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Aircraft STC directory

Cessna Aircraft 551 STCs

The Jun 30, 2026 FAA DRS snapshot contains 44 selected supplemental type certificates with status Current whose public applicability data names the Cessna Aircraft 551. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

44
listed Current at snapshot
24
holder directories
8
modification categories
Mar 15, 2021
latest recorded revision

Modification demand surface

Other aircraft modifications25
Avionics6
Cargo and special mission5
Electrical systems2
Aircraft connectivity2
Cabin and interiors2
Engine and powerplant1
Safety and emergency equipment1

Recorded holders

Aviation Fabricators Inc5Textron Aviation Inc3Rosen Sunvisor Systems LLC3Elliott Aviation Technical Products3Learjet Inc.3Air Comm Corporation2Paul/ Lanna Egan LLC2Landmark Aviation2LifePort LLC1Purolator Facet, Inc1Securaplane Technologies1Icarus Avionics, LLC1AeroMech Incorporated1Shadin Avionics1Garmin AT Inc.1Garrett Aviation Services1Premier Air Center Inc1Avidyne Corporation1West Star Aviation1MidCanada Mod Center1

Recently revised 551 STCs

Showing the 44 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.