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Atlas / STC / SR04590NY

FAA · Supplemental Type Certificate

STC SR04590NY

Heavy-Duty Battery Installation must be in accordance with Airbus Helicopters Master Drawing List\nMDL-17-002, Revision A, Transport Canada Civil Aviation (TCCA) approved December 16, 2019, or later\nTCCA approved revision.

Current Issued Aircraft Rotorcraft Rev 02/16/2021 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 ↗