STC SE02842AT

Remove drain plug, Cessna Part Number AN913-1D, from the fuel selector valve and replace with CAV-110D (CM-170) or CAV-110H-4D (CM-170L) (See page 3 for Serial Nos.)

Current Reissued Aircraft Small Airplane Rev 09/28/2020 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 (1)

A-799 The Cessna Aircraft Company · 170B

Certification basis — 14 CFR

Part 3
Part 21

Specific sections

§ 21.47
§ 21.55
§ 21.120

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