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Atlas / STC / ST01999AT

FAA · Supplemental Type Certificate

STC ST01999AT

This installation adds three recording parameters (pitch control, lateral control, and rudder) to the existing A300 and A310 Digital Flight Data Recorder (DFDR) to meet the requirements of 14 CFR 121.344

Current Reissued Aircraft Large Airplane Rev 04/01/2025 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

The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗