FAA · Supplemental Type Certificate
STC ST00974CH
Installation of provisions for an Automatic Dependent Surveillance Broadcast (ADS-B) System to provide Cockpit Display of Traffic Information (CDTI).
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 (13)
- A6WE McDonnell Douglas Corporation · DC-9-11
- A6WE McDonnell Douglas Corporation · DC-9-12
- A6WE McDonnell Douglas Corporation · DC-9-13
- A6WE McDonnell Douglas Corporation · DC-9-14
- A6WE McDonnell Douglas Corporation · DC-9-15F
- A6WE McDonnell Douglas Corporation · DC-9-32F
- A6WE McDonnell Douglas Corporation · DC-9-31
- A6WE McDonnell Douglas Corporation · DC-9-32
- A6WE McDonnell Douglas Corporation · DC-9-33F
- A6WE McDonnell Douglas Corporation · DC-9-34
- A6WE McDonnell Douglas Corporation · DC-9-34F
- A6WE McDonnell Douglas Corporation · DC-9-41
- A6WE McDonnell Douglas Corporation · DC-9-15
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 ↗