# Search: 550

Supplemental type certificates: 613 matches in release 2026-10-30. Page 1.

- [STC SE1688GL](https://openairdocs.org/stc/SE1688GL.md): Installation of a Shadin Company fuel flow transducer. · Shadin Avionics
  > ["IO-**550**-C","IO-**550**-L","IO-**550**-A","IO-**550**-N","IO-**550**…
- [STC SE01628NY](https://openairdocs.org/stc/SE01628NY.md): Modification of starter adapter by substitution or rework of accessory drive parts. · Canadian Aero Manufacturing
  > ["IO-346-A","IO-346-B","IO-**550**-A","IO-**550**-B","IO-**550**…
- [STC SA01597SE](https://openairdocs.org/stc/SA01597SE.md): Manufacture of replacement seats · Oregon Aero Inc
  > ["LC40-**550FG**","LC41-**550FG**","LC42-**550FG**","T240"]
- [STC SA02003CH](https://openairdocs.org/stc/SA02003CH.md): Installation of propeller de-icing system. · Kelly Aerospace Thermal Systems LLC
  > ["LC40-**550FG**","LC41-**550FG**","LC42-**550FG**"]
- [STC SA02260CH](https://openairdocs.org/stc/SA02260CH.md): Installation of Thermawing de-icing system. · Kelly Aerospace Thermal Systems LLC
  > ["LC40-**550FG**","LC41-**550FG**","LC42-**550FG**"]
- [STC SA4-550](https://openairdocs.org/stc/SA4-550.md): Standard Beech A-35 Fuel System modified. · Trudeau Mike
  > SA4-**550**
- [STC ST01069WI-D](https://openairdocs.org/stc/ST01069WI-D.md): Installation of Honeywell Mark VII Enhanced Ground Proximity Warning System. Approved for installation on model 550, serial numbers 550-627 through 550-0800. · Textron Aviation Inc.
  > …Approved for installation on model **550**, serial numbers **550**-627 through **550**-0800.
- [STC SA01838SE](https://openairdocs.org/stc/SA01838SE.md): Installation of sunvisor assembly part number 1381000 · Rosen Sunvisor Systems LLC
  > ["LC40-**550FG**","LC41-**550FG**","LC42-**550FG**","T240"]
- [STC SE02930AT](https://openairdocs.org/stc/SE02930AT.md): STC for conversion of TCM IO-550-G to Model IO-550-G-PL that has the same performance ratings and limitations as TCM Model IO-550-N. · Mooney International Corp
  > STC for conversion of TCM IO-**550**-G to Model IO-**550**-G-PL…
- [STC SA01435WI](https://openairdocs.org/stc/SA01435WI.md): Installation of TKS Ice Protection System Components, with placard stating, 'INTENTIONAL FLIGHT INTO  KNOWN ICING IS PROHIBITED' · CAV Ice Protection Inc
  > ["LC40-**550FG**","LC41-**550FG**","LC42-**550FG**"]
- [STC SE00223SE](https://openairdocs.org/stc/SE00223SE.md): Installation of Auto-Valve Inc oil drain valve · Rocket Engineering Corporation
  > ["IO-**550**-A","TSIO-520-N","TSIO-520-NB","TSIOL-**550**-A","TSIOL-**550**…
- [STC SE03705AT](https://openairdocs.org/stc/SE03705AT.md): Convert Continental Motors IO-550-D,-E,-F and -L engine to Vitatoe Aviation, LLC IO-550-D-CF,-E-CF,-F-CF or -L-CF engine in accordance with Master Parts List PL2007-07 Rev. D dated 05 Oct. 2018 or later FAA approved revision and Assembly Instructions PL2007-12 Rev. C dated 05 Oct. 2018 or later FAA approved revision. · Vitatoe Aviation LLC
  > Convert Continental Motors IO-**550**-D,-E,-F and -L engine to Vitatoe Aviation…
- [STC SA01060SE](https://openairdocs.org/stc/SA01060SE.md): Installation of a semi-portable oxygen system. · Precise Flight Inc
  > ["LC40-**550FG**","LC42-**550FG**"]
- [STC SA03147CH](https://openairdocs.org/stc/SA03147CH.md): Removal of air conditioning scoop · Kelly Aerospace Thermal Systems LLC
  > ["LC41-**550FG**","LC42-**550FG**"]
- [STC SA03148CH](https://openairdocs.org/stc/SA03148CH.md): Modification of exhaust tail pipes · Kelly Aerospace Thermal Systems LLC
  > ["LC41-**550FG**","LC42-**550FG**"]
- [STC SE02525AT](https://openairdocs.org/stc/SE02525AT.md): Modification to install new engine mount brackets. · Summit Aviation Inc
  > ["IO-**550**-N","IO-**550**-P"]
- [STC SA03150CH](https://openairdocs.org/stc/SA03150CH.md): Installation of oil cooler door kit · Kelly Aerospace Thermal Systems LLC
  > ["LC41-**550FG**","LC42-**550FG**"]
- [STC SE7433SW](https://openairdocs.org/stc/SE7433SW.md): Installation of Performance Engineering roller rocker arms. · Performance Engineering
  > ["IO-**550**-C","IO-**550**-B"]
- [STC SE09963SC](https://openairdocs.org/stc/SE09963SC.md): Installation of modified fuel injector nozzles. · General Aviation Modifications, Inc.
  > ["IO-360-ES","IO-**550**-R","IO-**550**-G","IO-**550**-N","TSIO-**550**…
- [STC ST03948AT](https://openairdocs.org/stc/ST03948AT.md): Master Caution Panel with LED Lighting on the Cessna Model 550 Aircraft · Stevens Aviation Inc.
  > Master Caution Panel with LED Lighting on the Cessna Model **550** Aircraft

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