| Language | SB | Description | Revision | Date | Applicability |
  |
SB-IS-29D-CO-03 | Improvement of elevator fastening. | 326 | 12.10.1974 | ALL |
| |
SB-IS-29D-CO-05 | Additional securing on the flettner control cable. | 323 | 10.09.1975 | ALL |
| |
SB-IS-29D-CO-06 | Increasing of Elevator Deflection Range. | 454 | 15.05.1975 | ALL |
| |
SB-IS-29D-CO-07 | Fuselage drain holes. | 499 | 15.12.1975 | ALL |
| |
SB-IS-29D-EO-10 | Additional instructions concerning the check and the replacement of the control cables turn-buckle locks. | 052 | 13.01.1983 | ALL |
| |
SB-IS-29D-EO-11 | Safe Life and Service Life increase. | IS-29D | 09.08.1985 | ALL |
| |
SB-IS-29D-EO-14 | Increase of the safe life until the first overhaul. | 701R | 01.06.2004 | ALL |
| |
BS-IS-29D/D2-05-15 | Extension of safe life over 35 years | - | 25.08.2011 | Series 21 and up |
| |
SIL-AR-01 | Quick joint Connectors (L'Hotellier Ball and Swivel) installed on IS Sailplanes | 01 | 06.11.2018 | ALL |
| |
SB-IS-29D/D2-AR-01 | Changing the maintenance program and cancelling of the life time limitation to all IS-29D/D2 gliders variants | 01 | 19.04.2018 | ALL |
| |
SIL-AR-05 | Wings installation inspection | 01 | 01.11.2021 | ALL |
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