# STC SA407NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Collins Aviation Inc, United States
- Description: Installation of a Brittian Model B-4 flight control system
- Applied: January 25, 1977
- Status date: February 11, 1977
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 3A10](https://openairdocs.org/tcds/3A10)
- Certificate PDF: https://openairdocs.org/files/sha256/a8/fd/a8fd189b9a289ea796a321a7e0e2c145df991938d935b831148ce505d22d16f1
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/98915538C2E5AEBB86257AD30065ED46.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA407NW

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 310N ([TCDS 3A10](https://openairdocs.org/tcds/3A10))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America STe Book Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SA407NW This certificate issued to: COLLINS AVIATION, INC.

Purt 3 of the Civil Nit Kuyululions, Dated November 1, 1949.

Original Product - Type bertificute Number: 3A10 Matic: Cessna Martel: 310N Jescriplions/Type sign Chunge: Installation of a Brittian Model B-4 flight control system according to Brittian Installation Manual 11942-9.

Limilalinandbonditis: Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Cessna Model 310N Serial Number 0162 only. A copy of this Certificate and Addendum No. SA407NW shall be maintained as part of the permanent records for the modified aircraft.

Late f ofplicution: January 25, 1977 Date Reissued:

Sale of smarce: February 11, 1977 Date Amended:

AVIATIO By Direction of the Administrator Aliase len TOM NISTRATO Chief, Engineering and Manufacturing Branch An elatter of ths able by a fine of rot exceeding S1,000, or impromment not exceedme 3 reas, or both TANt 0110-2 (10-50) This certificate may be transferred to arrordane cout BA2 21.42

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Shect) February 11, 1977 Supplemental Type Certificate ADDENDUM NO. . SA407NW The conditions and limitations of Type Certificate Data Sheet Number 3A10 apply except where superseded by the following:

Supplemental Type Certificate Data Sheet, which is part of STC SA407NW, prescribes the conditions and limitations under which the product for which the STC was issued meets the airworthiness requirements of the Federal Aviation Regulations:

I. CESSNA 310N (LANDPLANE - NORMAL CATEGORY) AS MODIFIED BY SIC SA407NW Engine Reference Data Sheet 3A10 Engine Limits: Reference Data Sheet 3A10 Fuel: Reference Data Sheet 3A10 Propeller: Reference Data Sheet 3A10 Propeller Limits: Reference Data Sheet 3A10 Serial Number Eligible: 0162 only Airspeed Limits: Reference Data Sheet 3A10 Maximum Weight: Reference Data Sheet 3A10 Powerplant Instrument Markings: Reference Data Sheet 3A10 Airspeed Markings: Reference Data Sheet 3A10 Placards: Applicable when Brittian B-4 auto pilot installed:

**USE AUTO PILOT FOR**

**CRUISING FLIGHT ONLY**

47.

**PAGE 3 OF 3 PAGES C FAA AC 73-2651**

## Every issue (1)

- February 11, 1977: Issued, Current. [certificate](https://openairdocs.org/files/sha256/a8/fd/a8fd189b9a289ea796a321a7e0e2c145df991938d935b831148ce505d22d16f1)

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