STC SA274NW

Supplemental type certificate · WAC Corporation Inc

Holder
WAC Corporation Inc · United States
Status
Current · Issued
Status date
April 5, 1976
Applied
January 23, 1976
Product
Aircraft · Small Airplane
Certification basis
Part 21
Data sheet
TCDS2A4

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

What it approves

Replacement of the left forward side window (pilots' compartment) with a plexiglas dome (0.250 in. thickness)

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 · 1

MakeModelData sheet
Twin Commander Aircraft LLC6802A4