In order to help you, you're gonna have to give us a little bit more than a name and a village.
Lets be a little bit more specific. Can you provide approximate time/year re your ancestor(we are looking for info re your ancestor), bmd data (birth, marriage, death if you have any dates would be a start), the village Falefa on Upolu? Savai'i? WS? AS?, is SALANOA a "matai" title? if so do you have any other surnames of your "aiga"/Family?, you mention a brother (if he's still living I don't need to know), what about parents names? etc.
Do you know how many SALANOAs there are to look thru if all I have is 300+ Malakis and just Falefa? If Falefa is a minor village to a major village it would help so much if you can provide details where Falefa is located, i.e., near Apia? near the Faleolo airport? maybe on Savai'i? I checked Google maps and find they point to the ocean for a location for Falefa - do you see my predicament?
If you and others would remember it was possible for me and my fellow-genies to do a meticulous research once-upon-a-time... not anymore. We need your help more than you need ours.
But seriously, I need a little bit more than what you've given - help me out. Ask around the "aiga"/Family if you have to.