Aircraft STC directory

Textron Lycoming AVCO IO-540-C4B5 STCs

The Jun 30, 2026 FAA DRS snapshot contains 5 selected supplemental type certificates with status Current whose public applicability data names the Textron Lycoming AVCO IO-540-C4B5. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

listed Current at snapshot

holder directories

modification categories

Aug 31, 2023

latest recorded revision

Modification demand surface

Other aircraft modifications4 Fuel systems1

Recorded holders

TALCO Aviation1 Shadin Avionics1 GE Engine Services-Corporate Aviation Inc. DBA Garrett Aviation Services1

Recently revised IO-540-C4B5 STCs

Showing the 5 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

SE6WEOther aircraft modificationsRevised Aug 31, 2023

Installation of two Roto-Master Turbochargers Model No. 3DT5FF10J2, P/N 600572-00 (formerly Rajay Model 315F10, P/N RJ0080-100, or 102).

FAA holder: TALCO Aviation

View record

SE8193SWOther aircraft modificationsRevised Jul 31, 2008

Grind nitriden high compression cylinder barrles to plus .010 oversize and install SL75089 P10 piston, SL74242 P10 compression ring, and SL73857 P10 oil ring.

FAA holder: Superior Air Parts Inc.

View record

SE611GLFuel systemsRevised Jun 8, 2006

Incorporation of a fuel flow transducer.

FAA holder: Shadin Avionics

View record

SE01930NY (2 OF 2)Other aircraft modificationsRevised Sep 12, 2005

Installation of Casper Labs 90 degree oil filter housing adapter.

FAA holder: Casper Labs Inc

View record

SE21WEOther aircraft modificationsRevised Apr 9, 2003

Installation of Turbosupercharger 406610-3.

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

View record