4/20/23 

AIM 

2. 

With an FSS or with New York Radio or San Francisco Radio

. 

b. 

If communications are established with an FSS or New York Radio or San Francisco Radio, the pilot should 

advise that radio communications on the previously assigned frequency have been lost giving the aircraft’s 

position, altitude, last assigned frequency and then request further clearance from the controlling facility. The 

preceding does not preclude the use of 121.5 MHz. There is no priority on which action should be attempted first. 

If the capability exists, do all at the same time. 

NOTE

−

 

New York Radio and San Francisco Radio are operated by Collins Aerospace, Incorporated (formerly ARINC) under 

contract with the FAA for communications services. These Radio facilities have the capability of relaying information 

to/from ATC facilities throughout the country. 

Two-way Radio Communications Failure 

6

−

4

−

3