# STC SA60RM

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Frontier Airlines Inc, United States
- Description: Installation of Sundstrand ground proximity warning system, glide slope monitoring system and Honeywell low range radio altimeter system. STC SA4-1100.
- Applied: March 17, 1975
- Status date: May 13, 1977
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 6A6](https://openairdocs.org/tcds/6A6)
- Certificate PDF: https://openairdocs.org/files/sha256/5d/85/5d859af728eb69b11b64cfa074f1b9c9f6b293727dab43b5a47da2d6c528ecc9
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D85159859A86684985256CC200569E9E.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA60RM

## ADs that name it (0)

None.

## Approved models (2)

- Tracor Flight Systems Inc. 340 ([TCDS 6A6](https://openairdocs.org/tcds/6A6))
- Tracor Flight Systems Inc. 440 Military C-131E ([TCDS 6A6](https://openairdocs.org/tcds/6A6))

## What the certificate says

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

## Every issue (1)

- May 13, 1977: Amended, Current. [certificate](https://openairdocs.org/files/sha256/5d/85/5d859af728eb69b11b64cfa074f1b9c9f6b293727dab43b5a47da2d6c528ecc9)

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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.