Globemaster (C-17)
Air Traffic Control Developmental
Training / Qualification; Confusion; Communication Breakdown
ATC Issue All Types; Conflict Airborne Conflict; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Issued New Clearance
Manuals; Chart Or Publication; Airspace Structure; Procedure
An aircraft was inbound to Elmendorf AFB (EDF) via ILS Runway 6. This final approach course is protected from VFR traffic via FAR-93. Coordination with Merrill Field (MRI) Airport Traffic Control Tower (ATCT) by landline is required to allow/restrict aircraft VFR from penetrating the FAR-93 with or without coordination. I called MRI to make them 'red light'; instead of saying 'red light' I said 'green light'.Stopping departures and restricting Lake Hood (LHD) VFR traffic into and out of the FAR-93 is an automated button. We could possibly use the same button or another button to indicate red lights for MRI and ANC.
The red light / green light with MRI has been an item of concern for at least 4 years; several fixes have been attempted; and all have had failures.
Two A11 TRACON controllers reported a communication breakdown with the nearby MRI Tower Controller during the coordination of a military airport arrival.