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Aircraft STC directory

Lycoming Engines AEIO-540-D4B5 STCs

The Jun 30, 2026 FAA DRS snapshot contains 3 selected supplemental type certificates with status Current whose public applicability data names the Lycoming Engines AEIO-540-D4B5. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

3
listed Current at snapshot
3
holder directories
2
modification categories
Nov 22, 2024
latest recorded revision

Modification demand surface

Engine and powerplant2
Other aircraft modifications1

Recorded holders

SureFly Partners Ltd.1Ly-Con Rebuilding Company1Shauck Dr Maxwell E Jr.1

Recently revised AEIO-540-D4B5 STCs

Showing the 3 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.