# STC SA3311NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Seaplane Flying Inc, United States
- Description: Installation of Airesearch TE-0657 Turbocharger, Continental IO-520-D engine, McCauley D2A34C58/90AT-8 propeller and associated systems
- Applied: October 11, 1985
- Status date: December 20, 1985
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 5A6](https://openairdocs.org/tcds/5A6)
- Certificate PDF: https://openairdocs.org/files/sha256/4c/47/4c476bfa3aa7217afabc0f1b8862e180dfcc982af4d91932c136b3c3bb043960
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/34F9DEEB2E9F356B86257A14004B2C92.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3311NM

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 180H ([TCDS 5A6](https://openairdocs.org/tcds/5A6))

## What the certificate says

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

nited States of Slarrica Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SA3311NM This certificate issued to: Seaplane Flying, Inc.

Certifies that the change in the type design for the following product with the limitations and conditions thorefor as specified horon meets the airvorthiness requivements of Part 3 of the CIVI I Alr Regulations:

Original Product - Type lacrificate Number: 5A6 Make: Cessna Model: 180H Description of Type Design Change:

Installation of Airesearch TE-0657 Turbocharger, Continental I0-520-D engine, McCauley D2A34C58/90AT-8 propeller and associated systems in accordance with Seaplane Flying, Inc. Assembly and Installation Instruction No. SFC 1803, dated November 3, 1985, or later FAA approved revisions.

Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Cessna Model 180H aircraft, Serial Number 18051962 only. A copy of this Certificate and the Airplane Flight Manual Supplement dated December 20, 1985, or later FAA approved revision, shall be maintained as part of the permanent records of the modified aircraft.

Date of Application: October 11, 1985 Date Reissued:

Date of Issuance: December 20, 1985 Date Amended:

FEDERAL VIATION By Direction of the Administrator OMINISTRATO , Seattle Aircraft Certification Office (Title) 47

## Every issue (1)

- December 20, 1985: Issued, Current. [certificate](https://openairdocs.org/files/sha256/4c/47/4c476bfa3aa7217afabc0f1b8862e180dfcc982af4d91932c136b3c3bb043960)

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