STC SA3845SW

Installation of Teledyne Continental Motors IO-550C engines and McCauley 3AF32C512/82NEA-5 or Hartzell PHC-C3YF-2UF/FC7663 (B, K) -2R or Hartzell PHC-J3YF-2 (U) F/FC7663 (B,K) -2R propellers in accordance with D Shannon Products Drawing List No. DL87001, Revision 4, 08/24/92, or later FAA Approved revisions.

Current Amended Aircraft Single-Engine Rev 10/19/2011 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 (5)

Certification basis — 14 CFR

Specific sections

Sec. 111
Sec. 113
Sec. 115
Sec. 117
Sec. 119
Sec. 120
§ 21.47

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