# STC SH253NE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Agusta Aviation Corporation, United States
- Description: Installation of air conditioning improvement kit.
- Status date: April 19, 1984
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H7EU](https://openairdocs.org/tcds/H7EU)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/04B060653DDF915C85256CC2005C300B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH253NE

## ADs that name it (0)

None.

## Approved models (2)

- Agusta S.p.A. A109A ([TCDS H7EU](https://openairdocs.org/tcds/H7EU))
- Agusta S.p.A. A109AII ([TCDS H7EU](https://openairdocs.org/tcds/H7EU))

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