No gear up indication

[Frank Benvin]

1967 -337b

When gear was down and locked - green light was on
Selected gear up -gear cycled up doors closed handle went to neutral - no yellow light
Pushed the light to test and light came on
Selected gear down everything worked with a neutral handle and green light

Ended up the light bulb had unscrewed a bit I guess with vibration - When I pushed it in it made contact and it lit up When the gear was cycled it did not make contact and did not light up

Screwed in the bulb and it works now