The requirements of this Part aim at the simplification of inspection, servicing, replacement of components and repair by Service personnel in order to reduce the time, effort and cost spent in maintaining the aeroplane in an airworthy condition, thereby increasing its operational effectiveness.

The aeroplane and its equipment shall be designed to reduce to a minimum the need for servicing or inspection other than the need to replenish consumable stores. (para 2 below).

Routine servicing, adjustments, lubrication, repairs and replacements of component parts shall be possible with ease, using, as far as possible, standard tools and equipment and with the minimum of manhours and without need for access equipment. (para 2 below).