| No | AD Class | Class Number | Issue Date | Subject | Approval Holder Type/Designation | Effective Date | ATA Chapter | Actions |
|---|---|---|---|---|---|---|---|---|
| 1 | AD | D-1999-185-4 | 2001-10-18 | Main Rotor - Cracks in Main Rotor Hub-Shaft | AIRBUS HELICOPTERS DEUTSCHLAND EC135/635 | 2001-10-18 | 62 | |
| 2 | AD | US-2003-16-11 | 2003-08-26 | Main Rotor Drive Shaft - Life Limitation | MD HELICOPTERS INC (MDHI) 600N | 2003-09-30 | 63 | |
| 3 | AD | IT-1977-249 | 1977-12-05 | Tail Rotor - Tail Rotor Control Silent Chain Guard P/N 204-010-747-3 - Modification | LEONARDO S.p.A. HELICOPTERS AB204/AB205 | 1977-12-31 | 64 | |
| 4 | EAD | 2014-0029-E | 2014-01-30 | Rotor Flight Controls - Collective Control Lever Electrical Harness Attachment - Modification | WSK PZL-SWIDNIK S.A. SW4 | 2014-02-01 | 67 | |
| 5 | AD | 2009-0034 | 2009-02-18 | Powerplant System - Attach Fittings - Exchange of Attachment Bolts | SCHEMPP HIRTH FLUGZEUGBAU Ventus Powered Sailplanes | 2009-03-04 | 71 | |
| 6 | AD | US-2022-06-09 | 2022-03-14 | Engine - 1st-Stage Low-Pressure Compressor Blades - Inspection / Removal | PRATT & WHITNEY PW4070 PW4080 PW4090 | 2022-04-15 | 72 | |
| 7 | AD | CF-2016-23R1 | 2017-02-28 | Engine - Rear Mount Retaining Bolt Failure | BOMBARDIER BD-700 | 2017-03-06 | 72 | |
| 8 | AD | 2010-0118 | 2010-06-18 | SUPERSEDED BY EASA AD 2010-0273 | SAFRAN HELICOPTER ENGINES ARRIEL 1 | 2010-07-02 | 72 | |
| 9 | AD | 2004-0008R1 | 2005-02-02 | Engine - 4th Stage Low Pressure Turbine Disc - Inspection | PRATT & WHITNEY JT8D | 2005-06-15 | 72 | |
| 10 | AD | US-2021-13-16 | 2021-07-23 | Engine - Lower Fuel Manifold - Inspection | GENERAL ELECTRIC GEnx | 2021-08-25 | 73 |