Thermal detection assemblies and methods

An assembly, comprising:

• a housing having a body extending between a first end and a second end, the first end of the housing configured to be operably coupled with a surface of a power system, the body of the housing extending through a passage of the surface of the power system, the housing including one or more interior surfaces defining a cavity, the cavity having an opening proximate the second end of the housing;
• an indicator device configured to be disposed within the cavity of the housing, the indicator device extending between a third end and a fourth end, the fourth end of the indicator device disposed proximate the opening of the cavity;
• and
• a thermal spring system disposed within the cavity of the housing and configured to be engaged with the indicator device, the thermal spring system configured to maintain a position of the indicator device within the cavity, the thermal spring system including a spring device and a thermal component, wherein the spring device is configured to be operably coupled with the indicator device at a location between the third end and the fourth end of the indicator device, and the thermal component is configured to be operably coupled with the third end of the indicator device,
• wherein one or more characteristics of the thermal component are configured to change responsive to the thermal component of the thermal spring system being exposed to a temperature exceeding a designated threshold,
• wherein the thermal spring system is configured to control movement of the indicator device to move the indicator device from a first position to a second position responsive to the one or more characteristics of the thermal component changing, a portion of the fourth end of the indicator device configured to move out of the cavity of the housing responsive to the thermal spring system moving the indicator device from the first position to the second position.

A thermal detection assembly, comprising:

• a housing having a body extending between a first end and a second end, the first end of the housing configured to be operably coupled with a surface of a propulsion system of an aircraft system, the body of the housing extending through a passage of the surface of the aircraft system, the housing including one or more interior surfaces defining a cavity, the cavity having an opening proximate the second end of the housing;
• an indicator device configured to be disposed within the cavity of the housing;
• and
• a thermal spring system disposed within the cavity of the housing and configured to be engaged with the indicator device, the thermal spring system configured to maintain a position of the indicator device within the cavity,
• wherein one or more characteristics of the thermal spring system are configured to change responsive to the thermal spring system being exposed to an amount of thermal energy generated by the propulsion system exceeding a designated threshold, and
• wherein the thermal spring system is configured to encourage a portion of the indicator device to move out of the cavity of the housing responsive to the one or more characteristics of the thermal spring system changing.