SA02017WIOther aircraft modifications
The Installation of the Parker-Meggitt iPRESS™ System.
FAA holder: 3S Certification LLC
Aircraft STC directory
Textron Aviation 525C STCs
The Jun 30, 2026 FAA DRS snapshot contains 21 selected supplemental type certificates with status Current whose public applicability data names the Textron Aviation 525C. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
21
listed Current at snapshot
15
holder directories
5
modification categories
Feb 3, 2026
latest recorded revision
Modification demand surface
Other aircraft modifications10
Avionics6
Landing gear and brakes2
Electrical systems2
Aircraft connectivity1
Recorded holders
BHE & Associates LTD2Rockwell Collins Inc2CESSNA Duesseldorf Citation Service2Aviation Communication and Surveillance Systems (ACSS) LLC23S Certification LLC1Apcela IFC JV, LLC dba Apcela ATG1Liberty Partners Inc1Sterling Helicopter1Aircraft Systems and Manufacturing Inc1Elliott Aviation Technical Products Development, Inc.1Avmax Aviation Services Inc1Textron Aviation Inc1ELDEC Corporation1Duncan Aviation Inc1Teledyne Battery Products1
Recently revised 525C STCs
Showing the 21 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA12014LALanding gear and brakes
Installation of aluminum and fiberglass wheel covers.
FAA holder: Premiere-Aviation Inc.
SA04619CHOther aircraft modifications
INSTALL SMARTSKY LITE SYSTEM.
FAA holder: Apcela IFC JV, LLC dba Apcela ATG
SA11158SCOther aircraft modifications
Demonstration of aircraft tolerance to potential electromagnetic interference from certain Transmitting Potable Electronic Devices (T-PEDS).
FAA holder: Liberty Partners Inc.
SA11300DSAvionics
Upgrade previously installed Collins Aerospace Radar Altimeter.
FAA holder: BHE & Associates Ltd.
SA12030NYOther aircraft modifications
Installation of the position/anti-collision LED lights and LED beacon light.
FAA holder: Sterling Helicopter
SA09887ACOther aircraft modifications
Installation of an Avionica MK-III mini Quick Access Recorder (QAR) and optional 4G or LTE Avionica\nCellular Module (avCM.
FAA holder: Aircraft Systems and Manufacturing Inc.
SA01848WIAvionics
Modification of a Rockwell Collins Global Positioning System (GPS).
FAA holder: Rockwell Collins Inc.
SA03316CHAircraft connectivity
Activation of an 802.11 a/b/g/n WiFi System.
FAA holder: Elliott Aviation Technical Products Development Inc.
SA00120IBElectrical systems
Installation of the Universal Kapture Cockpit Voice Recorder (CVR) with Recorder Independent Power Supply (RIPS).
FAA holder: Avmax Aviation Services Inc.
SA11299DSOther aircraft modifications
An update to the exisiting Collins Aerospace Integrated Flight Information System (IFIS) FSU-5010 and upgrade the existing XMWR-1000 to a XMWR-1000S (Sirius XM) in Part 23 aircraf.
FAA holder: BHE & Associates LTD
SA01990WIOther aircraft modifications
Installation of Gogo Biz AVANCE L5 4G ATG System.
FAA holder: Textron Aviation Inc
SA02272SELanding gear and brakes
Installation of a Crane Aerospace & Electronics Tire Sensor Assembly.
FAA holder: ELDEC Corporation
SA04525NYAvionics
Installation of dual GPS/NAV/COMM Garmin GNS430/530(A)W.
FAA holder: Avionik Straubing GmbH
SA04520NYAvionics
ADS-B Out GNSS source modification for transponder #2.
FAA holder: CESSNA Duesseldorf Citation Service
SA02677LAAvionics
Modification to upgrade the existing Mode S Transponder system by installing the ACSS NXT-700 Transponder with ADS-B Out and optionally install the ACSS NXG-900 GPS as the position source for ADS-B Out.
FAA holder: Aviation Communication and Surveillance Systems (ACSS) LLC
SA02678LAAvionics
Modification to upgrade the existing Mode S Transponder system by installing the ACSS NXT-600 Transponder with ADS-B Out and optionally install the ACSS NXG-900 GPS as the position source for ADS-B Out.
FAA holder: Aviation Communication and Surveillance Systems (ACSS) LLC
SA01872WIOther aircraft modifications
Installation of Honeywell UHF Provisions and Rockwell Collins TCN-500 TACAN System.
FAA holder: Duncan Aviation Inc
SA01684WIOther aircraft modifications
Installation of Rockwell Collins, Inc. Aircraft Information Management (AIM) System.
FAA holder: Rockwell Collins Inc
SA03934NYOther aircraft modifications
Installation of Garmin GTN 725.
FAA holder: CESSNA Duesseldorf Citation Service
SA00797DEElectrical systems
Installation of Teledyne Battery Products P/N 7638-44T Lead-Acid Battery.
FAA holder: Teledyne Battery Products