Document ID: chunk:federal_register_of_legislation:F2015C00263:body:0:p23
Version: federal_register_of_legislation:F2015C00263
Segment Type: other
Provision Reference: 
Character Range: 59733–62478

A rating also permits the AMO to provide maintenance services for specialist maintenance that is covered by the category A rating. Category A class ratings are subdivided into base or line maintenance and the AMO may be approved for either base or line maintenance or both.
      6 The category B rating means that the AMO may provide maintenance services that involve carrying out maintenance on an aeronautical product that is an engine or an Auxiliary Power Unit (APU), in accordance with maintenance data for the engine and the APU. A B rating also permits the AMO to provide maintenance services for specialist maintenance that is covered by the category B rating.
      7 The category C rating means that the AMO may provide maintenance services that involve carrying out maintenance on an aeronautical product other than an engine and an APU, in accordance with the maintenance data for the aeronautical product. A category C rating also permits the AMO to provide maintenance services for specialist maintenance that is covered by the category C rating.
      8 The category D rating means that the AMO may provide maintenance services for specialist maintenance on an aircraft or an aeronautical product without holding a category A rating for aircraft maintenance or a category B or C rating for aeronautical product maintenance.
      9 Carrying out maintenance on an aircraft and carrying out maintenance on an aeronautical product have the meanings given by Part 3 of the CASR 1998 Dictionary.
      10 The limitations section of the approval certificate is intended to give CASA maximum flexibility to customise the approval to a particular AMO. The limitations section of Table 1 describes the possible forms of limitations that CASA may apply to each rating to customise the approval for a particular AMO. In some cases, CASA may limit an organisation's approval rating to particular types of maintenance. For example, a rating A may be limited to avionic systems maintenance only or a rating B1 may be limited to maintenance other than complete overhaul of the engine.
      11 Where the limitations sections in Table 1 and Table 2 make reference to series, model and group for A and B ratings, they have the following meaning:
(a) series means a series of models with similar design covered by a single type certificate such as Boeing 737 series aircraft which include B737-300, 400, 500, 600, 700, 800 and 900 etc. or GE CF6-80 engines which include all CF6‑80A and CF6-80C2 models etc.
(b) model means a specific model of aircraft or engine as designated in the type certificate such as Airbus A320-231 aircraft or IAE V2500-A1 engine.
(c) group means group of aircraft or engines from the same manufacturer or having similar