Definition
Relating to the load-carrying framework of an aircraft — the parts that give it shape and strength and that transmit flight, ground, and inertia loads through the airframe.
Plain English
Having to do with the parts of the aircraft that hold it together and carry the loads acting on it.
Context Anchor
Seen in aircraft inspections, maintenance records, repair discussions, and reports of damage such as cracks, bends, or dents.
Derivation
From Latin 'structura,' meaning a building or arrangement of parts. In aviation it refers to anything belonging to the airframe's load-bearing arrangement, not just the outer shell.
Why Pilots Care
Structural damage — even when it looks minor — can compromise an aircraft's ability to handle flight loads. Pilots must distinguish between cosmetic issues and structural ones during preflight, because the second grounds the aircraft until a qualified mechanic signs it off.
Intuition Check
Structural does not just mean “important” or “well organized.” In aviation, it means connected to the physical parts that carry forces and help keep the aircraft strong.
Example Sentence 1
The mechanic found structural damage to the wing spar and grounded the aircraft pending repair.
Example Sentence 2
Cosmetic dents on the skin were acceptable, but any structural damage required grounding the aircraft.