145.A.20 Terms of approval and scope of work

The following table identifies the ATA Specification 2200 chapter for the category C component rating. If the maintenance manual (or equivalent document) does not follow the ATA chapters, the corresponding subjects still apply to the applicable C rating.

<table>

<tr>

<td>CLASS</td>

<td>RATING</td>

<td>ATA CHAPTERS</td>

</tr>

<tr>

<td rowspan="23">COMPONENTS OTHER THAN COMPLETE ENGINES OR APUs</td>

<td>C1 Air Cond &amp; Press</td>

<td>21</td>

</tr>

<tr>

<td>C2 Auto Flight</td>

<td>22</td>

</tr>

<tr>

<td>C3 Comms and Nav</td>

<td>23 – 34</td>

</tr>

<tr>

<td>C4 Doors — Hatches</td>

<td>52</td>

</tr>

<tr>

<td>C5 Electrical Power &amp; Lights</td>

<td>24 – 33 – 85</td>

</tr>

<tr>

<td>C6 Equipment</td>

<td>25 – 38 – 44 – 45 – 50</td>

</tr>

<tr>

<td>C7 Engine – APU</td>

<td>49 – 71 – 72 – 73 – 74 – 75 – 76 – 77 – 78 – 79 – 80 – 81 – 82 – 83</td>

</tr>

<tr>

<td>C8 Flight Controls</td>

<td>27 – 55 – 57.40 – 57.50 –57.60 – 57.70</td>

</tr>

<tr>

<td>C9 Fuel</td>

<td>28 – 47</td>

</tr>

<tr>

<td>C10 Rotorcraft — Rotors</td>

<td>62 – 64 – 66 – 67</td>

</tr>

<tr>

<td>C11 Rotorcraft — Trans</td>

<td>63 – 65</td>

</tr>

<tr>

<td>C12 Hydraulic Power</td>

<td>29</td>

</tr>

<tr>

<td>C13 Indicating/Recording Systems</td>

<td>31 – 42 – 46</td>

</tr>

<tr>

<td>C14 Landing Gear</td>

<td>32</td>

</tr>

<tr>

<td>C15 Oxygen</td>

<td>35</td>

</tr>

<tr>

<td>C16 Propellers</td>

<td>61</td>

</tr>

<tr>

<td>C17 Pneumatic &amp; Vacuum</td>

<td>36 – 37</td>

</tr>

<tr>

<td>C18 Protection ice/rain/fire</td>

<td>26 – 30</td>

</tr>

<tr>

<td>C19 Windows</td>

<td>56</td>

</tr>

<tr>

<td>C20 Structural</td>

<td>53 – 54 – 57.10 – 57.20 – 57.30</td>

</tr>

<tr>

<td>C21 Water Ballast</td>

<td>41</td>

</tr>

<tr>

<td>C22 Propulsion Augmentation</td>

<td>84</td>

</tr>

<tr>

<td>C23 Others</td>

<td></td>

</tr>

</table>

The rating for an organisation approved for the maintenance of an electric engine that powers a propeller/rotor to generate thrust and/or lift for the aircraft should be B4, rather than C5.

C23 should be used as component rating when C1 to C22 or the corresponding ATA chapters are not adequate for the component; for instance, in case of innovative aircraft architectures/systems.

Facilities such as stores, line stations, component or subcontractors workshops that are not located together with the main facilities of the organisation may be covered by the organisation approval without being identified on the organisation certificate, provided that the MOE identifies these facilities and contains procedures to control such facilities, and the competent authority is satisfied that they form an integral part of the approved maintenance organisation.