Definition
An official approval, signed off by an authorized mechanic or repair facility, certifying that an aircraft, engine, propeller, appliance, or component has been inspected, repaired, or altered in accordance with approved data and is airworthy and ready for flight operations.
Plain English
A formal sign-off that says the aircraft (or part) has been fixed or inspected properly and is now legal and safe to fly again.
Context Anchor
Seen in aircraft maintenance records, logbooks, inspection signoffs, and repair documentation.
Why Pilots Care
A valid return to service confirms the aircraft is legally airworthy, protecting safety and regulatory compliance before any flight.
Intuition Check
Return to service does not just mean “put it back” or “start using it again.” In aviation maintenance, it means an authorized approval has been made and recorded before the aircraft or part may be operated.
Example Sentence 1
After the annual inspection was completed, the mechanic made a logbook entry returning the aircraft to service.
Example Sentence 2
The owner could not schedule the cross-country flight until the aircraft received its return to service after the propeller overhaul.