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AVIATION KNOWLEDGE CENTER

Learn to Fly & Aviation Intelligence

Whether pursuing a private pilot license (PPL), preparing for an airline ATPL career, or seeking deep clarity on EASA flight regulations, AIR provides authoritative aviation intelligence.

Featured Aviation Explainers

REGULATORY

What is an Air Operator Certificate (AOC)?

An AOC is the official aviation license issued by a National Civil Aviation Authority (such as EASA or AACR) that authorizes a company to perform commercial air transport operations.

SOURCE: EASA Regulation (EU) No 965/2012 on Air Operations
OPERATIONS

What is a Fixed-Base Operator (FBO)?

An FBO is a specialized commercial terminal facility located at an airport that provides ground handling, VIP lounges, fueling, hangarage, and concierge services for business aviation.

SOURCE: IBAC International Standard for Business Aircraft Handling (IS-BAH)
OPERATIONS

What is PPR (Prior Permission Required) & Slot Coordination?

PPR and Airport Slots are operational restrictions enforced by airports to manage ramp space, runway capacity, noise abatement, and customs clearance schedules.

SOURCE: IATA Worldwide Airport Slots Guidelines (WASG)
COMMERCIAL

What is an Empty Leg Flight?

An Empty Leg (or repositioning flight) occurs when a private aircraft flies without passengers to return to its home base or position for a booked charter mission.

SOURCE: EBAA European Business Aviation Association Charter Guide