14 C.F.R. § 121.561 Reporting potentially hazardous meteorological conditions and irregularities of ground and navigation facilities.
Title 14 - Aeronautics and Space
(a) Whenever he encounters a meteorological condition or an irregularity in a ground or navigational facility, in flight, the knowledge of which he considers essential to the safety of other flights, the pilot in command shall notify an appropriate ground station as soon as practicable. (b) The ground radio station that is notified under paragraph (a) of this section shall report the information to the agency directly responsible for operating the facility.
Title 14: Aeronautics and Space
PART 121—OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS
Subpart T—Flight Operations
§ 121.561 Reporting potentially hazardous meteorological conditions and irregularities of ground and navigation facilities.
