SA02017WIOther aircraft modifications
The Installation of the Parker-Meggitt iPRESS™ System.
FAA holder: 3S Certification LLC
Aircraft STC directory
Textron Aviation 551 STCs
The Jun 30, 2026 FAA DRS snapshot contains 31 selected supplemental type certificates with status Current whose public applicability data names the Textron Aviation 551. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
31
listed Current at snapshot
15
holder directories
8
modification categories
Feb 3, 2026
latest recorded revision
Modification demand surface
Other aircraft modifications10
Avionics7
Cabin and interiors4
Electrical systems3
Landing gear and brakes3
Aircraft connectivity2
Cargo and special mission1
Aircraft structures1
Recorded holders
Sierra Industries Ltd.9Blackhawk Aerospace Technologies Inc.6JETTECH LLC2Kaman Corporation Aircraft Wheel and Brake LLC23S Certification LLC1Liberty Partners Inc1Aircraft Systems and Manufacturing Inc1Summit Aviation Inc.1Aero-Mach Wilco LLC1ELDEC Corporation1Carlisle Interconnect Technologies Inc.1Skyway Group Inc1Purolator Facet, Inc1Sierra Industries Inc1Teledyne Battery Products1
Recently revised 551 STCs
Showing the 31 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA11158SCOther aircraft modifications
Demonstration of aircraft tolerance to potential electromagnetic interference from certain Transmitting Potable Electronic Devices (T-PEDS).
FAA holder: Liberty Partners Inc.
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.
ST02432LAAircraft connectivity
Installation of Dual Garmin GTN 6XX/7XX Series Global Navigation System with Structural Antenna and WAAS approval; Garmin GMA 35 Audio Panel; Dual Garmin GTX 33 Mode S Transponders; Garmin GWX 70 Weather Radar; and Garmin GDL-88 ADS-B Transceiver on airplane models with a SPZ-500AFCS.
FAA holder: JETTECH LLC
SA2005SOElectrical systems
Installation of a third stand-by attitude gyro and dedicated power supply AIM P/N PE 24-1RM.
FAA holder: Summit Aviation Inc
ST00011WIElectrical systems
Installation of Concorde RG380E/40 and 40B battery.
FAA holder: Aero-Mach Wilco LLC
SA1298GLOther aircraft modifications
Installation of Cleveland main wheels and brakes.
FAA holder: Kaman Corporation Aircraft Wheel and Brake LLC
SA883GLLanding gear and brakes
Install aircraft wheel and brake conversion kit 199-137.
FAA holder: Kaman Corporation Aircraft Wheel and Brake LLC
SA02273SELanding gear and brakes
Installation of a Crane Aerospace & Electronics Tire Sensor Assembly.
FAA holder: ELDEC Corporation
SA8458SWOther aircraft modifications
Installation of quick release nose radome latch mechanisms.
FAA holder: Sierra Industries Ltd.
SA01156WIOther aircraft modifications
Installation of IS&S Air Data System with Reduced Vertical Separation Minimum (RVSM) compliant Dual Air Data System.
FAA holder: Blackhawk Aerospace Technologies Inc.
SA01196WIAvionics
Installation of Universal Avionics EFI-550 2-Display EFIS System. Data required: (1) Columbia Avionics, Inc. Master Document List No. 30141145, Revision 3, dated September 24, 2003; and (2) FAA Approved Flight Manual Supplement 30141160, dated September 30, 2003, or later FAA Approved Revisions to (1) or (2).
FAA holder: Blackhawk Aerospace Technologies Inc.
SA01469WIAvionics
Installation of Universal Avionics EFI-890R Flat Panel EFIS System.
FAA holder: Blackhawk Aerospace Technologies Inc.
SA01697WIAvionics
Installation of Garmin GTN Series GPS/Comm/Nav Systems with optional Garmin GDL-69/A XM Weather Data Link, GTX-33 Series Transponders and optional Bendix/King KMR-675 Marker Beacon Receiver.
FAA holder: Blackhawk Aerospace Technologies Inc.
ST00662WIAvionics
Installation of Bendix/King EFS-50 Two-Tube (EFIS) Electronic Flight Instrumentation System.
FAA holder: Blackhawk Aerospace Technologies Inc.
ST01162WIOther aircraft modifications
Reduced Vertical Separation Minimum (RVSM) group airworthiness approval of the Cessna Aircraft Model 500, 501, 550 and 551.
FAA holder: Blackhawk Aerospace Technologies Inc.
ST02642ATOther aircraft modifications
Installation of a RVSM Air Data System.
FAA holder: Carlisle Interconnect Technologies Inc.
ST01898WIAvionics
Installation of the RVSM capable Garmin G600 with GDU-1060 Touch Screen Primary Flight Display (PFD).
FAA holder: JETTECH LLC
ST00366WIOther aircraft modifications
Installation of Keddeg Company P/N 21BC115 Coalescer Assembly.
FAA holder: Purolator Facet, Inc
SA215RMCabin and interiors
Installation of extended width cabin door.
FAA holder: Sierra Industries Inc
SA3885NMCargo and special mission
Installation of medical air transport unit.
FAA holder: Sierra Industries Ltd.
SA4099NMCabin and interiors
Installation of a replacement cabin door hinge assembly.
FAA holder: Sierra Industries Ltd.
ST09630ACAvionics
Installation of Meggitt Avionics Engine Instrument Display System.
FAA holder: Sierra Industries Ltd.
ST09718ACAircraft connectivity
Installation of Artex C406 (406 MHz) Series emergency locator transmitter, antenna, and remote switch assembly.
FAA holder: Sierra Industries Ltd.
SA09010SCLanding gear and brakes
Installation of a pilot's control wheel mounted, alternate gear horn silence switch.
FAA holder: Sierra Industries Ltd.
SA09229SCAircraft structures
Removal of mechanical factory nose baggage door stop assemblies and installation of pneumatic gas cylinder baggage door openers.
FAA holder: Sierra Industries Ltd.
SA09862ACCabin and interiors
Removal of original equipment manufacturer ladder and installation of a new design cabin entrance step assembly.
FAA holder: Sierra Industries Ltd.
SA8828SWOther aircraft modifications
Installation of inertial reel assembly on pilot and co-pilot shoulder harnesses.
FAA holder: Sierra Industries Ltd.
ST00796DEElectrical systems
Installation of Teledyne Battery Products P/N 7638-44T Lead-Acid Battery.
FAA holder: Teledyne Battery Products