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MODULE 7. MAINTENANCE PRACTICES
Available versions for ERULES-1963177438-590
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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MODULE 7. MAINTENANCE PRACTICES Regulation (EU) 2023/989 <table border="1" cellpadding="0" cellspacing="0" width="605"><thead><tr><td colspan="2" rowspan="2" width="435"><p><b>MODULE 7. MAINTENANCE PRACTICES</b></p></td><td colspan="3" valign="top" width="170"><p>LEVEL</p></td></tr><tr><td valign="top" width="57"><p>A</p></td><td valign="top" width="57"><p>B1</p><p>B3</p></td><td valign="top" width="57"><p>B2</p><p>B2L</p></td></tr></thead><tr><td colspan="2" valign="top" width="435"><p>7.1 Safety precautions – aircraft and workshop</p></td><td valign="top" width="57"><p>3</p></td><td valign="top" width="57"><p>3</p></td><td valign="top" width="57"><p>3</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.2 Workshop practices</p></td><td valign="top" width="57"><p>3</p></td><td valign="top" width="57"><p>3</p></td><td valign="top" width="57"><p>3</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.3 Tools</p></td><td valign="top" width="57"><p>3</p></td><td valign="top" width="57"><p>3</p></td><td valign="top" width="57"><p>3</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.4 (Reserved)</p></td><td valign="top" width="57"><p>—</p></td><td valign="top" width="57"><p>—</p></td><td valign="top" width="57"><p>—</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.5 Engineering drawings, diagrams and standards</p></td><td valign="top" width="57"><p>1</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>2</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.6 Fits and Clearances</p></td><td valign="top" width="57"><p>1</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>1</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.7 Electrical wiring interconnection system (EWIS)</p></td><td valign="top" width="57"><p>1</p></td><td valign="top" width="57"><p>3</p></td><td valign="top" width="57"><p>3</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.8 Riveting</p></td><td valign="top" width="57"><p>1</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>—</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.9 Pipes and Hoses</p></td><td valign="top" width="57"><p>1</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>—</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.10 Springs</p></td><td valign="top" width="57"><p>1</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>—</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.11 Bearings</p></td><td valign="top" width="57"><p>1</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>—</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.12 Transmissions</p></td><td valign="top" width="57"><p>1</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>—</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.13 Control cables</p></td><td valign="top" width="57"><p>1</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>—</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.14 Material handling</p></td><td valign="top" width="57"></td><td valign="top" width="57"></td><td valign="top" width="57"></td></tr><tr><td colspan="2" valign="top" width="435"><p> 7.14.1 Sheet metal</p></td><td valign="top" width="57"><p>—</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>—</p></td></tr><tr><td colspan="2" valign="top" width="435"><p> 7.14.2 Composite and non-metallic</p></td><td valign="top" width="57"><p>—</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>—</p></td></tr><tr><td colspan="2" valign="top" width="435"><p> 7.14.3 Additive manufacturing</p></td><td valign="top" width="57"><p>1</p></td><td valign="top" width="57"><p>1</p></td><td valign="top" width="57"><p>1</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.15 (Reserved)</p></td><td valign="top" width="57"></td><td valign="top" width="57"></td><td valign="top" width="57"></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.16 Aircraft weight and balance</p></td><td valign="top" width="57"></td><td valign="top" width="57"></td><td valign="top" width="57"></td></tr><tr><td valign="top" width="19"></td><td valign="top" width="416"><p>(a) Centre-of-gravity calculation;</p></td><td valign="top" width="57"><p>—</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>2</p></td></tr><tr><td valign="top" width="19"></td><td valign="top" width="416"><p>(b) Aircraft weighing.</p></td><td valign="top" width="57"><p>—</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>—</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.17 Aircraft handling and storage</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>2</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.18 Disassembly, inspection, repair and assembly techniques</p></td><td valign="top" width="57"></td><td valign="top" width="57"></td><td valign="top" width="57"></td></tr><tr><td valign="top" width="19"></td><td valign="top" width="416"><p>(a) Types of defects and visual inspection techniques;</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>3</p></td><td valign="top" width="57"><p>3</p></td></tr><tr><td valign="top" width="19"></td><td valign="top" width="416"><p>(b) General repair methods – structural repair manual;</p></td><td valign="top" width="57"><p>—</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>—</p></td></tr><tr><td valign="top" width="19"></td><td valign="top" width="416"><p>(c) Non-destructive inspection techniques;</p></td><td valign="top" width="57"><p>—</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>1</p></td></tr><tr><td valign="top" width="19"></td><td valign="top" width="416"><p>(d) Disassembly and re-assembly techniques;</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>2</p></td></tr><tr><td valign="top" width="19"></td><td valign="top" width="416"><p>(e) Troubleshooting techniques.</p></td><td valign="top" width="57"><p>—</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>2</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.19 Abnormal events</p></td><td valign="top" width="57"></td><td valign="top" width="57"></td><td valign="top" width="57"></td></tr><tr><td valign="top" width="19"></td><td valign="top" width="416"><p>(a) Inspections following lightning strikes and HIRF penetration;</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>2</p></td></tr><tr><td valign="top" width="19"></td><td valign="top" width="416"><p>(b) Inspections following abnormal events such as heavy landings and flight through turbulence.</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>—</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.20 Maintenance Procedures</p></td><td valign="top" width="57"><p>1</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>2</p></td></tr><tr><td colspan="2" valign="top" width="435"><p>7.21 Documentation & communication</p></td><td valign="top" width="57"><p>1</p></td><td valign="top" width="57"><p>2</p></td><td valign="top" width="57"><p>2</p></td></tr></table>
## MODULE 7. MAINTENANCE PRACTICES *Regulation (EU) 2023/989* <table bgcolor="#d9d9d9" cellpadding="7" cellspacing="0"> <colgroup> <col/> <col/> </colgroup> <colgroup> <col/> </colgroup> <colgroup> <col/> </colgroup> <colgroup> <col/> </colgroup> <thead> <tr> <td bgcolor="#808080" colspan="2" rowspan="2"><p align="center"> <b>MODULE 7. MAINTENANCE PRACTICES</b></p> </td> <td bgcolor="#808080" colspan="3" valign="top"><p align="center"> <b>LEVEL</b></p> </td> </tr> </thead> <thead> <tr valign="top"> <td bgcolor="#808080"><p align="center"> <b>A</b></p> </td> <td bgcolor="#808080"><p align="center"> <b>B1</b></p> <p align="center"><b>B3</b></p> </td> <td bgcolor="#808080"><p align="center"> <b>B2</b></p> <p align="center"><b>B2L</b></p> </td> </tr> </thead> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.1 Safety precautions – aircraft and workshop</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> 3</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 3</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 3</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.2 Workshop practices</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> 3</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 3</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 3</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.3 Tools</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> 3</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 3</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 3</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.4 (Reserved)</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.5 Engineering drawings, diagrams and standards</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> 1</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.6 Fits and Clearances</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> 1</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 1</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.7 Electrical wiring interconnection system (EWIS)</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> 1</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 3</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 3</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.8 Riveting</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> 1</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.9 Pipes and Hoses</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> 1</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.10 Springs</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> 1</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.11 Bearings</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> 1</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.12 Transmissions</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> 1</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.13 Control cables</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> 1</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.14 Material handling</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p align="center"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p align="center"> <br/> </p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.14.1 Sheet metal</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.14.2 Composite and non-metallic</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.14.3 Additive manufacturing</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> 1</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 1</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 1</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.15 (Reserved)</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p align="center"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p align="center"> <br/> </p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.16 Aircraft weight and balance</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p align="center"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p align="center"> <br/> </p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p> (a) Centre-of-gravity calculation;</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p> (b) Aircraft weighing.</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.17 Aircraft handling and storage</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.18 Disassembly, inspection, repair and assembly techniques</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p align="center"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p align="center"> <br/> </p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p> (a) Types of defects and visual inspection techniques;</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 3</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 3</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p> (b) General repair methods – structural repair manual;</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p> (c) Non-destructive inspection techniques;</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 1</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p> (d) Disassembly and re-assembly techniques;</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p> (e) Troubleshooting techniques.</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.19 Abnormal events</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p align="center"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p align="center"> <br/> </p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p> (a) Inspections following lightning strikes and HIRF penetration;</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> </tr> <tr valign="top"> <td bgcolor="#d9d9d9"><p align="left"> <br/> </p> </td> <td bgcolor="#d9d9d9"><p> (b) Inspections following abnormal events such as heavy landings and flight through turbulence.</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> —</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.20 Maintenance Procedures</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> 1</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> </tr> </tbody> <tbody> <tr valign="top"> <td bgcolor="#d9d9d9" colspan="2"><p align="left"> <i>7.21 Documentation & communication</i></p> </td> <td bgcolor="#d9d9d9"><p align="center"> 1</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> <td bgcolor="#d9d9d9"><p align="center"> 2</p> </td> </tr> </tbody> </table>