ST456CH-D
Installation of AlliedSignal Aerospace TFE731-3D-1H or TFE731-3DR-1H Turbofan Engine(s). Held by Honeywell International INC, which holds 599 approved modifications in all. Last revised November 26, 2007. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation
- Models
- BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A, DH.125 Series 3A, DH.125 Series 3A/RA, DH.125 Series 400A, HS.125 Series 1B, HS.125 Series 3B, HS.125 Series 3B/RA, HS.125 Series 400A, HS.125 Series 400B, HS.125 Series 400B/1, HS.125 Series 600A, HS.125 Series 600B, HS.125 Series 600B/1, HS.125 Series 600B/2, HS.125 Series 600B/3, HS.125 Series 700A, HS.125 Series 700B
- Type certificates
- A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU
- On this site
- Hawker Siddeley HS.125 SERIES 700A 7 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 20, 2026.