# STC SA3-590

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sabreliner Aviation LLC, United States
- Description: Installation Stewart-Warner 940-F24 cabin heater - STA 620.
- Applied: November 12, 1960
- Status date: March 7, 2014
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-793](https://openairdocs.org/tcds/A-793)
- Certificate PDF: https://openairdocs.org/files/sha256/58/6b/586b6e7ff16cc956c0f7c528c02b795e138cd53513e68db087b830f7a5668c2d
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B9CF63E0AF1D5D2486257DD30071870A.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3-590

## ADs that name it (0)

None.

## Approved models (1)

- Kelowna Flightcraft R & D Ltd. 240 Series ([TCDS A-793](https://openairdocs.org/tcds/A-793))

## 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 (5/14) Page 1 of

Part of the

Signature

Title SA3-590 Sabreliner Aviation, LLC 1390 Highway H Perryville, MO 63775 4b Civil Air Regulations 2 A-793 240 Installation Stewart-Warner 940-F24 Cabin Heater Sta. 620. Data required: Remmert-Werner Drawings SK-10417, SK-10390, SK-10391 and SKE-010091, or later FAA approved revision.

This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft.

Convair November 12, 1960 October 1, 1970; March 25, 1981; June 30, 1983;

March 7, 2014 December 22, 1960 Grant E. Youngdahl Program Manager Wichita Aircraft Certification Office

FAA Form 8110-2 (5/14) Page 2 of

To (Name and address of transferee)

From (Name and address of grantor)

SA3-590 2

## Every issue (1)

- March 7, 2014: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/58/6b/586b6e7ff16cc956c0f7c528c02b795e138cd53513e68db087b830f7a5668c2d)

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