# STC SA777SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Alcor LLC
- Description: Installation of ALCOR Model 250 turbosupercharger. Serial Number 1850032 only
- Status date: May 27, 2025
- Data sheets: 3A24
- Certificate PDF: https://openairdocs.org/files/sha256/56/98/5698d64006ac80895fc40262697a40370d526142e980220ca6ae0e6f201c669e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID124609831620250624181402.0001
- Page: https://openairdocs.org/stc/SA777SW

## ADs that name it

None.

## Approved models (1)

- Textron Aviation Inc. 185 (TCDS 3A24)

## 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.

SA777SW Alcor LLC 300 Breesport St.

San Antonio, TX 78216 Part 3 the Federal Aviation Regulations 3A24 Textron Aviation Inc.

1. Modification limited to Cessna Model 185, Serial Number 1850032, Registration Number N9832X ONLY.

(See Continuation Sheet 3 of 3) 03/31/1966 07/05/1994 09/30/2002 05/27/2025 04/03/1967 for Paul Nguyen Manager, Central Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 3 Installation of ALCOR Model 250 Turbosupercharger in accordance with data listed in ALCOR letter and attachment of February 2, 1967.

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

SA777SW 05/27/2025 3

SA777SW 05/27/2025 Limitations and Conditions (Continued):

2. Placards called out in Type Inspection Report A877SW-S are required.

3. 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.

-END- 3 3

## Every issue (2)

- May 27, 2025: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/56/98/5698d64006ac80895fc40262697a40370d526142e980220ca6ae0e6f201c669e)
- September 30, 2002: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/c9/0e/c90e0bf6e5a5d6d277ab611930f531c637b0659f75af928d0a42186be0f522a0)

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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.