# STC SA2-22

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Signature Flight Support Corporation, United States
- Description: Install 2 each 3/8 O.D. lines from LH nacelle to RH firewall.
- Status date: August 31, 2000
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A4](https://openairdocs.org/tcds/2A4), [TCDS 6A1](https://openairdocs.org/tcds/6A1)
- Certificate PDF: https://openairdocs.org/files/sha256/78/41/78418dd452dbda2e83bff93137ae4124ea7b267ed009e513a81eb5170dda4a09
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A167307F8D6F9B8E85256CC10083D457.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2-22

## ADs that name it (0)

None.

## Approved models (2)

- Twin Commander Aircraft Corporation 560-A ([TCDS 6A1](https://openairdocs.org/tcds/6A1))
- Twin Commander Aircraft Corporation 680 ([TCDS 2A4](https://openairdocs.org/tcds/2A4))

## 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.

•Hntteft ^tatcs ©f nf ^Transportation - Jlfeheral Afauttton AJtministrattoit Certificate SA2-22 signature Flight Support Corporation, a Delaware Corporation 7511 Lemmon Avenue, Hangar C Dallas, TX 75209 /AaS Me Me Civil Air 6A1, 2A4 Gulfstream American 560A, 680 Install 2 each 3/8 O.D. lines from LH nacelle to RH firewall which ties into IP349L hydraulic pump located on spare pad on RH engine. Pressure line from RH engine ties into AN825TEE fitting on AA 14510 unloader valve in LH nacelle.

Supply line for this system ties into AN825TEE fitting on bottom of reservoir in LH nacelle per Dallas Aero Service Drawing A-503001.

Dallas Aero Service, Log of Revisions, Rev. 2, Page 9A dated 9/18/56, is required.

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

.• September 18 , 1956 November 01, 1956 ; 12/21/98; 8/31/00 .-March 02, 1982 Rev. 7 VS-' (Signature) i Frances Cox Manager, Special Certification Office, Southwest Region (Title) Any Jjter'tlon of this certificate ii punishable by * fine of not exceeding $1,000, or laprlsonment not exceeding 3 yeprs. or both.

Fom eHO-!(10-69) Pags 1 of 2 This certificate may be transferred In accordance vlt-ft FAfl

INS fRUCTIONS; 1 he iransfpr endorsement below may be used lo nolify the appropriate l-'AA Regional Office of [he transfer of ihis Supplemental Type Certilicale.

The FAA will reissue tin- lertifkdLt in the name of the transferee and forward il !o him

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) { Number and street) I City, Stair, and ^IP lade I from (Name oj grantor) (Print or type) (Address of grantor) (Wumbe* anil sfrttt) (&<t, Stale, an Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

C FA* AC 63-5538

## Every issue (1)

- August 31, 2000: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/78/41/78418dd452dbda2e83bff93137ae4124ea7b267ed009e513a81eb5170dda4a09)

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