This is an actual arena, right? So there should be plenty of seats and it probably won't be too cold.
Often sectionals (and regionals) are held at local rinks with limited bleacher space all near the ice and a low ambient temperature, so that's something to keep in mind for other trips to these events.
Well, there are now steeper penalties for third and subsequent falls, although for elite men with multiple quads the penalties are still negligible compared with the base values.
There is no such thing as a "program execution component score."
The execution of the elements is covered in the GOEs (and fall deductions where applicable).
The program components are now called Skating Skills, Transitions, Performance, Composition, and Interpretation. None of the guidelines for any of these components has ever mentioned anything about falls or errors or execution of the elements. It's possible that errors (both those that do and those that do not merit fall deductions) will have a negative effect on the actual official criteria for each of these five components and could be penalized appropriately in any or all components where applicable. But not all errors, not even all falls, are equal, so it's up to each judge to decide how much of a negative effect, if any, each error contributes to the overall impression of the whole program in each of these five areas.
The component guidelines were very explicitly designed not to include required penalties for technical errors.
The third component used to be called "Performance and Execution" through last year. But even then, none of the criteria for this component said anything at all about falls or errors.
The name of this component was changed this year to just plain "Performance" and the current criteria are:
*Physical, emotional, intellectual involvement and projection
*Carriage & Clarity of movement
*Variety and contrast of movement and energy
*Individuality / personality
*Unison and "oneness" (pairs, ice dance)
*Spatial awareness between partners (pairs, ice dance)