# STC ST527CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: ERDA, Inc, United States
- Description: Install GTE generation 1B Digital Airfone in PTC-940 seatback previously installed with GTE Analog Airfones.
- Applied: March 15, 1998
- Status date: July 25, 1996
- Product: Aircraft, Large Airplane
- Certification basis: Part 25
- Data sheets: [TCDS A6WE](https://openairdocs.org/tcds/A6WE)
- Certificate PDF: https://openairdocs.org/files/sha256/84/98/8498c61283d262c776c7e83c4ed7d825e72c359158841f02535a93f7e754722a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID132881513220260910165917.0001
- DRS record last changed: September 10, 2026
- Page: https://openairdocs.org/stc/ST527CH

## ADs that name it (0)

None.

## Approved models (1)

- McDonnell Douglas Corporation MD-88 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))

## What the certificate says

The certificate has no text we could read; open the PDF to read it.

## Every issue (1)

- July 25, 1996: Issued, Current. [certificate](https://openairdocs.org/files/sha256/84/98/8498c61283d262c776c7e83c4ed7d825e72c359158841f02535a93f7e754722a)

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