# STC SA368EA

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: PC6-AU23 Spares LLC, United States
- Description: Installation of AiResearch engine Model TPE 331-25D, TPE 331-25DA, TPE-25DB, or TPE 331-71 and Hartzell propeller Model HC-B3TN-5C/T10178C.
- Applied: August 8, 1965
- Status date: October 25, 2023
- Product: Aircraft, Small Airplane
- Data sheets: [TCDS 7A15](https://openairdocs.org/tcds/7A15)
- Certificate PDF: https://openairdocs.org/files/sha256/1b/30/1b30b1b8cd2e4b2568f03274c623fc363b86c1611c25b5b0ce1cfc8e5b2342c2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID106977330120250701163605.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA368EA

## ADs that name it (0)

None.

## Approved models (2)

- Pilatus Aircraft Limited PC-6/A-H2 ([TCDS 7A15](https://openairdocs.org/tcds/7A15))
- Pilatus Aircraft Limited PC-6/C-H2 ([TCDS 7A15](https://openairdocs.org/tcds/7A15))

## 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.

the Civil Air Regulations.

SA368EA PC6-AU23 Spares, LLC 37 Styles Way Lagrangeville, NY 12540 Part 3

7A15 Pilatus PC-6/A-H2, PC-6/C-H2

1. This modification requires Fairchild PC-6/C-H2 Heli-Porter FAA Approved Fairchild Flight Manual, dated April 20, 1966, including Revisions through No. 2, dated August 26, 1968, plus Supplement No.

8, dated January 30, 1973.

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

(Limitations and Conditions continued on Page 3 of 3) 08/05/1965 08/30/1968 10/14/1988 04/22/1966 09/23/1966 11/30/1966 08/30/1968 ✔ Christina M. Underwood Manager, East Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 3 Installation of AiResearch Engine Model TPE 331-25D, TPE 331-25DA, TPE-25DB or TPE 331-71 and Hartzell Propeller Model HC-B3TN-5C/T10178C in accordance with applicable drawing noted in Fairchild Industries lnc. Drawing List RPC-151, Revision G, dated August 23, 1968, through Revision O, dated December 15, 1972, plus drawing F8B 6656.5031, dated December 13, 1972, for cockpit utility light installation.

01/31/1973

SA368EA 10/25/2023 3

SA368EA 10/25/2023 Date Reissued Continued: 6/30/1994, 6/27/2003, 10/25/2023

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

-----------------------------------------------------END---------------------------------------------------------

## Every issue (1)

- October 25, 2023: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/1b/30/1b30b1b8cd2e4b2568f03274c623fc363b86c1611c25b5b0ce1cfc8e5b2342c2)

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