| 205-1 | Elevator control bracket, SN 1up to incl. SN19 | | German | English |
| 205-2 | Forward fuselage main bulkhead SN’s 1 to 17, except SN 14 | | German | English |
| 205-3 | Parachute rip cord attachment, all SN | | German | English |
| 205-4 | Attachment of airbrake hinges Up to and incl. SN 61 | | German | English |
| 205-5 | FRP cover of parallelogram control stick, up to & incl. SN 65 | Before 1/5/1975 | German | English |
| 75-168/2 | 205-6 | Reinforcement of guide plates on elevator actuating bracket, up to and incl. SN 107 | Before 29/2/1976 | German | English |
| 205-7 | Modification of landing gear to reduce angle of attack on ground, up to and incl. SN125, exept SN 1 and SN 66 | | German | English |
| 205-8 | Modification of tail gear to reduce angle of attack on ground, SN 66, 125 and on | | German | English |
| 205-9 | Rear canopy tilt-up support SN 66 and 125 and up | | German | English |
| 205-10 | Shortened airbrakes on inner side, SN 138 and up | | German | English |
| 205-11 | Improvement of shear web, SN 140 and up | | German | English |
| 205-12 | Reduced travel of rudder pedals, SN 170 and up, optional | | German | English |
| 205-13 | Deviation of Netherland registered sailplanes from German TCDS | At C of A Inspection | German | English |
| 205-14 | Retrofit of center of gravity towrelease | | German | English |
| 88-280/2 | 205-15 | Extension of service life limit to 6000 hrs | Before 31/5/1989 or at 3000 hours | German | English |
| 88-28 | 205-16 | Elevator drive bracket, Reinforcement or replacement | Before 30/4/1988 | German | English |
| 205-17 | Elevator drive bracket: Possibility of replacement by elevator drive bracket acc. to drawing No. 201-33-4 | | German | English |
| 205-18 | Tow releases: Optional use of model E85 instead of E72/E75 | | German | English |
| 96-132 | 205-19 | Inspection of glass | Annual Inspection | German | English |
| 96-138 | 205-20 | Weight and static moments of control surfaces after repainting and repair | Before 31/3/1996 | German | English |
| 205-21 | Optional installation of winglets | | German | English |
| 2003-003 | 205-22 | Rudder gimbal drive – rear actuator arm | Before 31/3/2003 | German | English |
| 205-23 | Extension of service life limit to 12000 hours | Before 31/3/2006 or at 3000 hours | German | English |
| 205-23 | Manual | | German | English |
| 205-24 | Reinforcement of main landing gear frame | | German | English |
| 205-25 | Installation of Mode-S-Transponder and Transponder Antennas | | German | English |
| 205-26 | Spar stub fitting replacement, standardisation of fittings | | German | English |
| EASA AD 2011-213 | 205-27 | Inspection / replacement of elevator control rod in vertical fin | 30 days, before 31/12/2012 | German | English |
| 205-27 | Authorised service facilities for TN 205-27 | | German | |
| 2018-0143-E | 5-2018 | Deflector-angles at the C.G. release. Usage of connection ring pair meeting LN 65091 | Annually | | English |
| 205-28 | Installation of new winglets optional | | German | English |
