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Atlas / STC / ST00525WI-D

FAA · Supplemental Type Certificate

STC ST00525WI-D

Modification of Collins 618M-4 VHF COMM Receiver Transmitter Installation to a 618M-5 VHF COMM Receiver Transmitter installation with either a Gables G7406-02 or Avtech 7522-1-2 VHF COMM Receiver Transmitter Control Series using with Collins Installation Instructions as listed on AML No. ST00525WI-D, or later FAA approved revisions.

Historical Issued Aircraft Large Multi-Engine Rev 06/14/2001 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.

Applicable aircraft (61)

+ 11 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 ↗