# STC ST508SO

- Type: Supplemental type certificate
- Status: Current, Surrendered
- Holder: Aeronautical Engineers Inc
- Description: Installation of lap/shoulder belts.
- Status date: June 12, 2009
- Data sheets: 4A22, 4A22
- Certificate PDF: https://openairdocs.org/files/sha256/a5/5f/a55fd9f5b804a8a0d21a880ae518dd9d7d1080ea4ecb288f18d272791e6f883b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1FB656DE88C5413B8625778900753D15.0001
- Page: https://openairdocs.org/stc/ST508SO

## ADs that name it

None.

## Approved models (2)

- Lockheed Aircraft Corporation 188A (TCDS 4A22)
- Lockheed Aircraft Corporation 188C (TCDS 4A22)

## What the certificate says

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

## Every issue (1)

- June 12, 2009: Surrendered, Current. [certificate](https://openairdocs.org/files/sha256/a5/5f/a55fd9f5b804a8a0d21a880ae518dd9d7d1080ea4ecb288f18d272791e6f883b)

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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.