AMTStandards.orgAviation maintenance

Licensed empty weight

Basic empty weight not including full engine oil, just undrainable oil.

Helicopter Flying Handbook, p. G-4

Also defined in 1 more source

The empty weight that consists of the airframe, engine(s), unusable fuel, and undrainable oil plus standard and optional equipment as specified in the equipment list. Some manufacturers used this term prior to GAMA standardization.

Pilot's Handbook of Aeronautical Knowledge, p. G-17