# STC SH284NE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Agusta Aviation Corporation, United States
- Description: Installation of alternate static pressure source for the pilot's airspeed indicator, altimeter, and VSI.
- Status date: March 7, 1985
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H7EU](https://openairdocs.org/tcds/H7EU)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FDA7551EB9DC170C85256CC2005C3088.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH284NE

## 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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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.