# STC SA491AL

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Univair Aircraft Corporation
- Description: Replacement of hammock type seat back rest with removable horizontal tube.
- Status date: February 10, 2017
- Data sheets: A-780
- Certificate PDF: https://openairdocs.org/files/sha256/1f/68/1f684925acaa6ad6b48a1cd57ff714e46d2aba6e7a7d36d42f19a3eb2d5ede36
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185764478820231207154701.0001
- Page: https://openairdocs.org/stc/SA491AL

## ADs that name it

None.

## Approved models (1)

- The New Piper Aircraft Inc. PA-12 Series (TCDS A-780)

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- February 10, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/1f/68/1f684925acaa6ad6b48a1cd57ff714e46d2aba6e7a7d36d42f19a3eb2d5ede36)

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From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.