# STC SA2-6

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Signature Flight Support Corporation, United States
- Description: Installation of airspeed system when radar nose is installed.
- 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/sha256/8f/f3/8ff3f1dfe0b5576df7e76b2a243ed91c8f84ae70fc47a22cdf98dfa18c1494fd
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/427212D86CC3EB1785256CC10083D4B6.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2-6

## 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

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.

platen i$f .America ppartmmt of transportation - Jfefteral ^nation ^mmteiraiton (Certificate SA2-6 signature Flight Support Corporation, a Delaware Corporation 7511 Lemraon Avenue, Hangar C Dallas, TX 75209 A-723 Lockheed L-18 Civil Air Installation of airspeed system when radar nose is installed according to Drawing List dated 8/14/56, and HAL Airplane Flight Manual Revision to pages 8/14/56.

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

osid ' £4t> i-&J*J fa* f- MMM fefftam 6ft> .-August 14 , 1956 August 14, 1956 .- 6/1/92; 12/21/98; 8/31/00 .- 1/27/81; 7/20/.82 Rev. 2 yiignafure) 'S. Frances Cox Manager, Special Certification Office, Southwest Region (rate) Any alteration of ChJ* certificate Ja pvtolshablf by o tinf of not exceeding $1,000, or ioprtsoooent not VKCeffllnq 3 years, or both.

FAA Form 8110-2(10-68) paga 1 of 2 cfrtlflcatm my &e transffrr&l in fCCOfdonce wlch FAW 2J.fl7r

INSTRUCTIONS; ]'hi- transfer endorsemcni below may tie used lo notify the appropriate FAA Regional Office of I he transfer of this Supjilcnu-ntal T\ pc Ccnificale, The FAA will reissue ihr rerlifitate in [he name of the transferee and forward il til him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name oj transferee) (Address of transferee)

t.WumbtT and itrfft) (Ctty, Stair, and ?JP todi) from (Name of grantor) (Print or tyfit) (Address of grantor) fNumkf and s (City, Slalr, unit ^IP cadr) Extent of Authority (if licensing agreement):

Signaiure of grantor (In ink):

**C FAA AC 63-5538**

## Every issue (1)

- August 31, 2000: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/8f/f3/8ff3f1dfe0b5576df7e76b2a243ed91c8f84ae70fc47a22cdf98dfa18c1494fd)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.