FAA Part 107 Remote Pilot (UAG)OperationsEasy
During a Part 107 flight, a remote pilot in command briefly raises binoculars to positively identify a distant aircraft, then immediately resumes unaided visual scanning of the operating area. Does this comply with the visual line of sight requirement in 14 CFR 107.31?
- AYes, momentary use of vision-aiding devices to enhance situational awareness is allowed
- BNo, because binoculars automatically disqualify the flight from being VLOS
- CYes, but only if a visual observer is also using the same type of device
- DNo, vision-aiding devices may never be used during sUAS operations
Show answer & explanationAnswer & explanation
Correct answer: A. Yes, momentary use of vision-aiding devices to enhance situational awareness is allowed
14 CFR 107.31 requires the remote pilot or visual observer to see the sUAS with vision unaided by any device other than corrective lenses, except that momentary use of a vision-aiding device (such as binoculars) to enhance situational awareness is permitted.
Why the other options are wrong
- B. Brief, momentary use does not disqualify the operation.
- C. A visual observer is not required to use the same device for the momentary-use exception to apply.
- D. Momentary use is specifically permitted by the rule.
Visual Line of Sight (107.31)
The remote PIC, VO, and person manipulating controls must be able to see the sUAS with unaided vision, with only momentary exceptions for vision-aiding devices.
- Corrective lenses/contacts are always allowed
- Binoculars/FPV goggles may be used only momentarily
- Continuous use of FPV as sole means of VLOS violates 107.31
Memory trick: See it with your own eyes—glasses are fine, binoculars are a quick peek only.