# STC SE3361NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Ron & John's Comanche Service, United States
- Description: Installation of a vacuum pump on the hydraulic pump pad.
- Applied: January 16, 1986
- Status date: April 15, 1986
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1E4](https://openairdocs.org/tcds/1E4)
- Certificate PDF: https://openairdocs.org/files/sha256/ac/b6/acb60efdf791402bc8d444fc7b7bfd13f8de884ab458e1cdd3d5d0b02ccf682a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/31F876FA1FB0AEE785256CC2005A7527.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SE3361NM

## ADs that name it (0)

None.

## Approved models (3)

- Textron Lycoming AVCO Corporation IO-540-D4A5 ([TCDS 1E4](https://openairdocs.org/tcds/1E4))
- Textron Lycoming AVCO Corporation IO-540-N1A5 ([TCDS 1E4](https://openairdocs.org/tcds/1E4))
- Textron Lycoming AVCO Corporation IO-540-R1A5 ([TCDS 1E4](https://openairdocs.org/tcds/1E4))

## 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: SE3361NM This certificate issued to: Ron and John's Comanche Service Part 13 of the CiVil Air Regulations, dated June 15, 1956 as Amended by 13-1, 13-2 and 13-3.

Original Product Type Perlificate Number 1E4-11 Make: AVCO Lycoming Model: 10-540-D4A5, -N1A5, and -R1A5 Description of Type Design Change:

Installation of a vacuum pump on the hydraulic pump pad per Ron and John's Comanche Service Instructions, dated April 2, 1986.

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 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 must be maintained as part of the permanent records for the modified engine.

Date of Application: January 16, 1986 I ute ressued I ate of carmence April 15, 1986 Date Amended:

VEDERAL AVIATION By Direction of the Administrator William B Ashworth ( Signature ) Manager, Seattle Aircraft Certification Office (Title) 000, or imprisonment not exceeding 3 years, or bath Thit certifonte mas ha frantiarted in L END 91 1

## Every issue (1)

- April 15, 1986: Issued, Current. [certificate](https://openairdocs.org/files/sha256/ac/b6/acb60efdf791402bc8d444fc7b7bfd13f8de884ab458e1cdd3d5d0b02ccf682a)

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