# STC SA490SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Alcor Aviation LLC
- Description: Installation of ALCOR turbocharger.
- Status date: May 27, 2025
- Data sheets: 1A8
- Certificate PDF: https://openairdocs.org/files/sha256/62/1c/621c66ba50d7ba98bbf433725813c638a804f453d903d906be2d4edf12e94c93
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID177925234020250624180735.0001
- Page: https://openairdocs.org/stc/SA490SW

## ADs that name it

None.

## Approved models (1)

- Helio Aircraft LLC H-395 (USAF L-28A or U-10B) (TCDS 1A8)

## 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.

SA490SW Alcor LLC 300 Breesport St.

San Antonio, TX 78216 Part 3 the Civil Air Regulations 1A8 Helio Alaska, Inc.

H-395 (Military U-10B) FAA Approved Airplane Flight Manual Supplement dated March 12, 1965, is required. 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.

01/22/1965 07/05/1994 09/30/2002 05/27/2025 03/15/1965 04/06/1976 for Paul Nguyen Manager, Central Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 2 Installation of ALCOR Turbocharger in accordance with ALCOR Installation Manual dated March 1965, and Drawing List dated November 18, 1964.

FAA 8110-2 ( 10/24) Page 2 of __

SA490SW 05/27/2025 2

## Every issue (2)

- May 27, 2025: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/62/1c/621c66ba50d7ba98bbf433725813c638a804f453d903d906be2d4edf12e94c93)
- September 30, 2002: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/65/3b/653b2fb9b3e2816241dfe61b93f5f8e163b29e580551ed3567a60d5b74a708db)

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From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.