Definition
A formal request submitted to the FAA to establish, modify, or discontinue a telecommunications service supporting air traffic control or aviation operations, such as a dedicated communications line, navigation aid link, or weather data circuit.
Plain English
An official paperwork request asking the FAA to set up, change, or cancel a communications connection used in aviation operations.
Context Anchor
Seen in FAA acronym lists and in airport, flight school, or agency paperwork dealing with communication services; not normally heard as an in-flight radio call.
Derivation
Telecommunication combines tele-, meaning “far off,” with communication, meaning sharing information. That fits this use because the request deals with services that let people or systems exchange information over distance.
Why Pilots Care
Pilots don't typically file or use a TSR, but recognizing the term helps when reading FAA documents or NOTAMs that reference upcoming changes to a communications service that could affect operations.
Intuition Check
TSR is not a request a pilot makes over the radio for help or service. Here it means an administrative request for communication services.
Example Sentence 1
The facility submitted a TSR to add a new dedicated line between the tower and the approach control facility.
Example Sentence 2
After the power outage, a TSR was submitted to restore the primary voice line to the tower.