Sending out equipment for rectification to the outside agency

To describe a standard operating procedure for sending out equipment for rectification to the outside agency. The standard operating procedure describes in detail the method of sending out equipment for rectification to the outside agency.
The responsibility of sending out the equipment lies with the staff of rank not lower than the maintenance engineer.
The responsibility of preparing, reviewing and approving the standard operating procedure lies with the Manager - Maintenance, Head of Production and Head of QAD respectively.   
Rectification, Sending out equipment, Engineering