STC SA4374NM

: Installation of a pitot-type engine air intake in accordance with R. David Record Installation Manual, dated August 18, 1988, and Master Print List No. 062088, dated September 23, 1988 Note: The engines approved are United Aircraft of Canada models PT6A-34AG, PT6A-15AG, or PT6A-11AG. The propellers are Hartzell model HC-B3TN-3C hubs with T-10282 blades.

Historical Reissued Aircraft Single-Engine Rev 12/05/2011 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 (3)

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 ↗