# STC SA935NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: American Avionics Inc, United States
- Description: Relocation of the aircraft battery to a position 4 inches aft of the original location
- Applied: April 7, 1980
- Status date: May 8, 1980
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A20SO](https://openairdocs.org/tcds/A20SO)
- Certificate PDF: https://openairdocs.org/files/sha256/1c/ae/1caeae20ac5064373bcccbbe681f925dc5afed12a3c75fb44d4410a574b19a6b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/81B8AFAE9C926D9286257A3F0054A1AD.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA935NW

## ADs that name it (0)

None.

## Approved models (1)

- Piper Aircraft Inc. PA-31-350 ([TCDS A20SO](https://openairdocs.org/tcds/A20SO))

## 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: SA935NW This certificate issued to: American Avionics, Inc.

Part 3 of the CiViI Air Regulations.

Original Product - Type Certificate Number: A2050 Make: Piper Mirtel: PA-31-350 Description of Type Design Change: Relocation of the aircraft battery to a position 4 inches aft of the original location in accordance with American Avionics, Inc.

photographs 1 through 6.

The battery relocation is accomplished to accommodate the installation of a one unit R/T flat-plate antenna of the RCA Model 200 color weather radar system.

Limitations and Conditions: Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Piper PA-31-350, Serial Number 31-8052061 only. A copy of this Certificate shall be maintained as part of the permanent records of the modified aircraft.

This certificate and the supporting data which is the basis for approval shall remain in effect until sur rendered, suspended, revoked, or a termination date is stherwise established by the Administrator of the Federal Aviation Administration Date of Application: Apri1 7, 1980 Date Reissued:

Date of Issuance: May 8, 1980 Date Amended:

FEDERAL AVIATION Chases Attrides (Signature ) T MINISTRATO Chief, Engineering and Manufacturing Branch (Title) 47 FAA FORM 8110-2 (10-68)

## Every issue (1)

- May 8, 1980: Issued, Current. [certificate](https://openairdocs.org/files/sha256/1c/ae/1caeae20ac5064373bcccbbe681f925dc5afed12a3c75fb44d4410a574b19a6b)

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