What it approves
Installation of the position/anti-collision LED lights and LED beacon light
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.
SA12030NY Whelen Aerospace Technologies 51 Winthrop Road Chester, CT 06412 Part 23 Title 14 Code of Federal Regulations A1WI Textron Aviation Inc.
525, 525A, 525B, & 525C
1. The installer must determine whether this design change is compatible with previously approved modifications.
2. If the holder agrees to permit another person to use the certificate to alter the product, the holder must give the other person written evidence of that permission.
(Limitations and Conditions continued on page 3 of 3) 04/06/2023 06/01/2026 05/27/2025 Michael Linegang Manager, East Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 3
1. Installation of the position/anti-collision LED lights and LED beacon light on the Textron Aviation Inc.
aircraft models 525, 525A, 525B, & 525C in accordance with Sterling Helicopter Master Drawing List number ST-9628-02, Rev B, dated March 17, 2025, or later FAA approved revision.
SA12030NY 06/01/2026 3
SA12030NY 06/01/2026 Limitations and Conditions continued:
3. Maintenance to be performed in accordance with Sterling Helicopter Instructions for Continued Airworthiness (ICA) document number ST-9628-03, Rev. -, dated January 12th, 2025 or later FAA approved revision.
4. This STC replaces existing OEM Position/Anti-Collision Lights on Wingtips, Tail, and Beacon lights with LED lights and adapter parts listed in the Master Drawing List, document number ST-9628-02, Revision B, dated March 17, 2025, or later FAA approved revision under this STC.
Certification Basis:
Based on 14 CFR 21.93 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the FAA certification basis for the Textron Aviation Inc., models 525, 525A, 525B, and 525C aircraft modification are as follows:
(a) The Type Certification basis for the Textron Aviation Inc., models 525, 525A, 525B, and 525C aircraft is shown on TCDS A1WI for parts not changed or affected by the change.
(b) The certification basis for parts changed or affected by the change since the reference date on application May 27, 2025, is based upon part 23 as amended by Amendment 23-57 is as follows:
Regulations at amendment 23-0 through 23-57:
23.301(a) [Amdt. 23-48], 23.303 [Amdt. 23-0], 23.305 [Amdt. 23-45], 23.307(a) [Amdt. 23-0],
23.337(a)(b)(c) [Amdt. 23-48], 23.561(c)(d) [Amdt. 23-48], 23.601 [Amdt. 23-0], 23.603 [Amdt. 23-23], 23.605(a) [Amdt. 23-23], 23.607 [Amdt. 23-48], 23.609 [Amdt. 23-0], 23.611 [Amdt. 23-48], 23.613 [Amdt. 23-45], 23.619 [Amdt. 23-7], 23.625(a)(b) [Amdt. 23-7], 23.773(a)(2) [Amdt. 23-45C], 23.1301 [Amdt. 23-20], 23.1301 [ Amdt. 23-62**], 23.1309(a)(1)(3) [Amdt.23-49], 23.1309(a) [Amdt. 23-62**], 23.1351(a)(b)(1)(i) [Amdt. 23-49], 23.1357(a)(b)(c)(d) [Amdt. 23-43], 23.1365(a) [Amdt. 23-49], 23.1367(a) [Amdt. 23-0], 23.1385 [Amdt. 23-43],
23.1387 [Admdt. 23-43], 23.1389 [Admdt. 23-43], 23.1391 [Amdt. 23-43], 23.1393 [Amdt. 23-43],
23.1395 [Amdt. 23-43], 23.1397 [Amdt. 23-11], 23.1401(a)(1)(2)(b)(c)(d)(e)(f) [Amdt. 23-49],
23.1431(b) [Amdt. 23-49], 23.1529 [Amdt. 23-26], Part 23.G23.1 [Admdt. 23-26], Part 23.G23.2 [Admdt. 23-26], Part 23.G23.3 [Admdt. 23-34], Part 23.G23.4 [Admdt. 23-37],
**Compliance data was shown for the Beacon light only at amendment 23-0 through 23-62 -----------------------------------------END-------------------------------------- 3 3 Add Page
ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.
Approved models · 4
Every issue · 2
DRS keeps each issue of an STC as its own record, with its own certificate and attachments.
| Date | Status | Files |
|---|---|---|
| June 1, 2026 | Issued, current | Certificate |
| May 27, 2025 | Issued, earlier issue | Certificate |