FAA · Supplemental Type Certificate
STC ST00844WI-D
Modification of Collins TCAS II or TCAS-94 (TCAS II) system installation with Collins TTR-920 Change 7.0 Receiver Transmitter to a Collins TCAS II or TCAS-94 OTCAS II) system installation with Collins TTR-921 or Collins TTR-4000 Change 7.0 TCAS Receiver Transmitter.
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 (186)
- A53EU Aerospatiale (Societe Nationale Industrielle Aerospatiale) · ATR42-200
- A53EU Aerospatiale (Societe Nationale Industrielle Aerospatiale) · ATR42-300
- A53EU Aerospatiale (Societe Nationale Industrielle Aerospatiale) · ATR42-320
- A53EU Aerospatiale (Societe Nationale Industrielle Aerospatiale) · ATR42-500
- A53EU Aerospatiale (Societe Nationale Industrielle Aerospatiale) · ATR72-101
- A53EU Aerospatiale (Societe Nationale Industrielle Aerospatiale) · ATR72-102
- A53EU Aerospatiale (Societe Nationale Industrielle Aerospatiale) · ATR72-201
- A53EU Aerospatiale (Societe Nationale Industrielle Aerospatiale) · ATR72-202
- A53EU Aerospatiale (Societe Nationale Industrielle Aerospatiale) · ATR72-211
- A53EU Aerospatiale (Societe Nationale Industrielle Aerospatiale) · ATR72-212
- A53EU Aerospatiale (Societe Nationale Industrielle Aerospatiale) · ATR72-212A
- A28NM Airbus · A320 Model -111
- A28NM Airbus · A320 Model -211
- A28NM Airbus · A320 Model -212
- A28NM Airbus · A320 Model -231
- A28NM Airbus · A320 Model -232
- A35EU Airbus · A300 Model B2-1A
- A35EU Airbus · A300 Model B2-1C
- A35EU Airbus · A300 Model B2-203
- A35EU Airbus · A300 Model B2K-3C
- A35EU Airbus · A300 Model B4-103
- A35EU Airbus · A300 Model B4-203
- A35EU Airbus · A300 Model B4-2C
- A35EU Airbus · A300B4-601
- A35EU Airbus · A300B4-603
- A35EU Airbus · A300B4-605R
- A35EU Airbus · A300B4-620
- A35EU Airbus · A300B4-622R
- A35EU Airbus · A300F4-605R
- A35EU Airbus · A300F4-622R
- A35EU Airbus · A300 Model C4-605 Variant F
- A35EU Airbus · A310-203
- A35EU Airbus · A310-204
- A35EU Airbus · A310-221
- A35EU Airbus · A310-222
- A35EU Airbus · A310-304
- A35EU Airbus · A310-322
- A35EU Airbus · A310-324
- A35EU Airbus · A310-325
- A43NM Airbus · A340-211
- A43NM Airbus · A340-212
- A43NM Airbus · A340-213
- A43NM Airbus · A340-311
- A43NM Airbus · A340-312
- A43NM Airbus · A340-313
- A43NM Airbus · A340-541
- A33EU Avions Marcel Dassault - Breguet Aviation · Falcon 10
- A27NM BAE Systems (Operations) Limited · ATP
- A49EU BAE Systems (Operations) Limited · BAe 146-100A
- A49EU BAE Systems (Operations) Limited · BAe 146-200A
+ 136 more aircraft
Certification basis — 14 CFR
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗