# STC SA03407AT

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Alakai Technologies, United States
- Description: Installation of Alakai Passive  Engine Trend Monitoring System (ETMS) and optional Passive  Broadband Unit in the Cirrus Design Corporation SR20 / SR22 aircraft .
- Applied: October 5, 2006
- Status date: November 18, 2008
- Product: Aircraft, Single-Engine
- Certification basis: Part 21, Part 23
- Data sheets: [TCDS A00009CH](https://openairdocs.org/tcds/A00009CH)
- Certificate PDF: https://openairdocs.org/files/sha256/8a/c2/8ac2152700dc720a3a0c1482cce9d07c819c9c46dfe2ec4d7b2aef53be52176c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BDF857A5F940C40086257507007C67B2.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA03407AT

## ADs that name it (0)

None.

## Approved models (2)

- Cirrus Design Corporation SR20 ([TCDS A00009CH](https://openairdocs.org/tcds/A00009CH))
- Cirrus Design Corporation SR22 ([TCDS A00009CH](https://openairdocs.org/tcds/A00009CH))

## 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 23 of the Federal Aviation Regulations.

Installation of Alakai “Passive” Engine Trend Monitoring System (ETMS) and optional “Passive” Broadband Unit in the Cirrus Design Corporation SR20 / SR22 aircraft in accordance with Alakai Technologies Master Document List, Document No. 20-001- MDL-STC-9430AT-A, Revision 1.3, dated November 17, 2008, or later FAA-approved revisions.

1. Instructions for Continued Airworthiness (ICA), Alakai Technologies Document 20-001-ICA-STC-ETMS, Revision 1.22, dated November 17, 2008 or later FAA accepted revision shall be made available to the operator at the time of installation.

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

If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Alakai Technologies 22 Piazza Lane Hopkinton, Massachusetts 01728 A00009CH Make : Cirrus Design Corporation Model : SR20, SR22 Date of application : October 5, 2006

Date of issuance : March 8, 2007

Date reissued : May 2, 2007

Date amended : November 18, 2008

( Signature) Robert G. Mann Manager Boston Aircraft Certification Office

( Title)

## Every issue (1)

- November 18, 2008: Amended, Current. [certificate](https://openairdocs.org/files/sha256/8a/c2/8ac2152700dc720a3a0c1482cce9d07c819c9c46dfe2ec4d7b2aef53be52176c)

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