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FAA-listed STC holder

D'Shannon Products Ltd. STCs

The Jun 30, 2026 FAA DRS snapshot lists 117 selected supplemental type certificates with status Current under D'Shannon Products Ltd.. The records span 235 public aircraft directories and 10 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.

117
listed Current at snapshot
235
aircraft directories
10
modification categories
Dec 1, 2025
latest recorded revision

Modification mix

Engine and powerplant28
Other aircraft modifications28
Fuel systems18
Propellers13
Flight controls11
Aircraft performance8
Aircraft structures7
Landing gear and brakes2
Cabin and interiors1
Avionics1

Aircraft represented

Cessna Aircraft 182178 STCsCessna Aircraft 182A157 STCsCessna Aircraft 182E157 STCsCessna Aircraft 172154 STCsCessna Aircraft 182B154 STCsCessna Aircraft 182C152 STCsCessna Aircraft 182F152 STCsCessna Aircraft 182D150 STCsCessna Aircraft 182G150 STCsCessna Aircraft 182K149 STCsCessna Aircraft 182H148 STCsCessna Aircraft 182J148 STCsCessna Aircraft 182P148 STCsCessna Aircraft 172K147 STCsCessna Aircraft 172D146 STCsCessna Aircraft 172E146 STCsCessna Aircraft 172M146 STCsCessna Aircraft 182L146 STCsCessna Aircraft 172I145 STCsCessna Aircraft 172N145 STCs

Recently revised records

Showing the 100 most recently revised records. Category directories provide the complete paginated discovery path.

SA493CHEngine and powerplant

Increase in maximum gross weight from 3600 lbs. to 3700 lbs. with installation of Continental I0-550-B engine in accordance with D'Shannon Products Installation Instruction 71-20-00, dated 10/20/88, or later FAA-approved revision; and installation of Cooling Air Baffles in accordance with D'Shannon Products Installation Instruction DSP1M95-2, dated 6/1/95, FAA-approved 6/21/95 or later FAA Approved revisions.

FAA holder: D'Shannon Products Ltd.

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SA1-368Fuel systems

Installation of auxiliary wing tip fuel tanks in accordance with Safe Flight Extenders Company s Manual SFE-35(III) dated July 15, 1959, Tip Tank Installation, Type III Kit, utilizing parts listed on Bamber Wing Tanks Type III Kit Contents dated July 15, 1959. This wing tip tank installation may be used in combination with either the wing auxiliary tanks or a baggage auxiliary tank, but not when both are installed. Complete installed weight empty is 23.7 lb. at 89.1 inches. The CG of the tip fuel is 87.0 inches.

FAA holder: D'Shannon Products Ltd.

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SA144EAFuel systems

Approval of 200 lb. increase in Maximum gross weight for takeoff and landing when equipped with the following Flight Extenders Inc. Tip tank Installation: 15 gal (RB2-100B) or 14.7 gal (RBI-IOOG, RBI-IDOL) Fiberglass wing Solenoid Fuel System (ref STC SAl-303 dated February 20, 1959). No wing or baggage compartment auxiliary tanks are permitted with this system. This STC also places the above aircraft in the Normal and Utility categories, using the Normal Category as the basic category for purposes of placarding and marking. Flight Extenders, Inc. Installation Manual FEI-35 (4A) Rev. D dated February 15, 1964 is required.

FAA holder: D'Shannon Products Ltd.

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SA181EAFuel systems

Approval of 200 lb. increase in Maximum gross weight for takeoff and landing when equipped with the following Flight Extenders Inc. Tip tank Installation: 15 gal (RB2-100B) or 14.7 gal (RBI-IOOG, RBI-IDOL) Fiberglass wing tip fuel tanks (ref STC SA3OEA, Configuration 2 or 3) and Type II or III Kit transfer fuel system. This system eligible with Beech 20 gal wing aux. tanks or baggage compartment tanks, but not both. This STC also places the above aircraft in the Normal and Utility categories, using the Normal Category as the basic category for purposes of placarding and marking. Flight Extenders, Inc. Installation Manual FEI-35 (4A) Rev. C dated February 15, 1964 is required.

FAA holder: D'Shannon Products Ltd.

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SA808SOFuel systems

Installation of Beryl D Shannon Aviation Specialists, Inc., Fiberglass tip tanks (15 gallons each) and fuel transfer system in accordance with Beryl D Shannon Aviation Specialists, Inc., Installation Kit Drawing KB1401, Rev E, dated May 19, 1977, or later FAA approved revisions. Drawing KB1401 Revision F, dated April 12, 1979, includes optional wing-tip anti-collision light installation. This STC requires operation in the Normal Category.

FAA holder: D'Shannon Products Ltd.

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SA3-13Engine and powerplant

Install 170 hp Lycoming O-340-A1A engine and Hartzell HC-82XL-1DB/8433-12 propeller according to Doyn data listed on Engineering Releases 100 (3/22/58), 1010 (3/16/57), 1011 (8/28/57), 1012 (7/15/57), 1014 (3/30/57), 1050 (7/13/57), 1051 (& DCN 1, 12/10/57), 1052 (7/19/57), 1053 (7/19/57), 1099 (3/22/58), and Instructions (2 sheets, undated) Data required for parts manufacture: As listed on Engineering Releases 1001 (1/18/57), 1002 (12/21/57), 1003 (5/1/57), 1004 (7/13/57), 1005 (7/12/57), 1006 (3/30/57), 1007 (4/12/57), 1008 (2/27/57), 1009 (10/23/57), 1015 (2/25/56).

FAA holder: D'Shannon Products Ltd.

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SA3-672Engine and powerplant

Installation of Lycoming O-360-A1A, A1D, or B1B engine with McCauley 2D36C14-X/78KM-4 propeller or Lycoming O-360-A1A and A1D engines with Hartzell HC-C2YK-1A/7666A-2 propeller. Data required: Doyn Aircraft, Inc. Drawings: 1000, 1005 Rev. C, 1006 Rev. C, 1009, 1010 Rev. A, 1011, 1012 Rev. A, 1013, 1014, 1015, 1016, 1099, 1100 Rev. B, 1101 Rev. A, 1102, 1103 Rev. A, 1104, 1107, 1150. Drawing Changes Notices: 1005-5A, 1006-8A, 1006-6, 1009-2A, 1199-1A, 1199-2A, and 1199-3A.

FAA holder: D'Shannon Products Ltd.

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