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Atlas / STC / ST00393NY

FAA · Supplemental Type Certificate

STC ST00393NY

Installation of NNAL 527 stretcher system. (737-400 -4Q8, -46M) (737-300 -317, -3Y0, -3S3) (A310 300 -304, -324) (767 -233, -333, -335) (DHC-8-101, -102, -103, -106, -301, -311) (757 -27B, -28A, -236, -23A, -225)(767-233, 767-275,767-333, 767-375)

Historical Amended Aircraft Large Multi-Engine Rev 01/30/2004 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 ↗