# STC SR00988AT-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: East Coast Avionics, Inc, United States
- Description: Installation and operation of Enviro R134a cooling system.
- Status date: May 21, 1996
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS 1H13](https://openairdocs.org/tcds/1H13)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/54293F858A8DD03B85256CC200622692.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR00988AT-D

## ADs that name it (0)

None.

## Approved models (1)

- Sikorsky Aircraft Corporation S-62A ([TCDS 1H13](https://openairdocs.org/tcds/1H13))

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