# STC SA09078AC-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Aviation Systems Standards, Aircraft Maintenance and Engineering Division AVN-300, United States
- Description: Installation of Cubic Communications DF-4400 Radio Frequency Interference (RFI) Direction-Finding (DF) System.
- Applied: July 5, 2002
- Status date: March 31, 2009
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A24CE](https://openairdocs.org/tcds/A24CE)
- Certificate PDF: https://openairdocs.org/files/sha256/9b/8f/9b8fef6d919f67e6e50a1b4382fa57c769f8cf8168d50cc2b067d97c0f8de03a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B69769D70C955DBE8625767E0055881F.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA09078AC-D

## ADs that name it (0)

None.

## Approved models (1)

- Hawker Beechcraft Corporation 300 ([TCDS A24CE](https://openairdocs.org/tcds/A24CE))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA09078AC-D This certificate issued to: Aviation System Standards Aircraft Maintenance and Engineering Division, AVN-300 6500 S. MacArthur Boulevard Oklahoma City, OK 73169 Part 23 of the Federal Aviation Regulations.

Original Product - Type Certificate Number: A24CE Make: Hawker Beechcraft Corp.

Model: 300 Super King Air Description of Type Design Change:

Installation of Cubic Communications DF-4400 Radio Frequency Interference (RFI) Direction-Finding (DF) System. This alteration is to be made in accordance with data list D09078, dated March 31, 2009, or later approved FAA (DAS) revision. Amendment 1 provides an option to permit a configuration for removal of four VHF-band direction-finding (DF) antennas.

FAA approved airplane flight manual supplement, "Radio Frequency Interference Direction-Finding System," dated March 31, 2009, or later approved FAA (DAS) revision, is required. Compatibility of the alteration with other approved alterations is to be determined by the installer.

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: July 5, 2002 Date Reissued:

Date of Issuance: _ October 8, 2002 Date Amended: March 31,2009 FEDERAL AVIATION By Direction of the Administrator PAIN STRATO Jay a Skyr DAS Administrator (Title)

## Every issue (1)

- March 31, 2009: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/9b/8f/9b8fef6d919f67e6e50a1b4382fa57c769f8cf8168d50cc2b067d97c0f8de03a)

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