The use of Hand-held fire extinguishers containing Halon in Aircraft will become prohibited end of 2025 and you will need to replace all them.

Installation of a Century Yaw Damper System, Kit No. YK1042 consisting of a Century Yaw Damper.

Installation of a Century Automatic Flight System Kit No. AK1041, consisting of a Centruy 41 Autopilot/Flight Director.

Installation of the KMD 250 Multi-Function Display System with Optional Internal VFR GPS and Optional Traffic and Weather Sensors.

Installation of Bendix/King KMD 550/850 Multi-Function Display System with Optional Traffic, Terrain and Weather Sensors. This STC also is approved for some single-engine aircraft. See SA01105WI-D (2 of 2).

Installation of Bendix/King KMD 550/850 Multi-Function Display, with optional KLN 94 Global Positioning System, KGP 560 General Aviation Enhanced Ground Proximity Warning System, RDR 2000 Weather Radar System and KMH 880 Multi-Hazard Awareness System or KTA 870 Traffic Awareness System.

Installation of single S-TEC Meggitt Electronic Flight Instrument System (EFIS) in accordance with Master Data List 921229-02, Revision 5; or dual S-TEC Meggitt EFIS in accordance with Master Data List 921229-03, Revision 6, both dated 9-15-2004, or later FAA approved revision for Cessna 425. FAA approved Airplane Flight Manual Supplement No. 892136, dated 9-20-2004, or later FAA approved revision is required for Cessna 425 with single or dual S-TEC Meggitt EFIS.

Installation of S-TEC 01304 Digital Flight Control System (DFCS), Three Axis Automatic Flight Guidance System Part No. 01304-04-01-007, in accordance with Master Data List 921231, Revision 5, dated 9-14-2004, or later FAA approved revision for Cessna 425. FAA approved Airplane Flight Manual Supplement No. 892135, dated 9-20-2004, or later FAA approved revision is required for Cessna 425 with S-TEC 01304 DFCS.

Replacement of one existing Transponder System by a Garmin GTX 330D Mode-S Transponder System EASA.A.S.02953

Installation of replacement fuel tank sealant system