FAA · Supplemental Type Certificate
STC ST01003CH-D
Installation of AlliedSignal Aerospace N1 digital electronic engine control (DEEC).
What is an STC?
A Supplemental Type Certificate authorizes a major modification or alteration to an FAA-certificated aircraft. STCs are how operators legally install new avionics, change fuel systems, add floats, swap engines, etc. — every change beyond a minor modification needs one.
Applicable aircraft (14)
- A3EU Hawker Beechcraft Corporation · BH.125 Series 400A
- A3EU Hawker Beechcraft Corporation · BH.125 Series 600A
- A3EU Hawker Beechcraft Corporation · DH.125 Series 1A
- A3EU Hawker Beechcraft Corporation · DH.125 Series 3A
- A3EU Hawker Beechcraft Corporation · DH.125 Series 3A/RA
- A3EU Hawker Beechcraft Corporation · DH.125 Series 400A
- A3EU Hawker Beechcraft Corporation · HS.125 Series 400B
- A3EU Hawker Beechcraft Corporation · HS.125 Series 403B
- A3EU Hawker Beechcraft Corporation · HS.125 Series 600A
- A3EU Hawker Beechcraft Corporation · HS.125 Series 600B
- A3EU Hawker Beechcraft Corporation · HS.125 Series 700A
- A3EU Hawker Beechcraft Corporation · HS.125 Series 700B
- A3EU Hawker Beechcraft Corporation · HS.125 Series F3B
- A3EU Hawker Beechcraft Corporation · HS.125 Series F3B/RA
Certification basis — 14 CFR
Specific sections
- Sec. 111
- Sec. 113
- Sec. 115
- Sec. 117
- Sec. 119
- Sec. 120
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗