STC ST09957SC

Supplemental type certificate · Aircraft Systems & Mfg

Holder
Aircraft Systems & Mfg · United States
Status
Current · Issued
Status date
October 16, 2001
Applied
June 5, 2001
Product
Aircraft · Large Multi-Engine
Certification basis
Part 21
Data sheet
TCDSA3WE

From FAA DRS, with our copy of the certificate PDF. DRS record last changed December 6, 2025.

What it approves

Installation of Innovative Solutions & Support (IS&S) digital air data system consisting of an electric altimeter, Digital Air Data Computer (DADC), Air Data Display Unit (ADDU), and an altitude alerter.

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 · 2

MakeModelData sheet
The Boeing Company727-100 SeriesA3WE
The Boeing Company727-200 SeriesA3WE