Document ID: chunk:federal_register_of_legislation:F2013C00881:body:0:p2
Version: federal_register_of_legislation:F2013C00881
Segment Type: other
Provision Reference: 
Character Range: 2777–6085

applicant who fails an examination may be permitted to attempt the written examination again. The Director reserves the right to determine a minimum period prior to the applicant's further examination and, where considered necessary, require evidence that the applicant has received additional training of a nature acceptable to the Director.

5 Issue of authority
       5.1An aircraft weight control authority will be issued to an applicant who has complied with the requirements of this Order.
       5.2The Director may issue an authority endorsed with such limitations as he considers necessary.

6 Period of validity
       6.1An aircraft weight control authority is valid for a period of 2 years.

7 Renewal of authority
       7.1Application for the renewal of an aircraft weight control authority must be made on Form 359, and an authority issued without further examination, provided the holder produces acceptable evidence that he or she has maintained proficiency and familiarity with the methods of aircraft weight control applicable to the authority held.
Appendix I

Syllabus for aircraft weight control authority

1 General
       1.1Documents — Relevant Civil Aviation Orders; Aircraft Weighing Summary; Flight Manuals; Load Data Sheets; Loading Systems; Certificates of Airworthiness; Aircraft Manufacturer's data relative to weight control and preparation of aircraft for weighing; Record of Alterations.
       1.2Weight Control Officer — responsibilities and privileges — preparation and approval of loading data — procedure for amendment of flight manual loading information.
       1.3Terms — datum; empty weight, operating weight, maximum take-off weight, ramp weight, maximum landing weight, zero fuel weight; specific gravity; loading system; fixed equipment, removable equipment; centre of gravity, centre of gravity limits; mean aerodynamic chord; unusable fuel and oil.
       1.4Principles and purpose of weight control; periodic reweighing of aircraft.
       1.5 The Principle of Moments — arm; moment; moment index; constant.
       1.6Conversion Factors — Imperial to SI units, for length and mass; Imperial and USA to SI units, for liquid volume.

2 Equipment and control
       2.1Plumb-bobs and levels — uses and serviceability checks.
       2.2Scales — types; accuracy, repeatability and calibration requirements; precautions during transport and operation.
       2.3Preparation of aircraft — jacking and slinging, fuel tank draining procedure and fire precautions; equipment lists.
       2.4Consecutive and independent weighing requirements; permissible discrepancies between weighings, factors that affect accuracy of weighing.

3 Weight and balance calculations
       3.1Basic principles of calculations involving plus and minus quantities.
       3.2Empty weight — method of determination; typical deductions and additions; standard weights for engine fuel, oil, passengers and crew.
       3.3Moment index — calculations for weights fore and aft of datum.
       3.4Empty weight c.g. — method of determination; conversion of c.g. position expressed in distance from datum, to a percentage of M.A.C. and vice versa.
       3.5Compilation of Aircraft Weighing Summary and Load Data Sheet.

4 Weight and balance extreme conditions
       4.1Determination of weight