How do you gain access to the burner units of a can-annular combustor to perform maintenance?

Correct Answer: Option C — By sliding the can-annular case aside

Can-annular combustors feature individual burner cans arranged around the engine axis. Maintenance access is achieved by sliding the outer annular casing aside, which exposes the individual combustion cans. This design allows for the inspection or replacement of specific burner units without requiring a complete teardown of the entire engine assembly.