# STC SA00364BO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Weston B Liu, United States
- Description: Counterbalance Plates
- Applied: November 19, 2015
- Status date: February 19, 2016
- Product: Aircraft, Small Airplane
- Certification basis: Part 21, Part 23
- Data sheets: [TCDS A8SO](https://openairdocs.org/tcds/A8SO)
- Certificate PDF: https://openairdocs.org/files/sha256/9b/e4/9be4a2fdf44d25cef9ddf916b11b8f55d9bc4f7731671083ecced7223a97d363
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F5B50925E0BA6C7E86257F86007129B4.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA00364BO

## ADs that name it (0)

None.

## Approved models (1)

- Aviat Aircraft Inc S-2A ([TCDS A8SO](https://openairdocs.org/tcds/A8SO))

## 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.

Number SA00364BO

FAA Form 8110-2 (8/13) Page 1 of 3 This certificate issued to:

Weston B. Liu 105 Mason Rd Brookline, NH 03033 Part 23 of the Federal; Aviation Regulations.

Original Product - Type Certificate Number: A8SO Make: Aviat Aircraft Inc.

Model: S-2A Serial number: 2068 Registration number: N78PS

Description of Type Design: Aviat Aircraft Aileron Counterbalance Plates. This is a one only STC

Limitations and Conditions: (continued on page 3 of 3)

1. Maintenance must be in accordance with Instructions for Continued Airworthiness (ICA), Document number LIU-M-16-001, Rev 01, dated January 10, 2015, or later FAA accepted revision. The ICA must be made available to the operator at the time of installation.

2. Compatibility of this design with previously approved modifications must be determined by the installer

Date of Application: November 19, 2015 Date reissued:

Date of Issuance: February 19, 2016 Date amended:

Signature Robert G. Mann

Manager, Boston Aircraft Certification Office Title

**SUPPLEMENTAL TYPE CERTIFICATE, FAA FORM 8110-2 (CONTINUED)**

FAA Form 8110-2 (8/13) Page 2 of 3

**TRANSFER**

**ENDORSEMENT**

To (Name of transferee)

(Address of transferee)

(Number and street)

(City, State, and ZIP Code)

From (Name of grantor)

(Address of grantor)

(Number and street)

(City, State, and ZIP Code)

Number SA00364BO February 19, 2016

FAA Form 8110-2 (8/13) Page 3 of 3

3. You cannot use descriptive data about this design change to duplicate other products. This approval is limited to only the installation made in Aviat Aircraft Model S-2A, Serial Number 2068. This STC does not permit manufacturing of parts for multiple installations, such as a PMA.

Certification Basis:

Based on 14 CFR § 21.115 and § 21.101, and the FAA policy for design changes that are identified as not significant in FAA Order 8110.48, the certification basis for the Aviat Aircraft Model S-2A aircraft is as follows:

a. The type certification basis for parts not changed or not affected by the change is shown on TCDS A8SO.

b. The modification certification basis for parts changed or affected by the change since the reference application date, November 19, 2015, is based upon part 23 as amended by Amendment 23-62 as follows:

Regulations at the latest amendment 23-0 through 23-62

23.303, 23.307(a), 23.609, 23.693 Regulations at an intermediate amendment

23.1529 at 23-26 Regulations at the amendment level in TCDS A8SO

23.301, 23.305, 23.603, 23.605, 23.611, 23.613, 23.629, 23.683, 23.685, 23.779, 23.1301

------------------------------------------------------------END-------------------------------------------------------

## Every issue (1)

- February 19, 2016: Issued, Current. [certificate](https://openairdocs.org/files/sha256/9b/e4/9be4a2fdf44d25cef9ddf916b11b8f55d9bc4f7731671083ecced7223a97d363)

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