ST02359CH-D
Modification of the Rockwell Collins TDR-94D Transponders and RTU-870 Radio Tuning Units to Elementary (Flight ID) and Enhanced Surveillance capable equipment. Held by Duncan Aviation INC, which holds 316 approved modifications in all. Last revised September 12, 2008. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation
- Models
- BAe.125 Series 800A, Hawker 800, Hawker 800XP
- Type certificates
- A3EU, A3EU, A3EU
- On this site
- British Aerospace BAE 125 76 registered
Raytheon Corporate Jets Inc HAWKER 800 32 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 22, 2026.