# STC SA5904NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Garmin AT Inc., United States
- Description: Installation of a II Morrow Apollo 2001 Navigation Management System, in accordance with the applicable data listed on the attached FAA AML SA5904NM, or later FAA approved revision.
- Applied: November 20, 1990
- Status date: December 5, 2003
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A31EU](https://openairdocs.org/tcds/A31EU), [TCDS 3A16](https://openairdocs.org/tcds/3A16), [TCDS A3WE](https://openairdocs.org/tcds/A3WE)
- Certificate PDF: https://openairdocs.org/files/sha256/88/d6/88d6772a2a06c537eb77eb11bb0c76a47a542628c462f8fd547566b4bd12d417
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/74D734A421C6086F86256DF9005A3518.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5904NM

## ADs that name it (0)

None.

## Approved models (10)

- Partenavia Costruzioni Aeronauticas S.p.A. P 68 ([TCDS A31EU](https://openairdocs.org/tcds/A31EU))
- Partenavia Costruzioni Aeronauticas S.p.A. P 68 Observer ([TCDS A31EU](https://openairdocs.org/tcds/A31EU))
- Partenavia Costruzioni Aeronauticas S.p.A. P 68B ([TCDS A31EU](https://openairdocs.org/tcds/A31EU))
- Partenavia Costruzioni Aeronauticas S.p.A. P 68C ([TCDS A31EU](https://openairdocs.org/tcds/A31EU))
- Partenavia Costruzioni Aeronauticas S.p.A. P 68C-TC ([TCDS A31EU](https://openairdocs.org/tcds/A31EU))
- Partenavia Costruzioni Aeronauticas S.p.A. P68 Observer 2 ([TCDS A31EU](https://openairdocs.org/tcds/A31EU))
- Partenavia Costruzioni Aeronauticas S.p.A. P68TC Observer ([TCDS A31EU](https://openairdocs.org/tcds/A31EU))
- Raytheon Aircraft Company 58 ([TCDS 3A16](https://openairdocs.org/tcds/3A16))
- Raytheon Aircraft Company 95-55 ([TCDS 3A16](https://openairdocs.org/tcds/3A16))
- The Boeing Company 727 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

Number SA5904NM

This certificate, issued to Garmin AT, Inc.

2345 Turner Road SE Salem, OR 97302

Part * of the * Regulations.

Original ProductType Certificate Number: *See attached FAA Approved Model List (AML) Make: No. SA5904NM for a list of approved airplane models Model: and applicable airworthiness requirements

Description of the Type Design Change: Installation of a II Morrow Apollo 2001 Navigation Management System, in accordance with the applicable data listed on the attached FAA AML SA5904NM, or later FAA approved revision.

Limitations and Conditions: Approval of this change in type design applies to the above aircraft models only. This approval should not be extended to other aircraft of this model series unless the installer determines that the relationship between this change and any other previously incorporated approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate must be maintained as part of the permanent records for the modified aircraft.

If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Date of application: November 20, 1990 Date reissued: December 5, 2003 Date of issuance: December 18, 1992 Date amended: August 20, 1993; December 5, 2003

(Signature)

Acting Manager, Seattle Aircraft Certification Office (Title)

## Every issue (1)

- December 5, 2003: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/88/d6/88d6772a2a06c537eb77eb11bb0c76a47a542628c462f8fd547566b4bd12d417)

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