# Continental TSIO-550-B

- Type: Engine model (FAA registry)
- Registry code: 17245
- Manufacturer (registry): CONT MOTOR
- Model: TSIO-550-B
- Engine type: Reciprocating
- Power: 350 hp
- Data sheet: [TCDS E5SO](https://openairdocs.org/tcds/E5SO) (OpenAirDocs)
- Holder: Continental Aerospace Technologies, Inc.
- Installed in: 7 registered aircraft
- Page: https://openairdocs.org/engine/continental-tsio-550-b

Model codes come from the FAA registry's reference file.

## ADs that may apply (OpenAirDocs)

Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 2023-09-09](https://openairdocs.org/ad/2023-09-09): Exhaust Turbine System (Recip) · Aerostar PA-60-600 (Aerostar 600), PA-60-601 (Aerostar 601), PA-60-601P (Aerostar 601P) and 292 more. Effective Jul 17, 2023
- [AD 2023-05-16](https://openairdocs.org/ad/2023-05-16): Reciprocating Engine Power Section · Continental Aerospace Technologies GTSIO-520-C, GTSIO-520-D, GTSIO-520-H and 147 more. Effective Mar 15, 2023
- [AD 2023-02-12](https://openairdocs.org/ad/2023-02-12): Engine Air Intake System · Continental Aerospace Technologies GTSIO-520-C, GTSIO-520-D, GTSIO-520-E and 127 more. Effective Feb 17, 2023
- [AD 2020-16-11](https://openairdocs.org/ad/2020-16-11): SUMMARY: Reciprocating Cylinder Section · Continental Aerospace Technologies GTSIO-520-C, GTSIO-520-D, GTSIO-520-H and 23 more. Effective Sep 21, 2020
- [AD 2016-16-12](https://openairdocs.org/ad/2016-16-12): Cylinder assemblies · Continental Motors LTSIO-520-AE, TSIO-520-A, TSIO-520-AE and 89 more. Effective Sep 15, 2016
- [AD 2012-03-06](https://openairdocs.org/ad/2012-03-06): Fuel servo diaphragm · Continental Motors 6-260-A, 6-285-A, 6-285-B and 482 more. Effective Feb 24, 2012
- [AD 2010-11-04](https://openairdocs.org/ad/2010-11-04): Hydraulic lifters · Continental Motors FSO-470-A, GIO-470-A, GTSIO-520-C and 190 more. Effective Jun 16, 2010
- [AD 2010-07-08](https://openairdocs.org/ad/2010-07-08): Turbochargers · Kelly Aerospace Energy Systems HIO-360-E1AD, HIO-360-E1BD, HIO-360-F1AD and 137 more. Effective Apr 19, 2010
- [AD 2007-16-10](https://openairdocs.org/ad/2007-16-10): Kelly Aerospace Power Systems turbochargers · Turbonormalizing system (Engine Technologies STC SE10589SC or SA10588SC). Effective Aug 23, 2007
- [AD 2004-08-10](https://openairdocs.org/ad/2004-08-10): Serial-numbered (SN) cylinders · Modify Teledyne Continental TSIO-520-NB engine (RAM Aircraft Limited Partnership STC SE09104SC or 4 others). Effective May 5, 2004
- [AD 2000-23-21](https://openairdocs.org/ad/2000-23-21): Crankshaft · Continental Motors IO-360-A, IO-360-AB, IO-360-B and 164 more. Effective Dec 12, 2000
- [AD 99-19-01](https://openairdocs.org/ad/99-19-01): No. 2 and No. 5 Crankshaft Inspections · Continental Motors GTSIO-520-C, GTSIO-520-D, GTSIO-520-E and 127 more. Effective Sep 30, 1999
- [AD 96-12-22](https://openairdocs.org/ad/96-12-22): Full Flow Engine Oil Adapter · Bellanca CH-300 Pacemaker, 120, 140 and 361 more. Effective Jul 31, 1996
- [AD 93-16-15](https://openairdocs.org/ad/93-16-15): Fuel Pump Drive Shaft · Continental Motors IO-520-B, IO-520-BA, IO-520-BB and 27 more. Effective Dec 14, 1993
- [AD 93-10-02](https://openairdocs.org/ad/93-10-02): Missing Cylinder Valve Retainer Key · Continental Motors GTSIO-520-C, GTSIO-520-D, GTSIO-520-E and 180 more. Effective Aug 12, 1993

Historical (superseded or no longer in force):

- [AD 2023-04-08](https://openairdocs.org/ad/2023-04-08) (historical): Reciprocating Engine Power Section · Continental Aerospace Technologies GTSIO-520-C, GTSIO-520-D, GTSIO-520-H and 141 more. Effective Feb 23, 2023
- [AD 2009-24-52](https://openairdocs.org/ad/2009-24-52) (historical): Hydraulic lifters · Continental Motors FSO-470-A, GIO-470-A, GTSIO-520-C and 192 more
- [AD 2000-08-51](https://openairdocs.org/ad/2000-08-51) (historical): Crankshaft · Teledyne Continental Motors IO-360-A, IO-360-AB, IO-360-B and 158 more
- [AD 99-09-17](https://openairdocs.org/ad/99-09-17) (historical): Crankshaft · Teledyne Continental Motors IO-470-A, IO-470-C, IO-470-D and 114 more

## Information bulletins (advisory) (9)

- [SAIB NE-20-05](https://openairdocs.org/saib/NE-20-05): POWERPLANT - Engine Camshaft Gear Tooth Fracture. Issued Apr 6, 2020
- [SAIB NE-18-16](https://openairdocs.org/saib/NE-18-16): POWERPLANT  Alternator Drive Coupling. Issued Jun 20, 2018
- [SAIB NE-17-11](https://openairdocs.org/saib/NE-17-11): POWERPLANT  Engine damage as a result of kickback. Issued May 10, 2017
- [SAIB NE-16-13](https://openairdocs.org/saib/NE-16-13): Powerplant - Prohibited use of sealant. Issued Mar 8, 2016
- [SAIB NE-13-15](https://openairdocs.org/saib/NE-13-15): Engine Controls: Continental Motors, Inc. (CMI) Throttle and Mixture Control Levers. Issued Feb 8, 2013
- [SAIB NE-13-04](https://openairdocs.org/saib/NE-13-04): Continental Motors, Inc. (CMI) Connecting Rod Piston Pin Bushing Inspection. Issued Oct 31, 2012
- [SAIB NE-10-09](https://openairdocs.org/saib/NE-10-09): Reciprocating Engine Power Section: Hydraulic Valve Lifters. Issued Nov 20, 2009
- [SAIB NE-09-08](https://openairdocs.org/saib/NE-09-08): Reciprocating Engine Cylinder Section. Issued Jan 30, 2009
- [SAIB NE-02-41](https://openairdocs.org/saib/NE-02-41): . Issued Aug 8, 2002

## Registered aircraft (7)

- [N100GW](https://openairdocs.org/aircraft/N100GW): [Wilcox Gary L](https://openairdocs.org/faa-owner/WILCOX%20GARY%20L), [Montgomery, TX](https://openairdocs.org/faa-place/TX/Montgomery), built 2008, S/N LIV-292
- [N136CS](https://openairdocs.org/aircraft/N136CS): [Clear Light LLC](https://openairdocs.org/faa-owner/CLEAR%20LIGHT%20LLC), [Thetford Center, VT](https://openairdocs.org/faa-place/VT/Thetford%20Center), S/N LIV-260
- [N4YX](https://openairdocs.org/aircraft/N4YX): [Froelich Robert E](https://openairdocs.org/faa-owner/FROELICH%20ROBERT%20E), [Mesa, AZ](https://openairdocs.org/faa-place/AZ/Mesa), built 2015, S/N LIV 017
- [N604VJ](https://openairdocs.org/aircraft/N604VJ): [Voda John A](https://openairdocs.org/faa-owner/VODA%20JOHN%20A), [New Port Richey, FL](https://openairdocs.org/faa-place/FL/New%20Port%20Richey), built 2016, S/N LIV-514
- [N7935H](https://openairdocs.org/aircraft/N7935H): [Baker Clark V](https://openairdocs.org/faa-owner/BAKER%20CLARK%20V), [College Station, TX](https://openairdocs.org/faa-place/TX/College%20Station), built 1992, S/N CE-1640
- [N800RH](https://openairdocs.org/aircraft/N800RH): [Heidebrink Ronald](https://openairdocs.org/faa-owner/HEIDEBRINK%20RONALD), [West Chester, OH](https://openairdocs.org/faa-place/OH/West%20Chester), built 2011, S/N 003
- [N961PC](https://openairdocs.org/aircraft/N961PC): [Formaflight II LLC](https://openairdocs.org/faa-owner/FORMAFLIGHT%20II%20LLC), [Austin, TX](https://openairdocs.org/faa-place/TX/Austin), built 2006, S/N LIV-257

## NTSB investigations

None matched to aircraft with this engine model.

## FAA accident and incident reports (2)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20181215023249I](https://openairdocs.org/incident/20181215023249I), Dec 15, 2018: Froelich Robert E LANCAIR IV (N4YX), Bountiful, UT, Minor damage. According to the pilot, "on 12/15/2018 at approximately at 1155 mountain standard time (MST) a Froelich Robert E. Lancair IV was returning from flight and…
- [Incident 20120128000509I](https://openairdocs.org/incident/20120128000509I), Jan 28, 2012: Thomas Kevin LANCAIR IV-P (N961PC), Sherman, TX, Minor damage. Departed mckinney TX airport (ktki) for pleasure flight. Landed at Sherman TX airport (kswi), rwy 16 without lowering landing gear. Pilot stated that, "I…

## Service difficulty reports (6)

As reported by operators and repair stations, by the model named in the report.

- [SDR 2018FA0000347](https://openairdocs.org/sdr/2018FA0000347), Jun 10, 2018: ALTERNATOR. FAILED. DURING DESCENT, LOSS OF ELECTRIC POWER. SELECTED STANDBY ALTERNATOR. UNABLE TO EXTEND GEAR ELECTRICALLY. MANUALLY EXTENDED GEAR AND LANDED UNEVENTFULLY. TROUBLE
- [SDR 2011FA0000272](https://openairdocs.org/sdr/2011FA0000272), Mar 28, 2011: CYLINDER HEAD. CRACKED. WHILE PERFORMING A CONDITION INSPECTION ON THE ENGINE, A CRACK WAS FOUND IN THE AREA OF THE INTAKE VALVE ON NR 6 CYLINDER. CYLINDER AND PISTON ARE ORIGINAL TO T
- [SDR 2011FA0000273](https://openairdocs.org/sdr/2011FA0000273), Mar 28, 2011: PISTON. CRACKED. WHILE PERFORMING A CONDITION INSPECTION OF THE ENGINE, A CRACK WAS FOUND ON NR 6 INTAKE AREA. AFTER REMOVAL OF CYLINDER, THE PISTON WAS FOUND TO HAVE A LARGE PA
- [SDR T7419](https://openairdocs.org/sdr/T7419), May 9, 2005: BULKHEAD. CRACKED. SPINNER BULKHEAD CRACKING AT 50HRS TKS WAS INSTALLED BY AIRCRAFT FACTORY. 1ST BULKHEAD REPLACED AT 104 HRS, 2CD BULKHEAD REPLACED AT 249.5 HRS. COULD NOT DETERM
- [SDR AUS20031142](https://openairdocs.org/sdr/AUS20031142), May 6, 2003: RACK. FAULTY. (AUS) AUTOPILOT RACK FAULTY. RACK WAS TOO LONG FOR COMPUTER AND THE PINS WOULD NOT MATE CORRECTLY. RACK WAS A NEW ITEM.
- [SDR 2002FA0000463](https://openairdocs.org/sdr/2002FA0000463), Apr 10, 2002: SHAFT. FAILED. AIRCRAFT ENGINE EXPERIENCED A LOSS OF OIL PRESSURE AND SUBSEQUENT LOSS OF POWER. ENGINE TEARDOWN INSPECTION REVEALED A FAILURE OF THE STARTER ADAPTER SHAFT.

## STCs that may be installed (OpenAirDocs) (11)

Approved for this engine model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SE03309CH](https://openairdocs.org/stc/SE03309CH): Installation of Engine Preheat Kit, p/n TSP6CYL-2927-115 for 115 volt application. Hartzell Propeller Inc
- [STC SE04577CH](https://openairdocs.org/stc/SE04577CH): Install an electronic engine ignition system. Electroair Acquisition Corp
- [STC SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc
- [STC SE09846SC](https://openairdocs.org/stc/SE09846SC): Installation of S539800M30 starter adapter springs. Aircraft Specialties Services Inc
- [STC SE01628NY](https://openairdocs.org/stc/SE01628NY): Modification of starter adapter by substitution or rework of accessory drive parts. Canadian Aero Manufacturing
- [STC SE09963SC](https://openairdocs.org/stc/SE09963SC): Installation of modified fuel injector nozzles. General Aviation Modifications, Inc
- [STC SE09513SC](https://openairdocs.org/stc/SE09513SC): Installation and usage of Exxon 20W50 Multigrade aircraft engine oil conforming to Exxon Oil Formulation WS-3013. Exxon Company USA
- [STC SE09559SC](https://openairdocs.org/stc/SE09559SC): Installation of US Airparts roller rocker arm assemblies P/N US92E exhaust and US92I intake. US Airparts, Inc
- [STC SE09319SC](https://openairdocs.org/stc/SE09319SC): Modify oil pan adding a new oil sump drain. Texas Skyways Inc. Lists TSIO-550 Series
- [STC SE00350SE](https://openairdocs.org/stc/SE00350SE): Installation of sump mounted chip detector. Aviation Development Corporation

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