# STC SA4077NM

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Univair Aircraft Corporation, United States
- Description: Installation of replacement aft fuselage section.
- Applied: December 21, 1989
- Status date: March 7, 2000
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A2](https://openairdocs.org/tcds/1A2)
- Certificate PDF: https://openairdocs.org/files/sha256/be/a6/bea6db2987fff0ca85fc7930d2cb73d3666915791850edfad703dd91ab308ded
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D610595DCEE397AA85256CC2000C609F.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4077NM

## ADs that name it (0)

None.

## Approved models (16)

- Piper Aircraft Inc. PA-18 ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- Piper Aircraft Inc. PA-18-105 (Special) ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- 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-18-150 ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- Piper Aircraft Inc. PA-18A ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- Piper Aircraft Inc. PA-18A-135 ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- Piper Aircraft Inc. PA-18A-150 ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- Piper Aircraft Inc. PA-18AS-125 ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- Piper Aircraft Inc. PA-18AS-135 ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- Piper Aircraft Inc. PA-18AS-150 ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- Piper Aircraft Inc. PA-18S ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- Piper Aircraft Inc. PA-18S-105 (Special) ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- Piper Aircraft Inc. PA-18S-125 ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- Piper Aircraft Inc. PA-18S-135 ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- Piper Aircraft Inc. PA-18S-150 ([TCDS 1A2](https://openairdocs.org/tcds/1A2))

## 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: SA4077NM This certificate issued to: Univair Aircraft Corporation 2500 Himalaya Road Aurora, CO 80011 Part 3 of the Civil Air Regulations.

Original Product -Type Certificate Number: 1A2 Make:

Model: PA-18, PA-18"125" (Army L-21A), PA-18A, PA-18"135" (Army L-21B), PA-18A"135", PA-18"105" (Special), PA-18S, PA-18S"125", PA-18S"135", PA-18AS" 125", PA-18AS"135", PA-18S"105" (Special), PA-18"150", PA-18A"150", PA-18S"150", PA-18AS"150" Description of Type Design Change:

Installation of replacement aft fuselage section in accordance with FAA approved Rocky Mountain Airframe, Inc., Report No. 6825, Revision E, dated January 15, 1996, or later FAA approved revision.

1. An alternate means of compliance with AD 81-06-08 has been accepted as part of this approval. Therefore, compliance with this AD is no longer required.

2. 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 interrelationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft.

3. A copy of this Certificate must be maintained as part of the permanent records for the modified aircraft.

4. 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.

Date of Application: December 21, 1989 Date Reissued: 1/3/92, June 21, 1999 Date of Issuance: April 6, 1990 Date Amended: 4/30/96, March 7, 2000 FEDERAL AVIATION By Direction of the Administrator Da 9T. Mos.

DAVID T. GROSSMAN (Signature) Acting Manager ADMINISTRATION Northwest Mountain Region, Denver, Colorado Denver Aircraft Certification Office (Title)

## Every issue (1)

- March 7, 2000: Amended, Current. [certificate](https://openairdocs.org/files/sha256/be/a6/bea6db2987fff0ca85fc7930d2cb73d3666915791850edfad703dd91ab308ded)

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