I suppose it's possible that the Sukhoi would be carrying a couple of whatever the Indonesian equivalents of VFR sectionals are--would be a good idea if they were planning to make low-altitude sightseeing flights--but typically, an aircraft of this category would use only IFR en route and high-altitude charts, where topography is irrelevant because minimum-safe and en-route altitudes would guarantee substantial ground clearance. Plus, assumedly, ATC during approaches and departures. During normal operations of any transport-category or business-jet aircraft (the only turbines I've flown), "topographic charts" would not be aboard.