# STC SA11177SC

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Hartzell Propeller LLC, United States
- Description: Installation of a Hartzell Propeller Inc. model HC-C2YR-IN/NG8301-3 propeller
- Applied: January 9, 2014
- Status date: September 12, 2025
- Product: Aircraft, Small Airplane
- Data sheets: [TCDS A22NM](https://openairdocs.org/tcds/A22NM)
- Certificate PDF: https://openairdocs.org/files/sha256/b2/12/b2127d14bcf9086ab5cbb3e7f00ae41f2a768625da53e8835c83d212ef852933
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186255788120250916161945.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA11177SC

## ADs that name it (0)

None.

## Approved models (5)

- Aviat Aircraft Inc A-1 ([TCDS A22NM](https://openairdocs.org/tcds/A22NM))
- Aviat Aircraft Inc A-1A ([TCDS A22NM](https://openairdocs.org/tcds/A22NM))
- Aviat Aircraft Inc A-1B ([TCDS A22NM](https://openairdocs.org/tcds/A22NM))
- Aviat Aircraft Inc A-1C-180 ([TCDS A22NM](https://openairdocs.org/tcds/A22NM))
- Aviat Aircraft Inc A-1C-200 ([TCDS A22NM](https://openairdocs.org/tcds/A22NM))

## 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.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number 

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**HARTZELL PROPELLER LLC**

ONE PROPELLER PLACE PIQUA, OHIO 45356 Part 3 the Civil Air Regulations.

Aviat Aircraft, Inc.

A-1, A-1A, A-1B, A-1C-180, A-1C-200 A22NM Installation of a Hartzell Propeller LLC model HC-C2YR-1N/NG8301-3 propeller in accordance with Alamo Aerospace Installation Instructions, No. 2301, Rev. B, dated June 24, 2014, or later FAA approved revision. FAA approved Alamo Aerospace Flight Manual Supplement, No. AFMS 55174-5, Rev. IR, dated August 25, 2014, or later FAA approved revision is required. Instructions for Continued Airworthiness are contained in Alamo Aerospace Report, 55174-6, Rev. IR, dated July 18, 2014.

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 the product, the holder must give the other person written evidence of that permission.

1/9/14 9/15/14 9/12/25 8/25/14 Bo R. Landess STC ODA administrator Hartzell Propeller ODA-100082-CE 2

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number  (IIHFWLYH'DWH I Transfer Endorsement Transfer the ownership of Supplemental Type Certificate Number:

Date oI transfer:

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## Every issue (2)

- September 12, 2025: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/b2/12/b2127d14bcf9086ab5cbb3e7f00ae41f2a768625da53e8835c83d212ef852933)
- September 15, 2014: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/25/20/252082c1429ffc7a8214c81f2f1ae953bb66784894eb4d270637d51c9252bd27)

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