# STC ST09887SC

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Aircraft Systems & Mfg, United States
- Description: Installation of a dual IS&S air data system consisting of electric altimeters and air data computers.
- Applied: February 6, 2001
- Status date: June 19, 2001
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE)
- Certificate PDF: https://openairdocs.org/files/sha256/ad/09/ad09d7766de7de9d51bc19a0f6ef728be98ee00190532c0cbc159fcfeb32a4e9
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/313D0E1834C5DF3B85256CC300035EDE.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST09887SC

## ADs that name it (0)

None.

## Approved models (2)

- The Boeing Company 727-100 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))
- The Boeing Company 727-200 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- June 19, 2001: Issued, Current. [certificate](https://openairdocs.org/files/sha256/ad/09/ad09d7766de7de9d51bc19a0f6ef728be98ee00190532c0cbc159fcfeb32a4e9)

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