STC ST04481CH

Supplemental type certificate · Butler National Corporation

Holder
Butler National Corporation · United States
Status
Current · Issued
Status date
May 18, 2021
Applied
August 21, 2020
Product
Aircraft
Certification basis
Part 21
Data sheet
TCDSA10CE

From FAA DRS, with our copy of the certificate PDF. DRS record last changed December 5, 2025.

What it approves

Replacement of similar functioning circuit and switch for obsolete steering interface unit (SIU) in accordance with Butler National Master Data List 0200 I 020 Revisio n (A) , dat ed 14 MAY 2021, or later FAA Approved Revision.

What the certificate says

From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.

This certificate is a scan without a text layerOpen the PDF to read it.

ADs that name this STC · 0

An AD can apply because an STC is installed, or mention one in its text.

No AD in this release names this STC

Approved models · 4

MakeModelData sheet
Learjet Inc.35A10CE
Learjet Inc.35A (C-21A)A10CE
Learjet Inc.36A10CE
Learjet Inc.36AA10CE