Definition
An FAA-issued certificate confirming that a particular aircraft design (the type) meets the airworthiness standards required for that category of aircraft. It approves the design itself, not an individual aircraft.
Plain English
An official FAA approval that says a specific aircraft design is safe and meets the rules. It covers the design, so every aircraft built to that design starts out approved.
Context Anchor
Seen in FAA certification discussions, especially when learning how aircraft designs and individual aircraft are approved for legal operation.
Derivation
‘Airworthiness’ combines ‘air’ with ‘worthiness’ (fit or suitable) — fit to operate in the air. ‘Type’ refers to the specific aircraft model or design. So the phrase literally means a certificate confirming a particular design is fit to fly.
Why Pilots Care
It confirms the aircraft design has passed required safety testing, reducing the risk of structural or systems failures during flight.
Intuition Check
Do not read this as the same thing as the airworthiness certificate in the aircraft. The type certificate approves the design; the airworthiness certificate applies to the individual aircraft.
Example Sentence 1
Before the manufacturer could begin delivering the new trainer, the FAA had to issue an airworthiness type certificate for the design.
Example Sentence 2
Pilots can check the airworthiness type certificate data sheet to confirm approved modifications for their aircraft model.