Definition
An aircraft inspection performed at regular, scheduled intervals — based on calendar time, flight hours, or operating cycles — to verify continued airworthiness and identify wear, damage, or defects before they affect safety.
Plain English
A routine check of the aircraft done on a set schedule, to catch problems early and keep the aircraft safe and legal to fly.
Context Anchor
You will see this term in aircraft maintenance records, inspection requirements, and discussions about whether an aircraft is allowed to fly.
Derivation
From the Greek 'periodos,' meaning a circuit or recurring cycle. The word emphasizes that these inspections happen on a repeating schedule rather than only when something seems wrong.
Why Pilots Care
Compliance keeps the aircraft legally airworthy and reduces the chance of in-flight mechanical problems.
Intuition Check
Do not read “periodic” as “once in a while.” In aviation maintenance, it means tied to a defined interval. Do not read “inspection” as a casual look-over; it is a formal maintenance check that must be recorded.
Example Sentence 1
Before the flight, the pilot checked the logbooks to confirm the annual periodic inspection was current.
Example Sentence 2
The pilot checked the logbooks to confirm the next periodic inspection was due before the annual due date.