# STC SA00874SE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Teufel Nursery Inc, United States
- Description: Install two Pratt & Whitney PT6A-34 engines in place of
PT6A-28 engines per Master Document List TFL-PA31T-D01, Revision IR, dated November 29, 2000,
or later FAA approved revision. Inspect and maintain this modification in accordance with Instructions
for Continued Airworthiness, Document TFL-PA31T-R34, Revision IR, dated November 29, 2000, or
later FAA approved revision.
- Applied: June 13, 2001
- Status date: January 31, 2001
- Product: Aircraft
- Certification basis: Part 21, Part 23
- Data sheets: [TCDS A8EA](https://openairdocs.org/tcds/A8EA)
- Certificate PDF: https://openairdocs.org/files/sha256/00/71/0071ae081cebd62d0dd65ea9b794102da4265e087da296e69dde3bc666ecaa1e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FBD3D7F409C201778625796C005E2625.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA00874SE

## ADs that name it (0)

None.

## Approved models (1)

- Piper Aircraft Inc. PA-31T ([TCDS A8EA](https://openairdocs.org/tcds/A8EA))

## 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.

Number SA00874SE

This certificate, issued to Teufel Nursery, Inc.

3115 NE Cornell Road Hillsboro, OR 97124

Part 23 of the Federal Aviation Regulations.

Original ProductType Certificate Number: A8EA Make: Piper Model: PA-31T

Description of the Type Design Change: Install two Pratt & Whitney PT6A-34 engines in place of PT6A-28 engines per Master Document List TFL-PA31T-D01, Revision IR, dated November 29, 2000, or later FAA approved revision. Inspect and maintain this modification in accordance with Instructions for Continued Airworthiness, Document TFL-PA31T-R34, Revision IR, dated November 29, 2000, or later FAA approved revision.

Limitations and Conditions : Data pertaining to this modification are considered inadequate for installation of this modification in other aircraft. This approval is limited to the modification of Piper Model PA-31T airplane S/N 31T-7920046, R/N N700LT only. The aircraft must be operated in accordance with the FAA Approved Flight Manual Supplement (AFMS), Document TFL-PA31T-R33, dated January 31, 2001, or later FAA approved revision. Only the Hartzell Propeller Hub Model HC-B3TN-3(B) and Blade Model T-10173(B)-8 may be used with the PT6A-34 engines. A copy of this Certificate and FAA AFMS, dated January 31, 2001, must be maintained as part of the permanent records for this aircraft.

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.

Date of application: June 13, 2000 Date reissued:

Date of issuance: January 31, 2001 Date amended:

(Signature) Acting Manager, Seattle Aircraft Certification Office (Title)

## Every issue (1)

- January 31, 2001: Issued, Current. [certificate](https://openairdocs.org/files/sha256/00/71/0071ae081cebd62d0dd65ea9b794102da4265e087da296e69dde3bc666ecaa1e)

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