The Coastguard Maverick was a helicopter that was supposed to be featured in Grand Theft Auto: Vice City. The vehicle was removed prior to the game's release. It was supposed to be used by the Vice City Coastguard, who were also removed from the game.
The helicopter was originally featured in Grand Theft Auto: Vice City Stories, but was again removed from the game. The helicopter featured the remnants that were leftover from GTA Vice City. Its unknown why the helicopter was removed from both games.