Turkish airline Onur Air has held talks with Dutch officials to try to end an airport ban over its safety record that has left some 40,000 people grounded.
Onur Air deny all the allegations against the company
The airline has been suspended from taking off and landing by four European countries for alleged safety breaches.
Onur Air denies that its airplanes fail to meet required safety standards and says the ban is unfair.
France, the Netherlands, Switzerland and Germany have all stopped Onur Air's planes landing or taking off.
An Onur Air spokesman said the talks with Dutch aviation authorities were continuing.
Hendrik Dek, of the Dutch transport ministry, said each country was to have separate talks with the airline, according to AFP.
Onur Air was grounded late last week by the Dutch authorities, who say they will not allow the airline to pass through the country's airports until it tightens security standards.
The move was then followed by German, Swiss and French authorities.
The airline denies all the allegations and says it will begin legal action unless a full explanation is provided for the ban.
"The security reasons cited are unjustified," the airline's vice-president, Shabettin Bolukcu, has said, according to Reuters.
"We would never allow any plane that had the slightest fault to fly."
Onur Air, in operation since 1992, is a low-cost airline operating 26 planes and transporting some 1.4 million passengers per year.