The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 5, 2026

Continental IO-550-G

115 aircraft on the U.S. register carry a Continental IO-550-G engine, rated at about 280 horsepower. The Mooney M-20 is the model most often fitted with it (96 aircraft). The aircraft carrying it were built between 1985 and 2020.

The FAA records engines by code, usually at the level of a series ("O-320 series") rather than the exact variant; this page gathers every FAA code that reads as Continental IO-550-G. FAA spelling: IO-550-G.

Fitted to model families

Mooney M-2096Barracuda N380L Llc NLA-2751Browning Frank QUESTAIR VENTURE1Busch Robert M F-1 ROCKET II1Cessna U206 Stationair1Griffin James Howard GRIFFIN SPECIAL1Hane Carter H LANCAIR ES/FB1Hatton Frederick L LANCAIR LEGACY1Kilani Reda LANCAIR IV1Mercer Gerald G QUEST AIR VENTURE1Michael Kelley M KELLEY LANCAIR ES1Robens Jane F QUESTAIR VENTURE1

Mooney M-20 · Barracuda N380L Llc NLA-275 · Browning Frank QUESTAIR VENTURE · Busch Robert M F-1 ROCKET II · Cessna U206 Stationair · Griffin James Howard GRIFFIN SPECIAL · Hane Carter H LANCAIR ES/FB · Hatton Frederick L LANCAIR LEGACY · Kilani Reda LANCAIR IV · Mercer Gerald G QUEST AIR VENTURE

Where they are owner's state

Texas11Florida11California11Delaware8Louisiana5New Mexico4North Carolina4Montana4Kansas4Alabama4

Kind of aircraft

Piston singles114 (99%)Turboprops1 (0.9%)

When the aircraft were built by decade

02041628211940119807199082200016201012020

What the FAA has certified, ordered and been told about the Continental IO-550-G the component layer

The design is held under 1 type certificate (E3SO, held by Continental Aerospace Technologies, INC.). The FAA has issued 23 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 25 failure reports with the FAA since 1995, 8 of them in the last ten years.

FAA orders 23 airworthiness directives · newest first

2023-10-262023-17-04 · Reciprocating Engine Oil System · engine
2023-03-152023-05-16 · Reciprocating Engine Power Section · engine
2023-02-232023-04-08 · Reciprocating Engine Power Section · engine
2023-02-172023-02-12 · Engine Air Intake System · engine
2022-03-292022-04-04 · Reciprocating Engine Oil System · engine
2020-09-212020-16-11 · SUMMARY: Reciprocating Cylinder Section · engine

All orders naming the Continental IO-550-G

Failure reports 25 since · what operators and shops told the FAA

01245990515120

Parts most often reported as the reports name them

Rod End3Oil Cooler2Pump2Actuator1Bearing1Bolt1Bulkhead1Clamp1Cylinder1Cylinder Head1

Latest reports

2020-09-07Spark Plug: failed
2017-08-09Oil Cooler: damaged
2017-04-12Spar Web: cracked
2015-06-22Display: failed
2015-01-26Cylinder Head: cracked

Certificates and bulletins

E3SOType certificate held by Continental Aerospace Technologies, INC. · 20 models listed · revised April 6, 2020

Safety bulletins 10 · advice, not orders

2020-04-06NE-20-05 · POWERPLANT - Engine Camshaft Gear Tooth Fracture
2018-06-20NE-18-16 · POWERPLANT Alternator Drive Coupling
2017-05-10NE-17-11 · POWERPLANT Engine damage as a result of kickback
2016-03-08NE-16-13 · Powerplant - Prohibited use of sealant
2013-02-08NE-13-15 · Engine Controls: Continental Motors, Inc. (CMI) Throttle and Mixture Control Levers

Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.

Connections how this engine series links to the rest of the register

Fitted to
Where they are
Biggest operators
Airworthiness

These connections as data: /graph/engine/continental-io-550-g.json · about the eFlight graph.

Aircraft newest certificates first · 115

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N78PE Mooney
M20R
Fixed-wing, single engine Fun Aviation LLC
Rockford, Michigan
Standard 2010-06-28 ValidFAA registration status code V: Valid registration. All codes
N888KN Mooney
M20R
Fixed-wing, single engine Individual owner
Louisiana
Standard 2009-01-23 ValidFAA registration status code V: Valid registration. All codes
N431GX Mooney
M20R
Fixed-wing, single engine Hb Acquisitions LLC
North Miami, Florida
Standard 2008-12-31 ValidFAA registration status code V: Valid registration. All codes
N929SA Mooney
M20R
Fixed-wing, single engine North American Racing Institute
Wilmington, Delaware
Standard 2008-11-26 ValidFAA registration status code V: Valid registration. All codes
N63LJ Mooney
M20R
Fixed-wing, single engine Lj Marshall Enterprises LLC
La Mesa, California
Standard 2008-10-03 ValidFAA registration status code V: Valid registration. All codes
N15PD Mooney
M20R
Fixed-wing, single engine Individual owner
Virginia
Standard 2008-02-01 ValidFAA registration status code V: Valid registration. All codes
N281JP Mooney Aircraft Corp.
M20S
Fixed-wing, single engine Individual owner
Texas
Standard 2008-01-10 ValidFAA registration status code V: Valid registration. All codes
N463G Griffin James Howard
GRIFFIN SPECIAL
Fixed-wing, single engine Individual owner
Texas
Experimental 2007-08-21 ValidFAA registration status code V: Valid registration. All codes
N53TL Smith Glenn W
VENTURE
Fixed-wing, single engine Individual owner
Florida
Experimental 2007-07-09 ValidFAA registration status code V: Valid registration. All codes
N533LJ Mooney
M20R
Fixed-wing, single engine Hazelhurst INC
Middletown, Delaware
Standard 2006-08-18 ValidFAA registration status code V: Valid registration. All codes
N8VQ Browning Frank
QUESTAIR VENTURE
Fixed-wing, single engine Individual owner
North Carolina
Experimental 2004-03-01 ValidFAA registration status code V: Valid registration. All codes
N90LH Mooney
M20R
Fixed-wing, single engine Lb Aviation INC
Wilmington, Delaware
Standard 1999-08-20 ValidFAA registration status code V: Valid registration. All codes
N722FM Mooney
M20R
Fixed-wing, single engine A/C Airwaves LLC
Seattle, Washington
Standard 1999-07-24 ValidFAA registration status code V: Valid registration. All codes
N5251F Mooney International Corp
M20R
Fixed-wing, single engine Waypoint Services LLC
Missoula, Montana
Standard ValidFAA registration status code V: Valid registration. All codes
N698PM Mooney
M20R
Fixed-wing, single engine 88West Jet Sales LLC
Wisconsin Rapids, Wisconsin
Standard ValidFAA registration status code V: Valid registration. All codes
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Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 5, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.