Definition
A computerized system used to track, manage, and coordinate the movement, storage, and availability of parts, supplies, and equipment needed to support aviation operations and maintenance.
Plain English
A computer system that keeps track of what parts and supplies are on hand, where they are, and how they get moved around to where they're needed.
Context Anchor
Seen in FAA acronym lists and in airport, airline, maintenance, or support-operations discussions rather than normal cockpit control use.
Derivation
Logistics comes from the French logistique, meaning the practical organization of moving and supplying things. Inventory comes from the Latin inventarium, a list of things found or on hand. Together, the term describes a system that handles both the moving and the counting of supplies.
Why Pilots Care
Aircraft availability depends on parts being in the right place at the right time. When an LIS works well, maintenance delays drop and aircraft return to service faster.
Intuition Check
LIS is not a flight instrument, navigation aid, or cockpit procedure. In this context, it refers to a support system for managing parts, supplies, and equipment.
Example Sentence 1
The maintenance team checked the LIS to confirm the replacement part was already in stock at the hangar.
Example Sentence 2
Flight operations reviewed the LIS to confirm that all required survival equipment was stocked for the season.