# STC ST400CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: ERDA, Inc
- Description: Installation of ERDA seatfone kit, assembly number 210019, onto PTC Model 940 series on aircraft seatbacks.
- Status date: August 28, 1995
- Data sheets: A6WE
- Certificate PDF: https://openairdocs.org/files/sha256/07/38/0738e1a6b0b2d5152a61cbaf27e44505d7c204b0dcc8a9a71a1d4d6c44365bfb
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID160406696620260910165028.0001
- Page: https://openairdocs.org/stc/ST400CH

## ADs that name it

None.

## Approved models (1)

- McDonnell Douglas Corporation DC-9-82 (MD-82) (TCDS A6WE)

## What the certificate says

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

## Every issue (1)

- August 28, 1995: Issued, Current. [certificate](https://openairdocs.org/files/sha256/07/38/0738e1a6b0b2d5152a61cbaf27e44505d7c204b0dcc8a9a71a1d4d6c44365bfb)

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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.