# STC SA5900NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Aeronautical Testing Service Inc., United States
- Description: Installation of a vortex generator system to improve low speed performance.
- Applied: July 16, 1992
- Status date: January 29, 1993
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE)
- Certificate PDF: https://openairdocs.org/files/sha256/dc/2e/dc2e0288c0e617af9599bc7c79d33d0769e2cdfa0e8ff6ca167a3f1e4deca6d3
- Approved model list and other attachments: [AML SA5900NM.pdf](https://openairdocs.org/files/sha256/91/2a/912a0a25d68759fd1d4b92a41bce18950c970bd04ef0071017324294d940c19d)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BB08776DA047F29185256CC200122C55.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA5900NM

## ADs that name it (0)

None.

## Approved models (7)

- Cessna Aircraft Company 401 ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- Cessna Aircraft Company 401A ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- Cessna Aircraft Company 401B ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- Cessna Aircraft Company 402 ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- Cessna Aircraft Company 402A ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- Cessna Aircraft Company 402B ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- Cessna Aircraft Company 414 ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))

## 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: SA5900NM This certificate issued to: Aeronautical Testing Service, Inc.

Purt 3 otheCivil Air Regulations.* Original Product -Type Certificate Number: ATCE Make: Cessna Model: See AML Description of Type Design Change: Installation of a vortex generator system to improve the low speed performance, in accordance with Drawing List ATS-414, Revision A, dated September 30, 1992, or later FAA approved revision.

Option 1: No change in VcA and stall speeds and no take-off weight increase; no AFMS required.

Option 2: Reduced YMcA and stall speeds and take-off weight increase; AFMS required per AML.

Note: For model 414 aircraft only, this STC is compatible with RAM STC's SA2354SW, Approval of this change in type design applies to the above model aircraft only. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the relationship 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. A copy of this Certificate, and Approved Model List dated January 29, 1993, must be maintained as part of the permanent This ces pod and the sif eding dads which is the bas for appral shall emuin in affel until sur rendered, suspended, veroked, or a lermination date is atherwise established by the Sidministrater of the Federal Aviation Administration .

Date of Application: JUTY 16, 1992 Jule vissued:

Date of Issuance: January 29, 1993 Date Amended:

FEDERAL VIATION lien of the Sidministratin as 10 Manager/ Special Celication Branch TAMIN STRATO Seattle Aircraft Certification Office (Tille)

47.

### AML SA5900NM.pdf

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

00 ITEMI Cessna MAKE AIRCRAFT 0801 - Up) 414+RAM (S/N 0451-0800) 414+RAM (S/N 0001-0450) 414+RAM(S/N 0801-Up) 1414 (S/N (0451-0800) 1414 (S/N 0001-0450) 414 (S/N 1001 - Up) 402B (S/N 501-1000) 402B (S/N 0001-0500) 402B (S/N 4OZA, 401B,402, 401,401A, MODEL AIRCRAFT A7CE NUMBER CERTIFICATE TYPE ORIGINAL Page 1 of 1 CAR, Part 3 ALTERATION FOR BASIS CERTIFICATION INSTALLATION OF VORTEX GENERATORS FAA APPROVED MODEL LTST (AML) NO. SA5900NM Date: FAA Approved: ATS -414 NUMBER January 29, 1993 Seattle Aircraft Certification Office Manager, Special Certification Branch = IA 9/30/92 AND DATE REVISION NO. DRAWING LIST DRAWING/ FAA APPROVED 1729/93 ATS 92-061 1/29/93 ATS 92-06h 1/29/93 ATS 92-06g 1/29/93 ATS 92-06f 1/29/93 ATS 92-06e 1/29/93 ATS 92-06d 1/29/93 ATS 92-06c 1/29/93 ATS 92-06b 1/29/93 ATS 92-06a NO. AND DATE INFORMATION FLIGHT MANUAL APPROVED Release) (Initial 1/29/93 DATE AMENDMENT AML

## Every issue (1)

- January 29, 1993: Issued, Current. [certificate](https://openairdocs.org/files/sha256/dc/2e/dc2e0288c0e617af9599bc7c79d33d0769e2cdfa0e8ff6ca167a3f1e4deca6d3), [AML SA5900NM.pdf](https://openairdocs.org/files/sha256/91/2a/912a0a25d68759fd1d4b92a41bce18950c970bd04ef0071017324294d940c19d)

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