Section R. 408.15914 - Briefings; visibility; fires; energized lines or equipmentRule 5914.
(1) Briefing shall be conducted prior to each day's operation and shall set forth the plan of operation for the pilot in command and ground employees.(2) The employer shall insure that, when visibility is reduced by dust or other conditions, ground employees are instructed to exercise special caution to keep clear of the main and stabilizing rotors. The employer shall also eliminate, as far as practical, the dust or other conditions reducing the visibility.(3) Open fires shall not be permitted in areas where they may be spread by the rotor downwash.(4) A helicopter, or any part of a helicopter, shall maintain the clearances prescribed in table 1 from any energized line or equipment, unless the owner or operator of the line assures that the line is deenergized and visibly grounded. TABLE 1
| Voltage | Clearance |
| 50 kilovolts or less | 15 feet |
| More than 50 kilovolts | 15 feet plus .4 inch per each kilovolt over 50 kilovolts |
Mich. Admin. Code R. 408.15914
1954 ACS 88, Eff. July 16, 1976; 1979 AC