# STC SA1581NM

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Turbo West Inc, United States
- Description: Installation of a bleed air heat system.
- Applied: June 15, 1982
- Status date: May 17, 1984
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A8EA](https://openairdocs.org/tcds/A8EA)
- Certificate PDF: https://openairdocs.org/files/sha256/0b/b3/0bb3f506d0e3cebdb028cb2083ccfb433af5337739cdb21575dae193f68ac60b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/84EBACE0ECE5750685256CC1008213BF.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1581NM

## ADs that name it (0)

None.

## Approved models (2)

- Piper Aircraft Inc. PA-31T ([TCDS A8EA](https://openairdocs.org/tcds/A8EA))
- Piper Aircraft Inc. PA-31T1 ([TCDS A8EA](https://openairdocs.org/tcds/A8EA))

## What the certificate says

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

Profe No. T805 NMD-DS United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA1581NM This certificate issued to: Turbo West, Inc.

Jefferson County Airport Broomfield, Colorado 80020 Part 3 of the CIVIl Air Regulations.

Original Product - Type Berlificate Number: ASEA Make: Piper Aircraft Corporation Model: PA-31T and PA-31T1 Description of Type Design Change:

Installation of a bleed air heat system in accordance with FAA sealed Drawing Lists TW1049-01 or TW-1049-02 approved May 11, 1984 or later FAA approved revisions.

1. FAA approved Airplane Flight Manual Supplement (AFMS) for Model PA-31T, and

2. Instructions for continued Airwithin Fs, supplement is continuous inspection Manual P/N 761644, FAA approved May 15, 1984, or later FAA approved revision is required.

3. See (Continuation Sheet) page 3 of 3 pages.

Date of Application: June 15, 1982 Date Reissued:

Date of Issuance: May 15, 1984 I ale unended: May 17, 1984 FEDERAL AVIATION By Direction of the Administrator Nored Rearr Woodtord K. Boyce (Signalure) Manager CMINISTRAIO Denver Aircraft Certification Office Northwest Mountain Region, Aurora, Colorado 47 FAA FoRM 8110-2(10-68)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA1581 M Limitations and Conditions:

3. 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 interrelationship between this change and any other previously approved modifications will introduce no adverse effect upon the airworthiness of the aircraft.

- - - END -

## Every issue (1)

- May 17, 1984: Amended, Current. [certificate](https://openairdocs.org/files/sha256/0b/b3/0bb3f506d0e3cebdb028cb2083ccfb433af5337739cdb21575dae193f68ac60b)

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