# STC SR03121CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: North American Surveillance Systems LLC, United States
- Description: Installation of a Reinforced Battery Tray, Wescam MX-10 Camera, Spectrolab SX-16 Searchlight, Northern Airborne Technologies loud speaker system, and provisions for a radio and direction finder
- Applied: May 26, 2011
- Status date: September 19, 2012
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 29
- Data sheets: [TCDS R00002RD](https://openairdocs.org/tcds/R00002RD)
- Certificate PDF: https://openairdocs.org/files/sha256/c0/ee/c0eee7ca82ef759b389853f098d741a9e482ad642ac98949a0e1feea0f6c47c2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3752ACDECC52EDA986257F420054D300.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR03121CH

## ADs that name it (0)

None.

## Approved models (1)

- Agusta S.p.A. AW139 ([TCDS R00002RD](https://openairdocs.org/tcds/R00002RD))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

Part 29 of the Federal Aviation R egulations as ann otated in Type Certificate R 00002R D .

Original Product --Type Certificate N umber :

Desc ription of Type Design Change:

Installation of a Reinforced Battery Tray, Wescam MX-10 Camera, Spectrolab SX-16 Searchlight, Northern Airborne Technologies loud speaker system, and provisions for a radio and direction finder installation according to North American Surveillance Systems Master Drawing Lists document numbers 322MMDLK1, Rev. A, dated 5-10-2012 and 322EMDLK2, Rev. A dated 5-10-2012 or later FAA approved revisions.

1) The FAA has not evaluated the Wescam MX-10 Camera, Spectrolab SX-16 Searchlight and Northern Airborne Technologies loud speaker system to check its proper operations for its intended function.

2) Compatibility of this design change with previously approved modifications must be determined by the installer.

3) A copy of this certificate or later FAA approved revision must be maintained as part of the permanent records for the modified aircraft.

4) 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.

North American Surveillance Systems LLC W787 Eau Galle Dam Road Spring Valley, WI 54767 R00002RD M ake : AGUSTA S.p.A.

M odel : AW139 Date of application : May 26, 2011

Date of issuance : September 19, 2012 Date reissued :

B y direction of the A dministrator

Original Signed By:

Karol Mordasiewicz (Signature) Karol Mordasiewicz Manager, Airframe and Administrative Branch Chicago Aircraft Certification Office

(Title)

FAA FORM 8110-2-1(10-69) PAGE 2 of 3 PAGES

Number

FAA FORM 8110-2-1(10-69) PAGE 3 of 3 PAGES

Number ST00XXXCH-D Date of Issuance: XXXXXX Date Amended: XXXXXX

## Every issue (1)

- September 19, 2012: Issued, Current. [certificate](https://openairdocs.org/files/sha256/c0/ee/c0eee7ca82ef759b389853f098d741a9e482ad642ac98949a0e1feea0f6c47c2)

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