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Atlas / STC / ST00135BO

FAA · Supplemental Type Certificate

STC ST00135BO

Modification of Honeywell TCAS II system installation with R/T 910 and software Version 6.4a to R/T 910 with Change 7.0 software; or TCAS 2000 system with R/T 950, 951 and software Version 6.4a to R/T 950, 951 with Change 7.0 software.

Current Reissued Aircraft Large Multi-Engine Rev 09/13/2018 View PDF on drs.faa.gov ↗

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.

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 ↗