H25.3 Content

The contents of the manual or manuals must be prepared in a language acceptable to the Agency. The Instructions for Continued Airworthiness must contain the following manuals or sections, as appropriate, and information:

(a)Aeroplane maintenance manual or section

(1)Introduction information that includes an explanation of the aeroplane’s features and data to the extent necessary for maintenance or preventive maintenance.

(2)A description of the aeroplane and its systems and installations including its engines, propellers, and appliances.

(3)Basic control and operation information describing how the aeroplane components and systems are controlled and how they operate, including any special procedures and limitations that apply.

(4)Servicing information that covers details regarding servicing points, capacities of tanks, reservoirs, types of fluids to be used, pressures applicable to the various systems, location of access panels for inspection and servicing, locations of lubrication points, lubricants to be used, equipment required for servicing, tow instructions and limitations, mooring, jacking, and levelling information.

(b)Maintenance Instructions

(1)Scheduling information for each part of the aeroplane and its engines, auxiliary power units, propellers, accessories, instruments, and equipment that provides the recommended periods at which they should be cleaned, inspected, adjusted, tested, and lubricated, and the degree of inspection, the applicable wear tolerances, and work recommended at these periods. However, reference may be made to information from an accessory, instrument or equipment manufacturer as the source of this information if it is shown that the item has an exceptionally high degree of complexity requiring specialized maintenance techniques, test equipment, or expertise. The recommended overhaul periods and necessary cross references to the Airworthiness Limitations section of the manual must also be included. In addition, an inspection programme that includes the frequency and extent of the inspections necessary to provide for the continued airworthiness of the aeroplane must be included.

(2)Troubleshooting information describing probable malfunctions, how to recognise those malfunctions, and the remedial action for those malfunctions.

(3)Information describing the order and method of removing and replacing products and parts with any necessary precautions to be taken.

(4)Other general procedural instructions including procedures for system testing during ground running, symmetry checks, weighing and determining the centre of gravity, lifting and shoring, and storage limitations.

(c)Diagrams of structural access plates and information needed to gain access for inspections when access plates are not provided.

(d)Details for the application of special inspection techniques including radiographic and ultrasonic testing where such processes are specified.

(e)Information needed to apply protective treatments to the structure after inspection.

(f)All data relative to structural fasteners such as identification, discard recommendations, and torque values.

(g)A list of special tools needed.