# STC SA847EA

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Steve Pierce, United States
- Description: Installation of Lycoming O-320-A(150 hp) or O-320-B (160 hp) engine.
- Applied: June 1, 1968
- Status date: March 12, 2025
- Product: Aircraft, Small Airplane
- Data sheets: [TCDS 1A6](https://openairdocs.org/tcds/1A6)
- Certificate PDF: https://openairdocs.org/files/sha256/33/a3/33a3f76a2651bee980bd8cb5ac736a453572256662cd31b5279233def6da6a96
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID121861958520250407161042.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA847EA

## ADs that name it (0)

None.

## Approved models (1)

- The New Piper Aircraft Inc. PA-22-108 ([TCDS 1A6](https://openairdocs.org/tcds/1A6))

## 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.

SA847EA Steve Pierce 196 US Hwy 380 East Graham, TX 76450 3 Civil Air Regulations 1A6 Piper PA-22-108

1. J. A. Myers Supplement No. 1 dated October 15, 1970, to Piper PA-22-108 airplane flight manual is required for the 150 hp. or 160 hp. installation.

2. J. A. Myers Supplement No. 2 dated October 15, 1970, to Piper PA-22-108 airplane flight manual is required for the 125 hp. or 135 hp. installation.

(continued on Page 3) 6/1/1968 9/7/1976 3/12/2025 10/15/1970 4/7/1978 for Paul Nguyen Manager, Central Certification Branch Compliance & Airworthiness Division

3 Installation of a Lycoming 0-320-A2A (150 hp.) or 0-320-B (160 hp.) engine in accordance with Piper drawings No.

14474 Rev. AS and J. A. Myers Installation Instructions dated June 22, 1970, for installing a 150 hp. or 160 hp.

Lycoming engine in a Piper PA-22-108 airplane. -or- Installation of a Lycoming 0-290-D (125 hp.) or 0-290-D2 (135 hp.) engine in accordance with drawings No. 14474 Rev. AS and J. A. Myers Installation Instructions dated August 12, 1970 for installing a 125 hp. or 135 hp. Lycoming engine in a Piper PA-22-108 airplane.

SA847EA 03/12/25 3

SA847EA 03/12/25 Limitations and Conditions (continued):

3. This approval should not be extended to other specific airplanes of these models on which other previously approved modifications are incorporated unless it is determined that the inter-relationship between this change and any of those other previously approved modifications will introduce no adverse affect upon the airworthiness of that airplane. Compatibility of this modification with other previously approved modifications must be determined by the installer.

4. 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.

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## Every issue (1)

- March 12, 2025: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/33/a3/33a3f76a2651bee980bd8cb5ac736a453572256662cd31b5279233def6da6a96)

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