Mangos was terminated on December 4, 2015.
His lawyer has since filed an application at the National Court seeking he remain on the PNG Power payroll as they says his termination was not on direction of the National Executive Council.
The matter returned to the Waigani National Court today where his lawyer, Mal Varitimos told the court his client was appointed by the NEC as the Executive Director of PPL and appointments of the NEC can only be revoked by the NEC itself.
Varitimos said his client is not seeking damages as he has an arguable case before the court.