# STC ST00270AT

- Type: Supplemental type certificate
- Status: Current, Surrendered
- Holder: E J Mlynarczyk & Co Inc, United States
- Description: Structural modifications to accommodate installation of Sony Trans Com, 16-inch video monitors in the overhead.
- Applied: April 21, 1993
- Status date: January 29, 2010
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A1NM](https://openairdocs.org/tcds/A1NM)
- Certificate PDF: https://openairdocs.org/files/sha256/71/c9/71c9267484edbc7bbf9d4738f474d84862c82a7e33f4c57fcc6b2e99640c6086
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E022087DB4776CE1862576FD005BC756.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST00270AT

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 767-300 Series ([TCDS A1NM](https://openairdocs.org/tcds/A1NM))

## What the certificate says

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

## Every issue (1)

- January 29, 2010: Surrendered, Current. [certificate](https://openairdocs.org/files/sha256/71/c9/71c9267484edbc7bbf9d4738f474d84862c82a7e33f4c57fcc6b2e99640c6086)

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