Gear Lever is Down and not red
Gear Down Lights (Three Green)
RVS (Revers System Not Ready) light comes on if props are back (On B200).
Prop Sync light on (B200) if prop sync is still on.
Mirrors
Flaps past approach setting will activate the horn on most A/C
Power setting, differs for A/C. Pull power back and see if horn activates.
Fly By the Tower.
Power surge on the amp/volt meter when activated.
Some landing lights or taxi lights are on the nose strut, you can use them!
Notice a pitch down moment, or increase in drag, decrease in airspeed.
You can switch bulbs in the indicators to find a burned out bulb, or press to test.
Mark