ST03537AT
Installation of a Single Class-A Sandel ST3400 Terrain Awareness Warning System with Remote Magnetic Indicator Function on copilot upper left instrument panel. Held by Presidential Airways INC.. Last revised August 23, 2010. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Construcciones Aeronauticas S.A.; Construcciones Aeronauticas S.A.; Construcciones Aeronauticas S.A.
- Models
- CN-235-100, CN-235-200, CN-235-300
- Type certificates
- A21NM, A21NM, A21NM
- On this site
- Construcciones Aeronauticas Sa CN-235 10 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 21, 2026.