# STC ST564SO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Aeronautical Engineers, Inc
- Description: Installation of HF antenna and associated hardware and structural provisions for mounting HF tuning unit.
- Status date: November 19, 1973
- Data sheets: 4A28, 4A28
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CC7435AB8E970CF185256CC300036089.0001
- Page: https://openairdocs.org/stc/ST564SO

## ADs that name it

None.

## Approved models (2)

- The Boeing Company 720 (TCDS 4A28)
- The Boeing Company 720B (TCDS 4A28)

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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.