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Preflight check of control links

Remote Pilot (Part 107) practice question 8 of 17 on Operations / Maintenance and Inspection. ACS element UA.V.F.K3 · difficulty: recall. Want to answer it in a timed quiz? Use the Remote Pilot (Part 107) practice mode.

Question bank updated 2026-09-22

QUESTIONUnder § 107.49(c), what must the remote pilot in command ensure about the control links between the ground control station and the small unmanned aircraft prior to flight?

  1. AThat they have been registered with the FAA
  2. BThat they operate on a frequency assigned by ATC
  3. CThat they are working properly
Show the answer and explanation

Correct answer: C. That they are working properly

  • A — incorrect Part 107 registers aircraft, not control links; § 107.49(c) concerns whether the links are working properly.
  • B — incorrect ATC does not assign control-link frequencies; the preflight requirement is that the links work properly.
  • C — correct § 107.49(c) requires the remote pilot in command to ensure that all control links between ground control station and the aircraft are working properly.

BACKGROUND

Section 107.49 lists the actions the remote pilot in command must take prior to flight. Paragraph (c) requires ensuring that all control links between the ground control station and the small unmanned aircraft are working properly. The control link is the connection through which the control station commands the aircraft, so a failed or degraded link can lead to loss of control. Checking the link before takeoff is the regulation's stated technique for mitigating failure of the devices used to operate the small unmanned aircraft system (sUAS).

STUDY TIP

Group the § 107.49 items as a preflight list: environment, crew briefing, control links, power, attached objects, and category eligibility for operations over people.

KEY POINTS

  • § 107.49(c) covers the control links between ground control station and aircraft.
  • The remote pilot in command must ensure all links are working properly before flight.
  • This is a preflight action, not a registration or frequency-assignment requirement.

SOURCES

  • 14 CFR 107.49(c)
Practice the Remote Pilot (Part 107) test →Timed 60-question exam, by ACS area, or review your misses. Free.
MORE ON OPERATIONS / MAINTENANCE AND INSPECTION

SkyDrill is not affiliated with the FAA. This is an original practice item based on 14 CFR part 107, 14 CFR part 89, and the FAA Remote Pilot – Small UAS Study Guide (FAA-G-8082-22). Regulations and handbooks are revised; confirm details against the current edition.