ATC reported a loss of communication with a uav and its chase aircraft.

Attributes
ACN	1762438
Time
Date	202009
Local Time Of Day	0001-0600
Place
Locale Reference	FAI.TRACON
State Reference	AK
Aircraft 1
Make Model Name	UAV - Unpiloted Aerial Vehicle
Operating Under FAR Part	Other 107
Flight Phase	Final Approach
Flight Plan	VFR
Aircraft 2
Make Model Name	Helicopter
Flight Phase	Final Approach
Person 1
Function	Enroute
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 10
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy

Narrative:

Our LOA / coa with the uas operators states they are required to establish 2 way communication and ATC approval prior to exiting R-2205. They are restricted to the recovery route called the green route; specifically designed to remain clear of 2 military airport finals in case of a lost link emergency scenario. Aircraft X exited R2205 on the green route; with aircraft Y in trail; without establishing communications and approval with fai approach. The controller attempted different frequencies; mains; stbys; rtr's; and even guard calls with no success. Finally; the controller had to call fbk ATCT to request the call sign of the chase aircraft (R22745). The controller was successful in reaching the chase aircraft and had the chase aircraft relay to aircraft X to contact approach. By the time communication was established; aircraft X was 8.59 miles outside of R2205; inbound to fbk on the green route. Follow the coa / LOA; or update it with more current operations since it is over 2 years old.

Original NASA ASRS Text

Title: ATC reported a loss of communication with a UAV and its chase aircraft.

Narrative: Our LOA / COA with the UAS operators states they are required to establish 2 way communication and ATC approval prior to exiting R-2205. They are restricted to the recovery route called the Green Route; specifically designed to remain clear of 2 military airport finals in case of a lost link emergency scenario. Aircraft X exited R2205 on the green route; with Aircraft Y in trail; without establishing communications and approval with FAI approach. The controller attempted different frequencies; MAINS; STBYs; RTR's; and even guard calls with no success. Finally; the controller had to call FBK ATCT to request the call sign of the chase aircraft (R22745). The controller was successful in reaching the chase aircraft and had the chase aircraft relay to Aircraft X to contact approach. By the time communication was established; Aircraft X was 8.59 miles outside of R2205; inbound to FBK on the green route. Follow the COA / LOA; or update it with more current operations since it is over 2 years old.

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.