# STC SA388EA

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Steve Pierce, United States
- Description: Installation of engine and propeller
- Applied: June 18, 1965
- Status date: March 12, 2025
- Product: Aircraft, Small Airplane
- Data sheets: [TCDS 1A2](https://openairdocs.org/tcds/1A2)
- Certificate PDF: https://openairdocs.org/files/sha256/1f/08/1f086284b606d4dde3011d50e5b6759f15f64e50a9782ab37891d52db75ce9fa
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186852725820250407160832.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA388EA

## ADs that name it (0)

None.

## Approved models (3)

- Piper Aircraft Inc. PA-18-125 (Army L-21A) ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- Piper Aircraft Inc. PA-18-135 ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- Piper Aircraft Inc. PA-18A-135 ([TCDS 1A2](https://openairdocs.org/tcds/1A2))

## 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.

SA388EA Steve Pierce 196 US Hwy 380 East Graham, TX 76450 3 Civil Air Regulations 1A2 Piper PA-18-125, PA-18-135, PA-18A-135

1. Configuration I consistent with J. A. Myers Flight Manual Supplement dated July 19, 1966.

2. Configurations II consistent with "J. A. Myers Approved Airplane Flight Manual Supplement, Revision 1", dated March 6, 1972.

(continued on Page 3) 6/18/1965 9/7/1976 3/12/2025 7/19/1966 3/6/1972 for Paul Nguyen Manager, Central Certification Branch Compliance & Airworthiness Division

3 Configuration I: Installation of Lycoming 0-320, 0-320-A2A or 0-320-A2B engine (150 hp.) and Sensenich Propeller M74DM-56 in accordance with J. A. Myers Installation Manual dated June 18, 1965.

Configuration II: Increase in maximum allowable gross weight and C.G. limits as per model PA-18-150 values in accordance with J. A. Myers "Instructions for Gross Weight Increase-PA18" and drawings JM-10 and JM-11.

SA388EA 03/12/25 3

SA388EA 03/12/25 Limitations and Conditions (continued):

2. 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.

3. 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.

----------------------------------------------------------END---------------------------------------------------- 3 3 Add Page

## Every issue (2)

- March 12, 2025: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/1f/08/1f086284b606d4dde3011d50e5b6759f15f64e50a9782ab37891d52db75ce9fa)
- September 7, 1976: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/a2/04/a2046e17fe14f43be8ab9a49910a761740a04cf1383a88937de54cf214cd8b14)

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