# STC SA2927NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Metal Innovations Inc. dba MII Aero, United States
- Description: Installation of an AiResearch TE-0667 turbocharger on a Continental IO-520-D engine with McCauley D2A34C two-bladed propeller or Hartzell HC-C3YF-1RF/F9587C-15 three-bladed propeller. (A188B RESTRICTED)
- Applied: March 29, 1985
- Status date: February 25, 2025
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A9CE](https://openairdocs.org/tcds/A9CE)
- Certificate PDF: https://openairdocs.org/files/sha256/b9/f4/b9f4bc3d942b605bbfcc3d061b8b6e106b09a0985fe5e72c95bee572f2096bce
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100414295220250319143049.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2927NM

## ADs that name it (0)

None.

## Approved models (3)

- The Cessna Aircraft Company A188 ([TCDS A9CE](https://openairdocs.org/tcds/A9CE))
- The Cessna Aircraft Company A188A ([TCDS A9CE](https://openairdocs.org/tcds/A9CE))
- The Cessna Aircraft Company A188B ([TCDS A9CE](https://openairdocs.org/tcds/A9CE))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

FAA Form 8110-2 (03/21) Installation of Airesearch TE-0657 Turbocharger on a Continental I0-520-D engine with either a McCauley D2A34C series twobladed propeller or a Hartzell HC-C3YF-IRF/F9587C-15 three-bladed propeller (STC SA895SO) in accordance with Seaplane Flying, Inc. Assembly & Installation Instructions No. SFC 1882, dated March 15, 1985, or later FAA-approved revisions.

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 SA2927NM and Airplane Flight Manual Supplement, shall be maintained as part of the permanent records for the modified aircraft.

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.

SA2927NM Metal Innovations, Inc. dba MII Aero 2870 25th Street SE Salem, OR 97302 Part 21 Title 14 Federal Aviation Regulations A9CE Cessna A188, A188A & A188B (Restricted) March 29, 1985 12/29/2005; 3/26/2007; 5/12/2017; 02/25/2025 April 22, 1985 March 26, 2007 for Manager, West Certification Branch

Page 2 of 2 FAA Form 8110-2 (03/21) SA2927NM

## Every issue (4)

- February 25, 2025: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/b9/f4/b9f4bc3d942b605bbfcc3d061b8b6e106b09a0985fe5e72c95bee572f2096bce)
- May 12, 2017: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/e8/68/e8684632c6c10084dfa68093e18a6d2cfbc9786f07c425b827fddf9f5ac21c0c)
- March 26, 2007: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/24/1d/241d44793cb8f54350acb6d935371e43b8d6dab97c7220f758b1599cb5f72607)
- December 29, 2005: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/52/03/5203958a5d102ac6e435b389c75940626628b333e3b514decb8f82e623b46ceb)

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