# STC SA5198NM

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Aeronautical Testing Service, United States
- Description: Installation of vortex gnerators on the wing and vertical tail and a5% increase in takeoff weight.
- Applied: April 8, 1991
- Status date: June 21, 1993
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A25](https://openairdocs.org/tcds/3A25)
- Certificate PDF: https://openairdocs.org/files/sha256/94/ba/94ba16fb74d4483d856ae1c8d12e98f168b909bceaba5f8c2a0264e645e1c8aa
- Approved model list and other attachments: [AML SA5198NM.pdf](https://openairdocs.org/files/sha256/ff/16/ff162a5e9c557dc1a31ebdba0c16e4a5d27bf4e7d7feb35de94e36f7f6fa7362)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/98A6D24D780CEF4085256CC20012276D.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA5198NM

## ADs that name it (0)

None.

## Approved models (3)

- Cessna Aircraft Company 335 ([TCDS 3A25](https://openairdocs.org/tcds/3A25))
- Cessna Aircraft Company 340 ([TCDS 3A25](https://openairdocs.org/tcds/3A25))
- Cessna Aircraft Company 340A ([TCDS 3A25](https://openairdocs.org/tcds/3A25))

## 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 5A5198NM This certificate issued to: Aeronautical Testing Service Purt 3 of the CIVIl Air Regulations: * Original Product -Type Certificate Number: 3A25 Make: Cessna Model: See attached Approved Model List (AML) SA5198NM for approved models and configurations Desorplion olype Design thange: Installation of vortex generators on the wing anc vertical tail and a 5% increase in takeoff weight in accordance with Drawing List DL- 340, dated August 9, 1991.

The following options are available with this STC:

Option 1: No changes in airspeeds: AFMS not required.

Option 2: Reduced Vmca and stall speeds; AFMS required.

Option 3: Reduced V and stall speeds; 5% increase in takeoff weight; AFMS required Limitations and Conditions: 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 appropriate FAA Approved Flight Manual Supplement, affect upon the airworthiness of that aircraft. A copYater FAA approved revisions, must be maintained as part of the permanent records for the modified aircraft.

This certificate and the supporting data which is the basis for approval shall remain in ifeel until sur rendered, suspended, revsked; or a lermination dale is sherwise is lablished by the Adminis toler of the Federal Aviation Administration Dalesapplicaliose: April 8, 1991 Sule missued:

Date of Issuance: November 15, 1991 Date Amended: July 29, 1992, June 21, 1993 FEDERAL AVIATION jalaler ( Signature ) TOMINIST RAN O Manager, Special Certification Branch Seattle Aircraft Certification Office (Title)

### AML SA5198NM.pdf

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

AFMS ¡Not required LATS 91-04 j JATS 91-04 a Not required JATS 91-04 k ATS 91-04 ATS 91-04 n LATS 91-04 o Fowler Flaps SA474NW ATS 91-04 q Fowler Flaps SA474NW ATS 91-04 r ATS 91-04 b LATS 91-04 c Fowler Flaps SA474NW ATS 91-04 Fowler Flaps SA474NW ATS 91-04 LATS 91-04 LATS 91-04 h ¡Not required ATS 91-04 j ATS 91-04 Fowler Flaps SA474NWIATS 91-04 p ATS 91-04 a Fowler Flaps SA474NW ATS 91-04 d ATS 91-04 g Manager, Special Certification Branch Seattle Aircraft Certification Office ASSOCIATED STC SA2346SW SA2346SW SA2346SW SA2346SW SA4241SW SA4241SW ' Leman 21,1993 SA5198NM LANDING WEIGHT 5990 5990 5990 5975 5975 5975 5975 5975 5975 5975 5975 5975 5975 5975 5975 5975 5990 5990 5990 5990 5990 5990 5990 FAA APPROVED MODEL LIST (AML) NO. AERONAUTICAL TESTING SERVICE TAKEOFF WEIGHT 5990 5990 6305 5975 5975 5975 5975 5975 5975 5975 6305 6305 6305 6305 6305 6305 5990 5990 5990 5990 6305 6305 6305 FAA Approved: Date:

ENGINE RATING (HP) 300 300 310 285 310 310 325 325 310 310 310 310 310 310 325 325 310 310 325 310 310 310 325 Page 1 of 1 OPTION N - N333933I222339 AIRCRAFT S/N A11 A11 A11 A11 10001-0300 10300 & up 10001-0300 10301 & up 10001-0300 10301 & up 10001-0300 10301 & up 0001-0300 up 0001-0300 & up 0301 0301 AIRCRAFT MODEL 335 335 335 340 340 340 340 340 340 340 OA OA

- t CESSNA I

**A/C MAKE**

## Every issue (1)

- June 21, 1993: Amended, Current. [certificate](https://openairdocs.org/files/sha256/94/ba/94ba16fb74d4483d856ae1c8d12e98f168b909bceaba5f8c2a0264e645e1c8aa), [AML SA5198NM.pdf](https://openairdocs.org/files/sha256/ff/16/ff162a5e9c557dc1a31ebdba0c16e4a5d27bf4e7d7feb35de94e36f7f6fa7362)

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