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Aircraft STC directory

Raytheon Aircraft C90 STCs

The Jun 30, 2026 FAA DRS snapshot contains 49 selected supplemental type certificates with status Current whose public applicability data names the Raytheon Aircraft C90. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

49
listed Current at snapshot
29
holder directories
11
modification categories
Sep 1, 2023
latest recorded revision

Modification demand surface

Other aircraft modifications15
Engine and powerplant9
Avionics6
Cargo and special mission5
Electrical systems4
Propellers3
Aircraft structures3
Cabin and interiors1
Flight controls1
Aircraft connectivity1
Safety and emergency equipment1

Recorded holders

Fargo Jet Center4Honeywell International Inc3Raisbeck Engineering Inc.2S-TEC Corporation2Pratt & Whitney Engine Services Inc.2Garmin AT Inc.2Aviation Fabricators Inc2Med-Pac Inc.2Blackhawk Modifications Inc.2Sierra Nevada Corporation/Integrated Mission Systems1McCauley Propeller Systems1Concorde Battery Corporation1Textron Aviation Inc1Paul/ Lanna Egan LLC1Shurka Aerospace Inc1Dynamic Aviation Group Inc.1Shadin Avionics1SMR Technologies Inc1Rockwell Collins Inc1CenTex Aerospace Inc.1

Recently revised C90 STCs

Showing the 49 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

SA10364SCOther aircraft modifications

Installation of Pratt & Whitney Canada PT6A-135A engines and McCauley 4HFR34C762/94LMA-4 or 4HFR34C768/94LMA-4 propellers in accordance with Blackhawk Modifications, Inc. Drawing No. 19005-01, Rev. IR, dated March 15, 2004, Installation Instructions, or later FAA approved revision. FAA approved AFMS Document No. 19005, Rev. IR, dated November 24, 2004, or later FAA approved revision is required.

FAA holder: Blackhawk Modifications Inc.

View record
SA10339SCEngine and powerplant

Installation of CenTex Inc. proprietary engine torque indicating system including engine transducer and cockpit indicator in accordance with CenTex Aerospace, Inc. drawing no 008-0000-1000, Rev. A, dated September 2, 2004, or later FAA approved revision. Type design data is contained in CenTex Aerospace, Inc. Master Drawing List 008-0000-0000, Rev. A, dated September 2, 2004 or later FAA approved version. Required instructions for continued airworthiness are contained in CenTex Aerospace, Inc. drawing no 008-0000-1000, Rev. A, dated September 2, 2004, or later FAA approved revision.

FAA holder: CenTex Aerospace Inc.

View record