SA09636AC
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. Held by S-Tec Corporation, which holds 1,083 approved modifications in all. Last revised September 20, 2004. System: flight controls.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Cessna Aircraft Company
- Models
- 425
- Type certificate
- A7CE
- On this site
- Cessna 425 Conquest I 161 registered
- The FAA's record
- On the FAA's site
What an approved modification is
A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.
Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 5, 2026.