There is an issue with this aircraft on 2020 that they said would be fixed on the sim update and wasn't. If you spawn cold and dark, the glareshield lights are turned off by a button that doesn't exist in the cockpit. If you spawn on the runway, the dome and pedestal lights have the same issue. What you need to do is go into control settings and assign 2 buttons - "toggle glareshield lights" and "toggle pedestal lights". Now load in, turn up the light knobs and then press those buttons and voila, light