combustor baskets and wherein the dynamic pressure sensor is positioned to detect pressure changes within a first of the combustor baskets , wherein the flame tube is positioned within the first combustor basket , and wherein each combustor basket includes at least one flame tube , wherein the method further comprises the steps of: positioning a vibration sensor adjacent each of the plurality of combustor baskets , each vibration sensor measuring vibrations of its respective combustor basket and generating signals indicative of those measured vibrations and comparing the measured vibrations between the vibration sensors and identifying a measured vibration from one vibration sensor that is not present in the other measured vibrations. operating the gas turbine engine to establish a flame having a flame front spaced a non-zero distance from an outlet of the flame tube ; detecting pressure changes adjacent the flame tube to produce pressure signals; monitoring a characteristic of the signals provided by the dynamic pressure sensor ; detecting a flashback signature within the signals provided by the dynamic pressure sensor ; and varying the fuel flow in response to the detection of the flashback signature, wherein the combustion section includes a plurality of separate combustor baskets and wherein the dynamic pressure sensor is positioned to detect pressure changes within a first of the combustor baskets , wherein the flame tube is positioned within the first combustor basket , and wherein each combustor basket includes at least one flame tube , wherein the method further comprises the steps of: positioning a vibration sensor adjacent each of the plurality of combustor baskets , each vibration sensor measuring vibrations of its respective combustor basket and generating signals indicative of those measured vibrations and comparing the measured vibrations between the vibration sensors and identifying a measured vibration from one vibration sensor that is not present in the other measured vibrations. positioning a vibration sensor adjacent each of the plurality of combustor baskets , each vibration sensor measuring vibrations of its respective combustor basket and generating signals indicative of those measured vibrations and comparing the measured vibrations between the vibration sensors and identifying a measured vibration from one vibration sensor that is not present in the other measured vibrations. <EOS>