Narrative:

While working controller in charge; I was working with the hillsboro fire department personnel in the tower cab checking on the communication radio when I heard the local 2 controller say something about traffic over alpha in his airspace. As I looked up there was another helicopter talking to the other local controller that had been departed westbound via the alpha taxiway. I told the local controller that the alpha pattern was hot. Later the pilot of aircraft X called and said that she got within 100 ft. Of the other 1st; the preferred departure routing for noise with the port of portland is westbound over the alpha taxiway. This regularly conflicts with other helicopter traffic in the alpha helicopter patters working on a different frequency with another controller. A different departure route should be used.2nd; currently there is no requirement to verbally coordinate via landline coordination to cross through another controllers airspace within the facility. All use of another controller's airspace should be coordinated via the landline between local control positions.

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Original NASA ASRS Text

Title: HIO Controller reports of an airborne conflict between two helicopters and the lack of coordination required by Tower SOP to enter or use another position's airspace.

Narrative: While working CIC; I was working with the Hillsboro fire department personnel in the tower cab checking on the communication radio when I heard the local 2 controller say something about traffic over alpha in his airspace. As I looked up there was another helicopter talking to the other local controller that had been departed westbound via the alpha taxiway. I told the local controller that the alpha pattern was hot. Later the pilot of Aircraft X called and said that she got within 100 ft. of the other 1st; the preferred departure routing for noise with the port of Portland is westbound over the alpha taxiway. This regularly conflicts with other helicopter traffic in the alpha helicopter patters working on a different frequency with another controller. A different departure route should be used.2nd; currently there is no requirement to verbally coordinate via landline coordination to cross through another controllers airspace within the facility. All use of another controller's airspace should be coordinated via the landline between local control positions.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.