In Avatar: The Last Airbender, Season 1 Episode 2, Aang enters the Avatar State to save himself from drowning when he is thrown off the side of a boat:
Aang also enters the Avatar State in Season 1 Episode 3, when he realizes he is the last living air bender of the Southern Air Temple:
The second time that Aang enters the Avatar State, the statues of all the past Avatars in the Southern Air Temple “light up”, which one can assume happens every time the Avatar State is entered. However, this time, specific signal beacons at temples located in water tribe, earth tribe, and fire tribe locations are activated which is reported by fire tribe priests(?) as signaling the return of the Avatar.
My question is, if entering the Avatar State triggered the various signal beacons to light, why weren’t these signal beacons activated the first time that Aang entered the Avatar State in S01E02?