# STC SA2-128

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Signature Flight Support Corporation, United States
- Description: Increase incidence of horizontal stabilizer.
- Applied: February 12, 1957
- Status date: August 31, 2000
- 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/sha256/28/46/28462017ea66c9bcee6cb255241daca48e58e7f3fca9122781b609601eedfee5
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5DA22EFE33ECF14785256CC10083D438.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2-128

## 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.

,39 cpar Intent of transportation - ^ffeheral Afaiatum Ahmmietrottmt : Certificate SA2-128 Signature Flight Support Corporation, a Delaware Corporation 7511 Leinmon Avenue, Hangar C Dallas, TX 75209 SR407 A—723 Lockheed 18 Civil Air Increase incidence of horizontal stabilizer in accordance with DAS Drawing List titled "Increase Incidence Horizontal Stabilization" Revision 7 dated 1/3/61.

1. Aircraft operated under SR407.

2. Item No. 104 (a) of Aircraft Spec A-723 removed.

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

* Aaaw February 12, 1957 25, 1957 ; 12/21/98; 8/31/00 20, 19S2 Rev. 8 (Signature) S. Frances Cox Manager, Special Certification Office, Southwest Region (TV/te)

FAA FOIB 8110-2110-68) Page 1 of 2 T/iJj e*rUf!cflte Hjy be transferred In accotdance with FM 21.47.

] NST RUCTIONS The transfer endorsemem below may be used !o notify the appropriate FAA Regional Office of the transfer of (his Supplemental Type Certificate.

The FAA will reissue the certificate in the name of the transferee anti forward n 10 him.

TRANSFER ENDORSEMENT Transfer die ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) ( Wumbtt aid ftreet) from (Name ofgianlor) (Print or type).

(Address of grantor) f Number and st'erl) (City, Stale, and ZIP codr ) Extent of Authority (if licensing agreement):.

Signature of grantor (In ink):

**C FAA AC 69-5536**

## Every issue (1)

- August 31, 2000: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/28/46/28462017ea66c9bcee6cb255241daca48e58e7f3fca9122781b609601eedfee5)

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