The facilities were vandalised during the recent general election forcing the airline to suspend flights.
PNG Air said it conducted a trial flight recently to review the situation and inspect the repairs carried out by the Milne Bay government.
The airline is now discussing with various parties outstanding issues which need to be resolved before full commercial operations can resume.
"We are confident that the airstrip is operational and poses no safety risk to our crew, passengers or aircraft," chief commercial officer Paul Abbot said.
"But we still require support and reassurance that the situation on the island has stabilised and there will not be a repeat of the unfortunate occurrences in July.
"In addition, the terminal requires work to bring it up to an acceptable standard for our passengers.
"With the cooperation of the provincial authorities and the government member for the local area, we are hopeful that flights will be able to resume reasonably soon," Abbot said.