Circle around and have a look and tell ATC.
It depends. The pilot is not under any obligation to go down and have a closer look, however contacting the appropriate authority by radio is the best course of action. The pilot really has an enormous amount of authority in these matters. Good judgment is what keeps pilots safe.
A signal/flare device.
Yes, another name for a flare used at sea is a distress signal or a signal flare. These are designed to alert nearby vessels or rescue teams in case of an emergency at sea.
Many types of signal exists.
signal, sign, beam, flare, lighthouse, bonfire, watchtower
That's the technical description for a signal flare !
E7 is a flare chute. Why? First of all, LepRecon pilots fly down there, and there are blast doors. It also specifically says, "Chute E7, leading to Tara."
hand held red flare
They have an expiration date
No, signal flares rely on oxygen to ignite and burn, which is not available in the vacuum of outer space. Additionally, the lack of atmosphere in space means there is no medium for the flare to create a visible signal.
Guide, beam, flare, signal, sign, watchtower, alarm, alert, heliograph, lantern...
The captain used a signal flare to let the lighthouse know they were there.