Definition
Printed or digital reference material that describes how to inspect, service, repair, and overhaul an aircraft and its components. It includes manufacturer service manuals, airworthiness directives, service bulletins, parts catalogs, and FAA advisory material used by maintenance technicians and instructors.
Plain English
The written instructions and reference documents that tell mechanics how to look after an aircraft properly.
Context Anchor
Seen in aircraft manuals, inspection requirements, aircraft records, and training discussions about whether an aircraft is ready to be flown.
Derivation
From Latin manu tenere, 'to hold in the hand,' meaning to keep or look after. 'Data' simply means recorded information. Together: the recorded information needed to keep an aircraft in good condition.
Why Pilots Care
Incomplete or missing maintenance data can render an aircraft unairworthy and prevent legal flight.
Intuition Check
Do not read maintenance data as just “notes about repairs.” In aviation, it means the technical information used to determine what maintenance is needed, how it should be done, or whether the aircraft meets the required condition for flight.
Example Sentence 1
The instructor pulled the relevant maintenance data from the manufacturer's service manual before demonstrating the inspection procedure.
Example Sentence 2
The mechanic updated the maintenance data after completing the annual inspection to keep the aircraft legal for flight.