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Aircraft STC directory

Twin Commander Aircraft 690 STCs

The Jun 30, 2026 FAA DRS snapshot contains 49 selected supplemental type certificates with status Current whose public applicability data names the Twin Commander Aircraft 690. 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
27
holder directories
11
modification categories
Apr 6, 2026
latest recorded revision

Modification demand surface

Other aircraft modifications14
Fuel systems12
Avionics10
Landing gear and brakes3
Electrical systems3
Cargo and special mission2
Flight controls1
Engine and powerplant1
Cabin and interiors1
Propellers1
Aircraft structures1

Recorded holders

Floats & Fuel Cells7Signature Flight Support Corporation4Twin Commander Aircraft LLC3Eagle Creek Aviation Services3Kaman Corporation Aircraft Wheel and Brake LLC2S-TEC Corporation2Aero Air, LLC2Gulfstream Aerospace Corporation2Maxcraft Avionics Ltd.1BHE & Associates LTD1Metrea Special Aerospace ISR Inc.1Acron Aviation Inc.1Air Comm Corporation1LifePort LLC1Paul/ Lanna Egan LLC1Aircraft Components Inc1Brittain Industries, Inc1Contact Aviation LLC1Commuter Air Technology Inc1Northern Airborne Technology Ltd1

Recently revised 690 STCs

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

SA1177GLElectrical systems

Install Aero Medical Products Mfg., Inc. Air Ambulance Stretcher P/N 125 using Installation Kit P/N 800 in accordance with Installation and Operating Instructions, Form EA 109K, dated April 23, 2001, or later FAA approved revisions. The Medical Oxygen System Kit P/N 807 is an FAA approved option. The Inverter/Pump Kit No. 812 may be installed in accordance with Inverter/Pump Installation Instructions, EA Form 170, dated June 9, 2001, or later FAA approved revisions.

FAA holder: Paul/ Lanna Egan LLC

View record
SA01078SEFuel systems

Installation of externally mounted fuel pump manufactured in accordance with Master Drawing List AEA105-90, Revision A, dated April 5, 2002, or later FAA approved revision, and installed in accordance with Installation Instructions VT-AEA105-12, Revision IR, dated April 5, 2002, or later FAA approved revision. Maintain in accordance with Instructions for Continued Airworthiness AEA-105-13, Revision IR, dated April 5, 2002, or later FAA approved revision.

FAA holder: Aero Air, LLC

View record