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2. Modularisation
Available versions for ERULES-1963177438-583
Regulation (EU) 2023/989
found in: Continuing Airworthiness (1321/2014) Part-M Part-145 Part-66 Part-147 Part-T Part-ML Part-CAMO Part-CAO (Jul 2024)
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2. Modularisation Regulation (EU) 2023/989 Qualification on basic subjects for each aircraft maintenance licence category or subcategory shall be in accordance with the following matrix, where applicable subjects are indicated by an ‘X’, while ‘n/a’ means that the subject module is neither applicable nor required. <table border="1" cellpadding="0" cellspacing="0" width="612"><tr><td rowspan="2" width="140"><p><b>Subject module</b></p></td><td valign="top" width="66"><p align="center">B1.1 </p><p align="center">A1</p></td><td valign="top" width="66"><p align="center">B1.2 </p><p align="center">A2</p></td><td valign="top" width="66"><p align="center">B1.3 </p><p align="center">A3</p></td><td valign="top" width="66"><p align="center">B1.4 </p><p align="center">A4</p></td><td valign="top" width="85"><p align="center">B3</p></td><td rowspan="2" valign="top" width="38"><p align="center">B2</p></td><td rowspan="2" valign="top" width="38"><p align="center">B2L</p></td><td rowspan="2" valign="top" width="47"><p align="center">C</p></td></tr><tr><td width="66"><p><b>Turbine engine</b></p></td><td width="66"><p><b>Piston engine</b></p></td><td width="66"><p><b>Turbine engine</b></p></td><td width="66"><p><b>Piston engine</b></p></td><td valign="top" width="85"><p><b>Piston-engine non- pressurised aeroplanes MTOM ≤ 2 t</b></p></td></tr><tr><td valign="top" width="140"><p><b>1. </b><b>MATHEMATICS</b></p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="85"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="47"><p>X</p></td></tr><tr><td valign="top" width="140"><p><b>2. </b><b>PHYSICS</b></p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="85"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="47"><p>X</p></td></tr><tr><td valign="top" width="140"><p><b>3. </b><b>ELECTRICAL </b></p><p><b>FUNDAMENTALS</b></p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="85"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="47"><p>X</p></td></tr><tr><td valign="top" width="140"><p><b>4. </b><b>ELECTRONICS</b></p><p><b>FUNDAMENTALS</b></p></td><td valign="top" width="66"><p>X</p><p>(n/a for A1)</p></td><td valign="top" width="66"><p>X</p><p>(n/a for A2)</p></td><td valign="top" width="66"><p>X</p><p>(n/a for A3)</p></td><td valign="top" width="66"><p>X</p><p>(n/a for A4)</p></td><td valign="top" width="85"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="47"><p>X</p></td></tr><tr><td valign="top" width="140"><p><b>5. DIGITAL TECHNIQUES/ELECTR-ONIC INSTRUMENT SYSTEMS</b></p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="85"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="47"><p>X</p></td></tr><tr><td valign="top" width="140"><p><b>6. </b><b>MATERIALS AND HARDWARE</b></p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="85"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="47"><p>X</p></td></tr><tr><td valign="top" width="140"><p><b>7. </b><b>MAINTENANCE PRACTICES</b></p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="85"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="47"><p>X</p></td></tr><tr><td valign="top" width="140"><p><b>8. </b><b>BASIC AERODYNAMICS</b></p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="85"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="47"><p>X</p></td></tr><tr><td valign="top" width="140"><p><b>9. </b><b>HUMAN FACTORS</b></p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="85"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="47"><p>X</p></td></tr><tr><td valign="top" width="140"><p><b>10. </b><b>AVIATION LEGISLATION</b></p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="85"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="47"><p>X</p></td></tr><tr><td valign="top" width="140"><p><b>11. </b><b>AEROPLANE AERODYNAMICS, STRUCTURES AND SYSTEMS</b></p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="85"><p>X</p></td><td valign="top" width="38"><p>n/a</p></td><td valign="top" width="38"><p>n/a</p></td><td rowspan="7" valign="top" width="47"><p>11, 15 & 17</p><p>as B1.1</p><p> or</p><p>11, 16 & 17</p><p>as B1.2</p><p> or</p><p>12 & 15</p><p>as B1.3</p><p>or</p><p>12 & 16</p><p>as B1.4 or</p><p>13 & 14</p><p>as B2</p></td></tr><tr><td valign="top" width="140"><p><b>12. </b><b>HELICOPTER </b><b>AERODYNAMICS, STRUCTURES AND SYSTEMS</b></p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="85"><p>n/a</p></td><td valign="top" width="38"><p>n/a</p></td><td valign="top" width="38"><p>n/a</p></td></tr><tr><td valign="top" width="140"><p><b>13. </b><b>AIRCRAFT AERODYNAMICS, STRUCTURES AND SYSTEMS</b></p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="85"><p>n/a</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="38"><p>X</p></td></tr><tr><td valign="top" width="140"><p><b>14. </b><b>PROPULSION</b></p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="85"><p>n/a</p></td><td valign="top" width="38"><p>X</p></td><td valign="top" width="38"><p>X</p></td></tr><tr><td valign="top" width="140"><p><b>15. </b><b>GAS TURBINE ENGINES</b></p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="85"><p>n/a</p></td><td valign="top" width="38"><p>n/a</p></td><td valign="top" width="38"><p>n/a</p></td></tr><tr><td valign="top" width="140"><p><b>16. </b><b>PISTON ENGINE</b></p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="85"><p>X</p></td><td valign="top" width="38"><p>n/a</p></td><td valign="top" width="38"><p>n/a</p></td></tr><tr><td valign="top" width="140"><p><b>17. </b><b>PROPELLER</b></p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>X</p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="66"><p>n/a</p></td><td valign="top" width="85"><p>X</p></td><td valign="top" width="38"><p>n/a</p></td><td valign="top" width="38"><p>n/a</p></td></tr></table>
## 2. Modularisation *Regulation (EU) 2023/989* Qualification on basic subjects for each aircraft maintenance licence category or subcategory shall be in accordance with the following matrix, where applicable subjects are indicated by an ‘X’, while ‘n/a’ means that the subject module is neither applicable nor required. <table bgcolor="#d9d9d9" cellpadding="7" cellspacing="0"> <col/> <col/> <col/> <col/> <col/> <col/> <col/> <col/> <col/> <tr> <td bgcolor="#808080" rowspan="2"><p align="center"> <b>Subject module</b></p> </td> <td bgcolor="#808080" valign="top"><p align="center"> <b>B1.1 </b> </p> <p align="center"><b>A1</b></p> </td> <td bgcolor="#808080" valign="top"><p align="center"> <b>B1.2 </b> </p> <p align="center"><b>A2</b></p> </td> <td bgcolor="#808080" valign="top"><p align="center"> <b>B1.3 </b> </p> <p align="center"><b>A3</b></p> </td> <td bgcolor="#808080" valign="top"><p align="center"> <b>B1.4 </b> </p> <p align="center"><b>A4</b></p> </td> <td bgcolor="#808080" valign="top"><p align="center"> <b>B3</b></p> </td> <td bgcolor="#808080" rowspan="2" valign="top"><p align="center"> <br/> </p> <p align="center"> <br/> </p> <p align="center"> <br/> </p> <p align="center"><b>B2</b></p> </td> <td bgcolor="#808080" rowspan="2" valign="top"><p align="center"> <br/> </p> <p align="center"> <br/> </p> <p align="center"> <br/> </p> <p align="center"><b>B2L</b></p> </td> <td bgcolor="#808080" rowspan="2" valign="top"><p align="center"> <br/> </p> <p align="center"> <br/> </p> <p align="center"> <br/> </p> <p align="center"><b>C</b></p> </td> </tr> <tr> <td bgcolor="#808080"><p align="center"> <b>Turbine engine</b></p> </td> <td bgcolor="#808080"><p align="center"> <b>Piston engine</b></p> </td> <td bgcolor="#808080"><p align="center"> <b>Turbine engine</b></p> </td> <td bgcolor="#808080"><p align="center"> <b>Piston engine</b></p> </td> <td bgcolor="#808080" valign="top"><p align="center"> <b>Piston-engine non- pressurised aeroplanes MTOM ≤ 2 t</b></p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>1. MATHEMATICS</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>2. PHYSICS</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>3. ELECTRICAL </b> </p> <p align="left"><b>FUNDAMENTALS</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>4. ELECTRONICS</b></p> <p align="left"><b>FUNDAMENTALS</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> <p align="center">(n/a for A1)</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> <p align="center">(n/a for A2)</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> <p align="center">(n/a for A3)</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> <p align="center">(n/a for A4)</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>5. DIGITAL TECHNIQUES/ELECTR-ONIC INSTRUMENT SYSTEMS</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>6. MATERIALS AND HARDWARE</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>7. MAINTENANCE PRACTICES</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>8. BASIC AERODYNAMICS</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>9. HUMAN FACTORS</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>10. AVIATION LEGISLATION</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>11. AEROPLANE AERODYNAMICS, STRUCTURES AND SYSTEMS</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9" rowspan="7"><p align="center"> 11, 15 & 17</p> <p align="center"> as B1.1</p> <p align="center"> or</p> <p align="center"> <br/> </p> <p align="center"> 11, 16 & 17</p> <p align="center"> as B1.2</p> <p align="center"> or</p> <p align="center"> <br/> </p> <p align="center"> 12 & 15</p> <p align="center"> as B1.3</p> <p align="center"> or</p> <p align="center"> <br/> </p> <p align="center"> 12 & 16</p> <p align="center"> as B1.4 or</p> <p align="center"> <br/> </p> <p align="center"> 13 & 14</p> <p align="center">as B2</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>12. HELICOPTER AERODYNAMICS, STRUCTURES AND SYSTEMS</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>13. AIRCRAFT AERODYNAMICS, STRUCTURES AND SYSTEMS</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>14. PROPULSION</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>15. GAS TURBINE ENGINES</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>16. PISTON ENGINE</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> </tr> <tr valign="top"> <td bgcolor="#808080"><p align="left"> <b>17. PROPELLER</b></p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> X</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> <td bgcolor="#d9d9d9"><p align="center"> n/a</p> </td> </tr> </table>