14 C.F.R. § 135.67 Reporting potentially hazardous meteorological conditions and irregularities of communications or navigation facilities.
Title 14 - Aeronautics and Space
Whenever a pilot encounters a potentially hazardous meteorological condition or an irregularity in a ground communications or navigational facility in flight, the knowledge of which the pilot considers essential to the safety of other flights, the pilot shall notify an appropriate ground radio station as soon as practicable. [Doc. No. 16097, 43 FR 46783, Oct. 1, 1978, as amended at Amdt. 135–1, 44 FR 26737, May 7, 1979]
Title 14: Aeronautics and Space
PART 135—OPERATING REQUIREMENTS: COMMUTER AND ON DEMAND OPERATIONS AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT
Subpart B—Flight Operations
§ 135.67 Reporting potentially hazardous meteorological conditions and irregularities of communications or navigation facilities.