1 Perform task “PMA01: Stop and secure Antenna System” (p. 37).
2 Check the earth bonding link
between the ship's earth and the 
earth stud on the SAP, for any signs 
of damage or corrosion (see fig. 
3.29). 
3 Check the earth bonding link
between the roll frame and the main frame, for any signs of damage or corrosion (see fig. 3.30). 
4 Check the earth bonding link
between the pitch frame and the roll frame, for any signs of damage or corrosion (see fig. 3.31).