STC ST00847SE

Installation of Model 4035 Transient Suppression Units on Boeing 737 Classic Airplanes fitted with Smiths Digital Fuel Gauging Systems. Responsible ACO is Seattle ACO.

Historical Amended Aircraft Large Multi-Engine Rev 12/27/2004 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)

A16WE The Boeing Company · 737-100 Series
A16WE The Boeing Company · 737-400 Series
A16WE The Boeing Company · 737-300 Series
A16WE The Boeing Company · 737-500 Series
A16WE The Boeing Company · 737-200 Series

Certification basis — 14 CFR

Part 21

Specific sections

§ 21.111
§ 21.113
§ 21.115
§ 21.117
§ 21.119
§ 21.120

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