# STC SA2953SO

- Type: Supplemental type certificate
- Status: Current, Surrendered
- Holder: Page AvJet Corp, United States
- Description: Modification of APU (Garrett TPE 700-4) control system to operate APU at reduced N1 speed during ground operation.
- Status date: July 9, 2008
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A22WE](https://openairdocs.org/tcds/A22WE)
- Certificate PDF: https://openairdocs.org/files/sha256/f9/9f/f99f508366454a7392b90ba3c6a738bd5460c26a3ccd28ede25780777b726988
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BCBEB47C895CBF71862574CE006277E2.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2953SO

## ADs that name it (0)

None.

## Approved models (1)

- McDonnell Douglas Corporation DC-10-30 ([TCDS A22WE](https://openairdocs.org/tcds/A22WE))

## What the certificate says

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

## Every issue (1)

- July 9, 2008: Surrendered, Current. [certificate](https://openairdocs.org/files/sha256/f9/9f/f99f508366454a7392b90ba3c6a738bd5460c26a3ccd28ede25780777b726988)

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