What it approves
Mount collision avoidance lights in engine nacelle.
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.
SA4270SW Johnson Aviation Products 4345 Las Lunas Ct.
Castle Rock, CO 80104 Part 3 the Civil Air Regulations A7CE Cessna 411A, 421, 421A, 421B, 421C Mount collision avoidance lights in engine nacelle according to Drawing List dated 9/16/80, Sheets 1 through 14 with Sheet 11 dated 1/22/81 and Sheet 12 dated 1/23/81, or later FAA approved revision.
The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.
September 12, 1980 February 2, 2022 February 19, 1981 S. Frances Cox Acting Manager, Fort Worth ACO Branch, Compliance & Airworthiness Division Aircraft Certification Service 2
SA4270SW 2
ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.
Approved models · 5
Every issue · 2
DRS keeps each issue of an STC as its own record, with its own certificate and attachments.
| Date | Status | Files |
|---|---|---|
| February 2, 2022 | Reissued, current | Certificate |
| February 19, 1981 | Issued, earlier issue | Certificate |