STC ST04247AT

Installation of an Avionics Support Group Constant Friction Mount (cfMount) and Cradle

Historical Issued Aircraft Large Airplane Rev 12/30/2015 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 (16)

A46NM Airbus · A330-201
A46NM Airbus · A330-202
A46NM Airbus · A330-203
A46NM Airbus · A330-223
A46NM Airbus · A330-223F
A46NM Airbus · A330-243
A46NM Airbus · A330-243F
A46NM Airbus · A330-301
A46NM Airbus · A330-302
A46NM Airbus · A330-303
A46NM Airbus · A330-321
A46NM Airbus · A330-322
A46NM Airbus · A330-323
A46NM Airbus · A330-341
A46NM Airbus · A330-342
A46NM Airbus · A330-343

Certification basis — 14 CFR

Part 21
Part 25
Part 26

Specific sections

Sec. 111
Sec. 113
Sec. 115
Sec. 117
Sec. 119
Sec. 120
§ 21.47
§ 25.29
§ 26.11
§ 26.47
§ 21.101
§ 21.120
§ 25.301
§ 25.303
§ 25.305
§ 25.307
§ 25.561
§ 25.601
§ 25.603
§ 25.605
§ 25.609
§ 25.611
§ 25.613
§ 25.773
§ 25.789
§ 25.1301
§ 25.1307
§ 25.1309
§ 25.1529
§ 25.1541

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