# STC SA2795SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sierra Industries, Inc, United States
- Description: Installation of removable airstair.
- Applied: January 11, 1978
- Status date: December 1, 1999
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 4A28](https://openairdocs.org/tcds/4A28)
- Certificate PDF: https://openairdocs.org/files/sha256/8d/e7/8de7e1bbaf51147238b2610872e38852e97ad9e3cc2741642e10d7f7538909b4
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/825C5659BCB97C9685256CC20008C940.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2795SW

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 720 Series ([TCDS 4A28](https://openairdocs.org/tcds/4A28))

## 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.

•ISmtrii gtatt* <©f America of tftraitsportalinn - ^efcmrl ,Abiaium ,Ahmmtatratt0n upplemetttal Certificate SA2795SW Sierra Industries, Inc., a Texas Corporation Garner Field Road Uvalde, TX 78801 4b f^£l£s Civil Air 4A28 Boeing 720 Installation of removable airstair according to Report No. 0720-10, Revision A, dated 6/5/78, or later FAA approved revision.

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

.- January 11, 1978 June 09, 1978 December 1, 1999 (Signmure) I Michele M. Owsley, Manager 1 Airplane Certification Office, Southwest Region Any aJterfltion of tttls certificate is punishable by a /Ins of not vxceerflng $1,000, or lopflsoneaent not ence*dlng 3 yflflfj, or both FA^ Eorn 9110-2(10-66) Page 1 of I This be transferred In accordance wit/j FAfl 21.47.

The FAA will reiaaue the 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) £ street} (City, State, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink)

## Every issue (1)

- December 1, 1999: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/8d/e7/8de7e1bbaf51147238b2610872e38852e97ad9e3cc2741642e10d7f7538909b4)

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