# STC SA5998SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: RAM Aircraft Limited Partnership, United States
- Description: Installation of Teledyne Continental TSIO-520-NB engines as modified by STC SE4327SW and Hartzell PHC-C3YF-2UF/FC7663D-2Q or PHC-C3YF-2UF/FC7663DB-2Q propellers.
- Applied: April 3, 1985
- Status date: August 28, 2008
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE)
- Certificate PDF: https://openairdocs.org/files/sha256/6f/44/6f44362f6f9947f302446f5c7ad0dd1673ccc2eaf8b97af69fbde0dd2b6e9f2c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E7A0D3F9E58B1ACA8625793E006AA5DB.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5998SW-D

## ADs that name it (0)

None.

## Approved models (1)

- 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 0)f America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA5998SW.D This certificate issued to: RAM Aircraft, Limited Partnership 7505 Karl May Drive Waco, TX 76708 Certifies that the change in the type design for the following product with the limitations and conditions therefor as specified hereon meet's the airworthiness requirement's of Part 3 of the Civil Abir Regulations.

Original Product Typo Certificate Number : A7CE Make: Cessna Model: 414 Description of Type Design Change: Installation of Teledyne Continental TSIO-520-NB engines as modified by STC SE4327SW-D and Hartzell PHC-C3YF-2UF/FC7663D-2Q or PHC-C3YF-2UF/FC7663DB-2Q propellers in accordance with Drawing. No. 1011, Rev. D, dated January 31, 1985 or later FAA approved revision. Increase max.

takeoff weight to 6510 Ibs. max. ramp weight to 6550 lbs., and max. continuous power to 325 h.p. in accordance with RAM Aircraft, Limited Partnership Report No. 85-5 and Report No. 85-19, Rev. A, dated September 12, 1985, or later Limitations and Conditions: .

1. FAA approved airplane flight manual supplement dated August 26, 1988, or FAA approved airplane flight manual supplement dated September 4, 1986, (or later FAA approved revision) is required when aircraft engines are modified per STC SE4327SW-D incorporating RAM economy camshaft.

Date of Application: April 03, 1985 Date Reissued: October 8, 2001; February 12, 2008;

August 28, 2008 Date of Issuance: September 12, 1985 Date Amended: September 5, 2008; August 26, 1988 Revision 2 FEDERAL AVIATION By Direction of the Administrator

ORIGINAL SIGNED BY TERRY BOWDEN (Signature) TOMINSTRATO Terry L. Bowden DAS administrator DAS-700100-SW RAM Aircraft LP Waco, Texas (Title) 47

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA59985W.D Date of Issuance: September 12, 1985 Date Amended: August 26, 1988 Reissuance Date: August 28, 2008 Limitations and Conditions: (Continued):

2. Gross weight increases and maximum continuous power increases require the installation of STC SE4327SW-D.

3. This STC is not valid unless airplane has been modified per STC SA48NW.

4. The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

FAA Form 8110-2-1110-69) Page 3 of 3

## Every issue (1)

- August 28, 2008: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/6f/44/6f44362f6f9947f302446f5c7ad0dd1673ccc2eaf8b97af69fbde0dd2b6e9f2c)

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