90. Power to amend a licence issued under section 85, 87, or 89 of this Act

Where appropriate, the Authority may upon a request made in that behalf by the holder of an Aerial Work

The Authority may at any time at its own discretion, where it considers it necessary in the interest of national security, safety of air navigation or for the purpose of ensuring fair competition, amend an Aerial Work Licence, an Airline Licence, or a Foreign Airline Licence, as the case may be, issued under section 85, 87 or 89 of this Act, by the incorporation of any additional conditions or limitations to such licence.