Unit of competency Outline

Date retreived
22/07/2026 4:08 PM AWST

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Weigh aircraft and perform aircraft weight and balance calculations as a result of modifications

Weigh aircraft and perform aircraft weight and balance calculations as a result of modifications

Unit of competency
National Code
MEA325B
State Code
W8424
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
2.00
Current Release Date
23/01/2012
View on TGA
State Implementation and Classification
Approved Date
10/05/2012
Field of Education
031501 - Aerospace Engineering
Original Release Date
10/05/2012
Nominal Hours
40
Description
This unit covers competencies required to progress from an Aircraft Maintenance Engineer at Certificate IV to the granting of a chosen Aircraft Maintenance Engineer Licence under CASR Part 66, in accordance with the licensing provisions in Section 3, Assessment Guidelines.The skills and knowledge covered by the units of competency listed in the MEA11 Aeroskills Training Package for Aircraft Maintenance Engineer (Avionics or Mechanical as applicable) at Certificate IV are prerequisite to the attainment of the elements of competency specified in this unit. This includes full coverage of the CASR Part 66 Syllabus subjects/topics listed in Section 3.
Notes
Elements and Performance Criteria
1. Weigh aircraft
  • 1.1. The requirement for aircraft weighing is determined
  • 1.2. Aircraft is weighed in accordance with the specified procedure
  • 1.3. Aircraft weighing results are provided to the CAMO
2. Calculate the weight and balance impact of a modification
  • 2.1. The new empty weight of the aircraft is determined and it is ensured that the weight is within the predetermined limits set by the CAMO
  • 2.2. The new empty weight centre of gravity of the aircraft is calculated and it is ensured that the centre of gravity is within the predetermined limits set by the CAMO
  • 2.3. Maintenance records are updated with new figures
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Centre of gravity calculation
Centre of gravity of the aircraft is calculated:
using the results obtained by weighing an aircraft
using the weight and moment arm data for a modification
Application
Application of this unit may relate to:
scheduled or unscheduled maintenance activities
individual activities or supervision of other personnel
Procedures and requirements
Refer to industry standard procedures specified by manufacturers, regulatory authorities or the enterprise

The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment
A person who demonstrates competency in this unit must be able to determine the requirement to weigh an aircraft, weigh it using a specified method and use the results to calculate centre of gravity. Safety precautions applicable to the weighing method involved are to be fully observed.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
The underlying skills inherent in this unit should be transferable across a range of aircraft types. Ability to interpret the instructions for configuring and weighing aircraft is critical.
Evidence of transferability of skills and knowledge related to weighing of aircraft and calculation of centre of gravity is essential. The aircraft weighing work plan should take account of applicable safety and quality requirements in accordance with the industry and regulatory standards, especially in relation to aircraft jacking and levelling.
A person cannot be assessed as competent until it can be demonstrated to the satisfaction of the workplace assessor that the relevant elements of the unit of competency are being achieved under supervision without intervention. This shall be established via simulated activities at the CASR Part 147 MTO and performance during observed workplace activities.
Context of and specific resources for assessment
Competency may be assessed in the workplace or in the training environment.
Method of assessment

Guidance information for assessment