# STC SA4927NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Merlyn Products Inc., United States
- Description: Install Teledyne Continental engines, models LTSIO/TSIO-360-E, -EB, and-KB, modified by STC SE4731NM.
- Applied: June 20, 1989
- Status date: April 23, 1990
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A7SO](https://openairdocs.org/tcds/A7SO)
- Certificate PDF: https://openairdocs.org/files/sha256/e9/22/e9227a4ebc12aa4fc4a025fa13dde49660d7534b7a4b3827c46271e91f770789
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CD218576F7538B9E85256CC2000E3FB5.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4927NM

## ADs that name it (0)

None.

## Approved models (2)

- Piper Aircraft Inc. PA-34-200T ([TCDS A7SO](https://openairdocs.org/tcds/A7SO))
- Piper Aircraft Inc. PA-34-220T ([TCDS A7SO](https://openairdocs.org/tcds/A7SO))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SA4927NM This certificate issued to: Merlyn Products Purt 23 of the Federal Air Regulations.

Original Product - Type Certificate Number: A7SO Make: Piper Aircraft Corporation Model: PA-34-200T & PA-34-220T Description of Type Design Change: Install Teledyne Continental engines, models LTSIO/TSIO-360-E, -EB, and -KB, modified by STC SE4731NM, in accordance with Merlyn Products, Inc. top Drawing List 20-TDL-1 dated December 30, 1989, or later FAA approved revision.

Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only. This approval should not be extended to aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those or other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft (continued on Continuation Sheet).

- END -

**FAA FORM B110-2-1 (10-69)**

## Every issue (1)

- April 23, 1990: Issued, Current. [certificate](https://openairdocs.org/files/sha256/e9/22/e9227a4ebc12aa4fc4a025fa13dde49660d7534b7a4b3827c46271e91f770789)

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