# STC SA981NW

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Machen Inc, United States
- Description: Installation of 35 ampere hour batteries.
- Applied: September 21, 1979
- Status date: November 1, 1998
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A17WE](https://openairdocs.org/tcds/A17WE)
- Certificate PDF: https://openairdocs.org/files/sha256/a8/c7/a8c77ab2d3d34a0eaa772e1dfc4d9cecb01ff865151b9306fef5602e1bd574e6
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2A9FA6A81650F1C185256CC2005A727D.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA981NW

## ADs that name it (0)

None.

## Approved models (4)

- Aerostar Aircraft Corporation PA-60-600 (Aerostar 600) ([TCDS A17WE](https://openairdocs.org/tcds/A17WE))
- Aerostar Aircraft Corporation PA-60-601 (Aerostar 601) ([TCDS A17WE](https://openairdocs.org/tcds/A17WE))
- Aerostar Aircraft Corporation PA-60-601P (Aerostar 601P) ([TCDS A17WE](https://openairdocs.org/tcds/A17WE))
- Aerostar Aircraft Corporation PA-60-602P (Aerostar 602P) ([TCDS A17WE](https://openairdocs.org/tcds/A17WE))

## 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: SA981NW This certificate issued to: Machen, Inc.

10555 Airport Drive Coeur d'Alene Airport Hayden Lake, ID 83835 Certifies that the change in the type design for the following product with the limitations and conditions therefor as specified hereon meets the airworthiness requirement's of Part 23 of the Federal Aviation Regulations, effective December 1, 1978.

Original Product -Type Certificate Number: A17WE Make: Aerostar Model: PA-60-600, -601, -601P, -602P Description of Type Design Change: Installation of 35 ampere hour batteries in accordance with Machen, Inc., Report No. 66-5.

Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only.

This approval should not be extended to other aircraft of these models 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 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.

Date of Application: September 21, 1979 Date Reissued:

Date of Issuance: July 16, 1980 Date Amended: April 10, 1981; November, 1. 1998 FEDERAL AVIATION By firection She Sidministrator, боти (Signature) OMINIST RATIO Acting Manager, Seattle Aircraft Certification Office (Title)

## Every issue (1)

- November 1, 1998: Amended, Current. [certificate](https://openairdocs.org/files/sha256/a8/c7/a8c77ab2d3d34a0eaa772e1dfc4d9cecb01ff865151b9306fef5602e1bd574e6)

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