Definition
AC Form 8050-3 is the official FAA document that records the registration of a civil aircraft to its owner. It is issued by the FAA Civil Aviation Registry once an aircraft has been properly registered, and it must be carried in the aircraft at all times during flight as evidence of valid U.S. registration.
Plain English
It is the paper certificate the FAA gives the aircraft owner to prove the aircraft is officially registered in the United States. A copy must be kept in the aircraft whenever it flies.
Context Anchor
Seen in aircraft paperwork discussions and in the required documents that must be carried in the aircraft before flight.
Derivation
The 'AC' prefix stands for 'Aircraft.' FAA forms use a numbering system where 8050-series forms relate to aircraft registration matters. Knowing the 'AC' simply identifies it as an aircraft-related FAA form helps the pilot recognize it among other paperwork.
Why Pilots Care
A pilot must have this form or a copy available to demonstrate that the aircraft is legally registered; operating without it violates FAA regulations.
Intuition Check
Do not confuse registration with airworthiness. AC Form 8050-3 shows who the aircraft is registered to; it does not say the aircraft is mechanically safe to fly.
Example Sentence 1
During preflight, the pilot confirmed that AC Form 8050-3 was in the document pouch along with the airworthiness certificate.
Example Sentence 2
The new owner received AC Form 8050-3 from the FAA after completing the registration process.