The issue here: the Sky Shark (and wreckage) was from the OLD version of Jade Forest that only existed in beta. The Sky Shark was removed, and Honeydew Village was put in its place. So...it doesn't exist. There's no such thing as the Sky Shark. The horde gunship is called Hellscream's Fist.
This inconsistency could easily be fixed by just changing the name of the flare to Hellscream's Fist Signal Flare, and change the text to say it was stolen from the wreckage of Hellscream's Fist.