# STC SA2439SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Signature Flight Support Corporation, United States
- Description: Installation of 690B dorsal fin and tailcone assembly.
- Applied: March 8, 1977
- Status date: August 31, 2000
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 2A4](https://openairdocs.org/tcds/2A4)
- Certificate PDF: https://openairdocs.org/files/sha256/0c/f4/0cf451f41a9e50b88b4738df17e89046c028462bcc46a80a8f28adfd940a7e4e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3D8F277A736E121786257D95005CD74F.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2439SW

## ADs that name it (0)

None.

## Approved models (7)

- Twin Commander Aircraft LLC 680-T ([TCDS 2A4](https://openairdocs.org/tcds/2A4))
- Twin Commander Aircraft LLC 680-V ([TCDS 2A4](https://openairdocs.org/tcds/2A4))
- Twin Commander Aircraft LLC 680-W ([TCDS 2A4](https://openairdocs.org/tcds/2A4))
- Twin Commander Aircraft LLC 681 ([TCDS 2A4](https://openairdocs.org/tcds/2A4))
- Twin Commander Aircraft LLC 685 ([TCDS 2A4](https://openairdocs.org/tcds/2A4))
- Twin Commander Aircraft LLC 690 ([TCDS 2A4](https://openairdocs.org/tcds/2A4))
- Twin Commander Aircraft LLC 690A ([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.

JHmtetr giatie ©f .America 0f tlransportalton - ,3[eErrral JUttatton <Abtnmistrati0it

• Cirttfmtlg SA2439SW signature Flight Support Corporation, a Delaware Corporation 7511 Lemmon Avenue, Hangar C Dallas, TX 75209 Civil Ai r 2A4 Rockwe11 680T, 680V, 680W, 681, 685, 690, 690A Installation of 690B dorsal fin and tailcone assembly according to Drawing RI-500 dated 3/8/77, revised 3/7/79, or subsequent FAA approved revision.

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

iff e£ta&4b£xJ$ff £&<f 08, 1977 •"""' March 21, 1977 ; 12/21/98; 8/31/00 -March 22, 1982 Rev. 3 \Signature) inces Cpx Manager, Spatial Certification Office, Southwest Region (Title) alter ftl&n of la punishable fry a fine of not 51-000^ or j, or both, Form $110-2(10-68) Pag* 1 of Z nay be in *<-cor<Janc* with FAR 21*47.

The FAA nil! reiaaue tha certificate in the name of the transferee and forward it to him.

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 & street) (City, State, and ZIP code) Extent of Authority (if licensing agreement);

Signature of grantor (In ink)

## Every issue (1)

- August 31, 2000: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/0c/f4/0cf451f41a9e50b88b4738df17e89046c028462bcc46a80a8f28adfd940a7e4e)

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