STC SA2-820

Increase in take-off weight to 9800 pounds, and increase in landing weight to 9400 pounds, when P&W R-985-AN14B;-AN4 (modified per P&W Special Instruction No. 15F-45) or -AN10 (modified per P&W Special Instruction No. 15F-45) or -AN-1M1(with the Stromberg NAR-9B-19 carburetor with 2-3/4 inch venturi) is installed.

Current Reissued Aircraft Small Multi-Engine Rev 10/06/2006 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

Part 21

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 ↗