# STC SA1777NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Michael E Evans, United States
- Description: Installation of nitrate and butyrate dope over the stits polyfiber cover
- Applied: October 22, 1982
- Status date: February 10, 1983
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-691](https://openairdocs.org/tcds/A-691)
- Certificate PDF: https://openairdocs.org/files/sha256/9c/1d/9c1db17cf4618c513bed947e24cd3dd03e4c68b04c62585eec800acf038acc9a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8E61AE15C7F06999862579FE0072250A.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1777NM

## ADs that name it (0)

None.

## Approved models (1)

- Piper Aircraft Inc. J3C-65 (Army L-4; L-4A; L-4B (Navy NE-1); L-4H; L-4J (Navy NE-2)) ([TCDS A-691](https://openairdocs.org/tcds/A-691))

## 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 SA1777NM This certificate issued to: Michael E. Evans Purt 48 of the CIVIL AIT Pregulations Original Product - Type bertificate Number: A-691 Make: Piper Model: J3C-65 Description of Type Design Change: Installation of nitrate and butyrate dope over the stits polyfiber cover in accordance with Jack E. Roberson Installation Instructions No. 24632 dated October 19, 1982.

Limitationsundbandituna: Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Piper, Model J3C-65, Serial Number 3320 only. A copy of this Certificate shall be maintained as part of the permanent records for the modified aircraft.

Date of Application: October 22, 1982 Date Reissued:

Date of Issuance: February 10, 1983 Date Amended:

FEDERAL NUTATION Rey ingred tedion (Signature) TOMINISTRA Acting Manager, Seattle Aircraft Certification Office, ANM-100S (Title)

## Every issue (1)

- February 10, 1983: Issued, Current. [certificate](https://openairdocs.org/files/sha256/9c/1d/9c1db17cf4618c513bed947e24cd3dd03e4c68b04c62585eec800acf038acc9a)

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