# STC SA3-42

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sabreliner Aviation LLC, United States
- Description: Modification to Janitrol heater air inlet scoop. Installation of Janitrol heater overheat warning system.
- Applied: May 22, 1957
- Status date: March 7, 2014
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-723](https://openairdocs.org/tcds/A-723)
- Certificate PDF: https://openairdocs.org/files/sha256/05/5a/055ad42307d7708c07406585e628107d4cb41421d1427806966a1eb01c7fa67e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DA095E98DE708A3886257D6D0067DECA.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3-42

## ADs that name it (0)

None.

## Approved models (1)

- Lockheed Martin Aeronautics Company 18 ([TCDS A-723](https://openairdocs.org/tcds/A-723))

## 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 SA3-42 Sabreliner Aviation, LLC.

1390 Highway H Perryville, MO 63775 4a 1 Civil Air Regulations A-723 18 Item I: Modification to Janitrol Heater Air Inlet Scoop.

Item II: Installation of Janitrol Heater Overheat Warning System.

Data Required: Remmert-Werner Drawing No's. LL-11101 Rev. A, LL-11000 Rev. A, and L-11001 (STC SA3-41), or later FAA approved revision.

Item I Modification is required for installation of Pratt & Whitney R1830-92 engines. This installation also includes STC SA3-41, compatibility of this modification with other previously approved modifications must be determined by the installer

Lockheed October 1, 1970; March 25, 1981; March 7, 2014 May 22, 1957 May 28, 1957 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)

## Every issue (1)

- March 7, 2014: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/05/5a/055ad42307d7708c07406585e628107d4cb41421d1427806966a1eb01c7fa67e)

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