# STC SA2-814

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Signature Flight Support Corporation, United States
- Description: Installation of carburetor heat system.
- Applied: June 12, 1959
- Status date: August 31, 2000
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-723](https://openairdocs.org/tcds/A-723)
- Certificate PDF: https://openairdocs.org/files/sha256/57/dd/57dd6c9cadfca84dc409c5ac33b3ca4197e6f8cbf6070bd2104e9ea2fef06631
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0A337A4DC9D2B24085256CC10083D4E5.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2-814

## ADs that name it (0)

None.

## Approved models (1)

- Lockheed Aircraft Corporation Lockheed 18 ([TCDS A-723](https://openairdocs.org/tcds/A-723))

## 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 5A2-814 This certificate issued to: Signature Flight Support Corporation, a Delaware Corporation 7511 Lemmon Avenue, Hangar C Dallas, TX 75209 Certifies that the change in the type design for the following product with the limitations and condition's therofor as specified hereon meets the airoorthiness requirement's of Part 4a of the Civil Air Regulations.

Original Product Type Certificate Number: 723 Make: Lockheed Model: 18 Description of Type Design Change:

Installation of carburetor heat system in accordance with drawing listed on DAS Drawing List titled "Carburetor Heat System" Revision 2 dated 2/6/62, or later FAA approved revision.

An approved carburetor alcohol system is required as supplementary de-icing equipment.

Compatibility of this modification with other previously approved modifications must be determined by the installer.

Date of Application: June 12, 1959 Date Reissued: 7/10/92; 12/21/98; 8/31/00 Date of Issuance: September 30, 1959 Date Amended: May 28, 1982 ReV. 8 FEDERAL LAVATOR By Direction of the Administrator fun s. Frances cox (Signature) TOMINSTRATOS Manager, Special Certification Office, Southwest Region (Title)

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and ZIP code ) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and ZIP code) Extent of Authority (if licensing agreement): - Date of Transfer:.

Signature of grantor (In ink):

**FAA AC 69-5536**

## Every issue (1)

- August 31, 2000: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/57/dd/57dd6c9cadfca84dc409c5ac33b3ca4197e6f8cbf6070bd2104e9ea2fef06631)

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