STC ST01391WI

Upgrade of the Universal UNS-1B FMS to the UNS-1F FMS. Data Required: 1) LJSC Ltd. Master Drawing List MDL4028-34238, Revision F, dated April 2, 2006; and 2) LJSC Ltd. Airplane Flight Manual Supplement FMS4028-34238, Revision IR, dated May 25, 2006; or later FAA approved revisions to (1) or (2).

Historical Reissued Aircraft Small Multi-Engine Rev 11/15/2011 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 (1)

A10CE Learjet Inc. · 31A

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 ↗