Aircraft STC directory

New Piper Aircraft PA-23-250 (Navy UO-1) STCs

The Jun 30, 2026 FAA DRS snapshot contains 16 selected supplemental type certificates with status Current whose public applicability data names the New Piper Aircraft PA-23-250 (Navy UO-1). Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

16

listed Current at snapshot

11

holder directories

6

modification categories

Aug 31, 2023

latest recorded revision

Modification demand surface

Other aircraft modifications9 Avionics3 Engine and powerplant1 Cargo and special mission1 Aircraft structures1 Electrical systems1

Recorded holders

TALCO Aviation2 Garmin AT Inc.2 GE Engine Services-Corporate Aviation Inc. DBA Garrett Aviation Services2 FTG, Inc.1 DAC International Inc1 Honeywell International Inc1 S-TEC Corporation1 Chelton Aviation Corporation1 Bogert Aviation1 Avidyne Corporation1 JAARS Inc.1

Recently revised PA-23-250 (Navy UO-1) STCs

Showing the 16 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

SA539WEOther aircraft modificationsRevised Aug 31, 2023

Installation of Turbocharged Lycoming IO-540-C1B5 or IO-540- C1C5 engines.

FAA holder: TALCO Aviation

SA840WEOther aircraft modificationsRevised Aug 31, 2023

Installation of Roto-Master (Rajay) Turbo-charged Lycoming IO-540-C4B5 or -C4C5 engines. (PA-E23-250 SN 27-2505 and up).

FAA holder: TALCO Aviation

SA1845WEEngine and powerplantRevised Jan 3, 2023

Installation of Vibration Isolation Products (VIP) engine mount P/N VIP-50804-20 on various aircraft as shown on FAA Approved Model List (AML) No. SA1845WE.

FAA holder: FTG Inc.

SA10236SC (3 OF 4)Other aircraft modificationsRevised Jul 17, 2020

Installation of a GDC 31 Roll Steering Converter.

FAA holder: DAC International Inc

SA1124EACargo and special missionRevised Apr 11, 2013

Installation of enlarged cargo door in accordance.

FAA holder: Air-Mods and Repair Inc.

SA01473SE (4 OF 5)Other aircraft modificationsRevised May 21, 2008

Installation of a GTX 32 (mode C), GTX 33 (mode S), or GTX 33D (mode S with diversity) Remote Transponde.

FAA holder: Garmin AT Inc.

SA01205WI-D (2 OF 2)AvionicsRevised Nov 20, 2007

Installation of the KMD 250 Multi-Function Display System with Optional Internal VFR GPS and Optional Traffic and Weather Sensors.

FAA holder: Honeywell International Inc

SA09123AC-DAircraft structuresRevised Aug 29, 2007

Installation of S-TEC System 55 Two Axis Automatic Flight Guidance System, Model ST-607, with Optional Autotrim System. Limited to Piper models PA-23-250 and PA-E23-250, s/n 27-2000 through s/n 27-7554172. Eligible on same models when equipped with approved turbocharged engines (250 hp) and/or wing tip tanks per STC SA1480WE.

FAA holder: S-TEC Corporation

SA01303ATAvionicsRevised Nov 16, 2005

Installation of OCEM AP-3C autopilot.

FAA holder: Chelton Aviation Corporation

SA4008NMElectrical systemsRevised Sep 30, 2005

Installation of removable panels on the battery box slides.

FAA holder: Bogert Aviation

SA00161BO (3 OF 3AvionicsRevised Feb 7, 2005

Installation of Avidyne Corporation FlightMax 700-00007-( ) EX500 Multi-Function Display.

FAA holder: Avidyne Corporation

SA02217AK (4 OF 5)Other aircraft modificationsRevised Nov 30, 2004

Installation of Garmin AT Model GDL90 UAT Data Link System, in accordance with Garmin AT, Inc., GDL 90 UAT Master Data List, P/N 560-0278-01, Revision A, dated November 12, 2004, or later FAA approved revision.

FAA holder: Garmin AT Inc.

SA02655AT (2 OF 2)Other aircraft modificationsRevised Aug 31, 2004

Installation of JAARS Model F5K Automatic Flight Following System (AFFS) in Helio H-295 type aircraft.

FAA holder: JAARS Inc.

SA978WEOther aircraft modificationsRevised Aug 17, 2004

Installation of turbosupercharged Lycoming O-540-C4B5 engines. Approved for serial numbers 27-2505 and subsequent.

FAA holder: GE Engine Services-Corporate Aviation Inc. DBA Garrett Aviation Services

SA10126SC (2 OF 2)Other aircraft modificationsRevised Oct 23, 2003

Installation of Aero Advantage ADV200 series vacuum pump per Aero Advantage Drawing Number ADVMSI 500 latest FAA approved revision.

FAA holder: Aero Holdings Ltd. a Texas limited partnership

SA852WEOther aircraft modificationsRevised Apr 9, 2003

Turbosupercharged Lycoming O-540-A1B5, -A1D5, or -A3D5 engines (S/N's 27-1 thru 27-2504).

FAA holder: GE Engine Services-Corporate Aviation Inc. DBA Garrett Aviation Services