# STC SA4758NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Aircraft Design Inc, United States
- Description: Installation of a Lycoming IO-360-A1B6D or IO-360-A3B6D engine modified.
- Applied: April 4, 1988
- Status date: November 9, 1990
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A3](https://openairdocs.org/tcds/2A3)
- Certificate PDF: https://openairdocs.org/files/sha256/78/fe/78fe828d86ca458c5d62d1d5a2d6a6ecee86606b01440ea16c7694450479fade
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/92BB7AF493D6A22685256CC2000E3E69.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA4758NM

## ADs that name it (1)

- [AD 93-14-15](https://openairdocs.org/ad/93-14-15): Instrument Panel Placard, · Lycoming Engines IO-360-A1B6D and IO-360-A3B6D with STC SA4758NM or SE4757NM. Effective Aug 23, 1993. Named in the applicability

## Approved models (1)

- Mooney Aviation Company Inc M20J ([TCDS 2A3](https://openairdocs.org/tcds/2A3))

## 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 SA4758NM This certificate issued to: Aircraft Design, Inc.

Purt 3 of the CiViT Air Regulations:

Original Product -Type bertificate Number: 2A3 Make: Mooney Model:

M20J Description of Type Design Change: Installation of a Lycoming 10-360-A1BED or 10-360- A3B6D engine modified in accordance with STC No. SE4757NM and a redesigned exhaust system and Weldon electric fuel pump (No. SK-6286), in accordance with Darwin C.

Conrad Drawing List No. DCC-20.00 dated July 27, 1989, and Installation Instructions No. DCC-20.00, dated August 1, 1989, or later FAA approved revision.

Limitations and Conditions: Approval of this change in type design applies to the of this model on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of Inose other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. A copy of dated August 18, this Certificate 1989, must be maintained as part of the permanent records for Did i fied tearch supperling dalu which is the basis for approval shall remain in effet until sunrendered, suspended, revked, or a termination date is sherwise as lablished by the Stdministrater of the Federal Aviation Administration .

Date of Application: April 4, 1988 Jule wissued: November 9, 1990 Date of Issuance: August 18, 1989 Date Amended:

FEDERAL AVIATION By directim of the SIdministrate Dand 97mie ( Sighalure TRAINIS RATO Seattle Aircraft Certification Office Manager, Aircraft Modification Branch (Tille)

47.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) NumbeR S5A0758M Limitations and Conditions: (continued) The following placards must be installed:

1. Below RAM air knob: INOP

**RAM AIR**

2. By fuel pump switches:

For additional high boost pump switch: High

i) Below high boost pump switch: Boost Pump ii) Left side of high boost pump switch: On Off OR

b) For dual boost pump switch: High Low On Off Boost Pumps

3. Checklist placard

a) Cover the words "RAM AIR" with black paint.

A finding of No Acoustic Change was made for this product under the provisions of FAR

21.93(b). Noise is unchanged from the basic aircraft.

Regulations - CAR Part 3, effective 11/1/49, as amended to 5/18/54, with Paragraphs

3.109, 3.112, 3.115, 3.118, and 3.120 of CAR 3, effective 5/15/56, as amended to 10/1/59; CAR 3.74 of Amendment 3-13, dated 8/25/55; FAR 23, Paragraphs 23.1441 through

23.1449, as amended to 6/17/70.

**FAA FORM B110-2-1 (10-69) PAGE 3 OF 3 PAGES**

## Every issue (1)

- November 9, 1990: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/78/fe/78fe828d86ca458c5d62d1d5a2d6a6ecee86606b01440ea16c7694450479fade)

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