Definition
The act of meeting the requirements of an applicable regulation, manufacturer instruction, airworthiness directive, or maintenance specification. In aviation maintenance, compliance means a required action has been performed in the manner, time interval, and conditions specified, and that the work has been properly documented and signed off.
Plain English
Doing exactly what the rules or instructions say must be done — and being able to show, in writing, that it was done correctly and on time.
Context Anchor
Seen in maintenance records, inspections, aircraft logbooks, and discussions about whether an aircraft is legal and ready to fly.
Derivation
From the Latin 'complere,' meaning 'to fill up' or 'to fulfill.' In maintenance, you 'fill' the requirement by completing every specified step.
Why Pilots Care
Non-compliance can render the aircraft unairworthy and expose the operator to legal and safety consequences.
Intuition Check
Compliance does not just mean “trying to follow the rules.” In aviation maintenance, it means the required item actually meets the rule or instruction.
Example Sentence 1
The mechanic signed the logbook entry to show compliance with the airworthiness directive on the fuel pump.
Example Sentence 2
Before departure the pilot confirmed that all scheduled maintenance compliance items were signed off.