# STC SA4030NM

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Firewall Forward Inc, United States
- Description: Installation of Lycoming IO-360-A1B6D or IO-360-A1B6 engine modified.
- Applied: November 23, 1987
- Status date: June 22, 1993
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A20CE](https://openairdocs.org/tcds/A20CE)
- Certificate PDF: https://openairdocs.org/files/sha256/fd/ed/fdedc310ca71bdda2c1d869c1a5855482a3cc52c1ebbafbf671f2f385265e596
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9B26DA06E178E55685256CC2000C604A.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4030NM

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 177RG ([TCDS A20CE](https://openairdocs.org/tcds/A20CE))

## 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: SA4030NM This certificate issued to: Firewall Forward, Inc.

Pure 23 of the Aviation Regulations:

Original Product -Type bertificate Number: A2OCE Make: Cessna Aircraft Company Model: 177RG Description of Type Design Change:

Installation of Lycoming I0-360-A1B6D or I0-360-A1B6 engine modified in accordance with the FAA approved Firewall Forward, Inc., STC SE2741NM and Report No. 2, dated July 18, 1988, or later FAA approved revision.

Feniffin are edito ane Flight Manual Supplement for Cessna Model 177RG, dated August 25, 1980 or later FAA approved revision is required.

2. This intallation is limited to Cessna Model 177RG aircraft with McCauley propeller models B2D34C206/78TA or B2D34C207/78TCA. Diameter limits: 78 inches maximum, 76.5 inches minimum.

Date of Application: November 23, 1987 Sule missued:

Date of Issuance: August 25, 1988 Date Amended: June 22, 1993 EDERAL AVIATION By Direction of the Administrator TO MINISTRATO ROGER P. CHUDY Northwest Mountain Region, Denver, Colorado Denver Aircraft Certification Field Office (Signalure) Acting Manager (Title )

47.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA40301M Limitations and Conditions:

Approval of this change in type design applies to the above model aircraft only.

This approval should not be extended to aircraft 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 the aircraft. A copy of this Certificate must be maintained as part of the permanent records for the modified aircraft.

- --END- - - - - -

FAA FORM 8110-2-1 (10-69) TRANSPORT AIRPLANE DIRECTORAFEe may be transferred in accordance with FAR 21.47.

## Every issue (1)

- June 22, 1993: Amended, Current. [certificate](https://openairdocs.org/files/sha256/fd/ed/fdedc310ca71bdda2c1d869c1a5855482a3cc52c1ebbafbf671f2f385265e596)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.