Aviation Mechanic - General, Airframe, and Powerplant › I. General › Task C. Weight and Balance

AM.I.C.S2

Skill

Perform weight and balance calculations.

Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - General p. 6-4
Chapter 6: Aircraft Weight & Balance › Weight & Balance Terminology › Empty Weight Center of Gravity (EWCG)
determine its EWCG. All other weight and balance calculations, including loading the aircraft for flight, performing an equipment change calculation, and performing an adverse condition check, begin with knowing the empty weight and EWCG. This crucial information is part…
Aircraft Weight and Balance Handbook p. 1-3
Chapter 1: Weight and Balance Control › Weight Changes
newly calculated EWCG should happen to fall outside the EWCG range, it is necessary to perform an adverse-loading check. This requires a forward and rearward adverse-loading check and a maximum weight check. These weight and balance extreme conditions…
Aviation Maintenance Technician Handbook - General p. 6-21
Chapter 6: Aircraft Weight & Balance › Example Calculation After an Equipment Change
alteration is performed, the new empty weight and EWCG must be determined. This can be accomplished by placing the aircraft on scales and weighing it, or by mathematically calculating the new weight and balance. The mathematical calculation is acceptable…