STC SA1248SO

Installation of single point seat belt and shoulder harness restraint systems for the pilot's, co-pilot's, forward observer's and flight attendant's seat assemblies.

Current Surrendered Aircraft Large Multi-Engine Rev 08/04/2009 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)

6A6 Tracor Flight Systems Inc. · 340
6A6 Tracor Flight Systems Inc. · 440 Military C-131E
A-793 Tracor Flight Systems Inc. · 240 Series

Certification basis — 14 CFR

Part 21

Specific sections

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

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