# STC SA9086AC-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: FAA Aviation System Standards AVN-300, United States
- Description: Removal of the collins 718U-5 HF system. This system consists of 671U-4A receiver exciter, 548S-3 power amplifier coupler, 309L-2 Selscan, 514A-12 radio set control, VP-110 voice privacy unit, 373Q-2 secure voice remote control, and HF long-wire antenna.
- Applied: July 27, 1999
- Status date: September 8, 1999
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A24CE](https://openairdocs.org/tcds/A24CE)
- Certificate PDF: https://openairdocs.org/files/sha256/90/6c/906c0562aec011d257fd9af1eab50303a595bf0b97917c3277876f5da0321261
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/27EFD886CC7775EB85256CC20058EA28.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA9086AC-D

## ADs that name it (0)

None.

## Approved models (1)

- Raytheon Aircraft Company 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: SA9086AC-D This certificate issued to: Aviation System Standards Flight Inspection Maintenance Division, AVN-300 6500 S. MacArthur Boulevard Oklahoma City, OK 73169 Purt 23 of the Federal Aviation Regulations:

Original Product -Type bertificate Number: A24CE Make: Raytheon Aircraft Company (Beech) Model: 300 Super King Air Description of Type Design Change: Removal of the Collins 718U-5 HF System. system consist of 671U-4A receiver exciter, 548S-3 power amplifier coupler, 309L-2 Selscan, 514A-12 radio set control, VP-110 voice privacy unit, 373Q-2 secure voice remote control, and HF long-wire antenna. This alteration is to be made in accordance with Data List BE-300-19, dated August 15, 1999, or later approved FAA (DAS) revisions.

Limilalins and bundilions: FAA Approved Airplane Flight Manual Supplement, Removal of the HF System," dated September 7, 1999, is required. Compatibility of this alteration with other approved alterations is to be determined by the remover.

Date of Application: JUIY 27, 1999 Jute wissued:

Date of Issuance: September 8, 1999 Date Amended:

FEDERAL AVIATION By Direction of the Administrator Brent Bogn

TOMIN STRATO ON DAS Coordinator (Title)

47.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA9086AC-D Lintdinan Cali Calival 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.

**FAA FORM 8110-2-1 (10-69)**

PAGE OF PAGES C FAA AC 82:03578

## Every issue (1)

- September 8, 1999: Issued, Current. [certificate](https://openairdocs.org/files/sha256/90/6c/906c0562aec011d257fd9af1eab50303a595bf0b97917c3277876f5da0321261)

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