# STC SA781EA

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Revo Inc, United States
- Description: Conversion of the Lake LA-4 Amphibian to LA-4 Seaplane.  Modifications consist primarily of removing landing gears and covering resultant openings with skin in accordance with Aerofab, Inc. drawing list dated January 30, 1969.
- Applied: February 6, 1969
- Status date: September 30, 2004
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A13](https://openairdocs.org/tcds/1A13)
- Certificate PDF: https://openairdocs.org/files/sha256/db/b7/dbb7ac35c186c4a16f8f551f0ba2b5d6cac7fba7f747de7865812b319ebadd48
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1BAF04FECC42A1FA86256F8600695C63.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA781EA

## ADs that name it (0)

None.

## Approved models (1)

- REVO Incorporated Lake LA-4 ([TCDS 1A13](https://openairdocs.org/tcds/1A13))

## 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 SA781EA This certificate issued to Revo, Incorporated 1396 Grandview Boulevard Kissimmee, Florida 34744

Part 03 of the Civil Air Regulations.

Original Product--Type Certificate Number : 1A13 Make : REVO Model : Lake LA-4

Description of Type Design Change: Conversion of the Lake LA-4 Amphibian to LA-4 Seaplane. Modifications consist primarily of removing landing gears and covering resultant openings with skin in accordance with Aerofab, Inc.

drawing list dated January 30, 1969.

Limitations and Conditions: This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated, unless it is determined by the installer that the interrelationship between this change and any other previously approved modifications will produce no adverse effect upon the airworthiness of that airplane. 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. Aerofab, Inc. Supplement No. 3 approved October 3, 1969 to Lake LA-4 Flight Manual, must be aboard the aircraft when this modification is accomplished.

Date of application : February 06, 1969

Date of issuance : July 08, 1969 Date reissued : October 06, 1989; November 20, 2002;

September 30, 2004 Date amended : November 23, 1969

( Signature) Melvin D. Taylor Manager Atlanta Aircraft Certification Office

(Title)

## Every issue (1)

- September 30, 2004: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/db/b7/dbb7ac35c186c4a16f8f551f0ba2b5d6cac7fba7f747de7865812b319ebadd48)

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