Engines · piston (reciprocating) · data as of October 8, 2026

Continental IO-470 series

4,726 aircraft on the U.S. register carry a Continental IO-470 series engine, rated at about 260 horsepower. The Beechcraft 95 Travel Air and Baron 55 is the model most often fitted with it (872 aircraft). The aircraft carrying it were built between 1954 and 2003.

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-470 series (2 codes). FAA spellings: I0-470 SERIES · IO-470 SER.

Fitted to model families

Model families, as a table

	aircraft
Beechcraft 95 Travel Air and Baron 55	872
Cessna 310	804
Beechcraft 35 Bonanza and Debonair	651
Cessna 210 Centurion	623
Beechcraft P35	302
Beechcraft K35 Bonanza	222
Beechcraft J35	211
Beechcraft M35	206
Cessna 185 Skywagon	162
Beechcraft N35	152
Beechcraft E33	59
Bellanca 14	54

Beechcraft 95 Travel Air and Baron 55 · Cessna 310 · Beechcraft 35 Bonanza and Debonair · Cessna 210 Centurion · Beechcraft P35 · Beechcraft K35 Bonanza · Beechcraft J35 · Beechcraft M35 · Cessna 185 Skywagon · Beechcraft N35

Where they are owner's state

Texas560California489Florida325Arizona178Washington156Georgia155Colorado147Tennessee137Delaware134Ohio117

By state, as a table

	aircraft
Texas	560
California	489
Florida	325
Arizona	178
Washington	156
Georgia	155
Colorado	147
Tennessee	137
Delaware	134
Ohio	117

Kind of aircraft

Piston singles2,983 (63%)Piston twins1,740 (37%)Turboprops3 (0.1%)

By kind, as a table

	aircraft	share
Piston singles	2,983	63%
Piston twins	1,740	37%
Turboprops	3	0.1%

When the aircraft were built by decade

By decade built, as a table

	aircraft
1940	27
1950	585
1960	2,747
1970	610
1980	73
1990	6
2000	4

What the FAA has certified, ordered and been told about the Continental IO-470 series the component layer

The design is held under 1 type certificate (3E1, held by Continental Aerospace Technologies, INC.). The FAA has issued 28 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 114 failure reports with the FAA since 1995, 14 of them in the last ten years.

FAA orders 28 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

2022-08-152022-16-03 · Engine (RECIPROCATING) · engine

2022-03-292022-04-04 · Reciprocating Engine Oil System · engine

All orders naming the Continental IO-470 series

Failure reports 114 since · what operators and shops told the FAA

Failure reports by year, as a table

	reports
95	2
98	1
00	1
01	15
02	9
03	16
04	4
05	17
06	9
07	10
09	4
10	4
11	3
12	3
13	2
14	3
15	6
16	1
19	1
22	2
23	1

Parts most often reported as the reports name them

Bulkhead4Line4Strut4Support4Bearing3Bellcrank3Heater3Actuator2Battery2Bolt2

Parts most reported, as a table

	reports
Bulkhead	4
Line	4
Strut	4
Support	4
Bearing	3
Bellcrank	3
Heater	3
Actuator	2
Battery	2
Bolt	2

Latest reports

2023-03-29Fairing: unknown

2022-05-20Vacuum Sys: failed

2019-03-24Actuator Cable: unsecure

2016-05-17Rod: failed

Certificates and bulletins

3E1Type certificate held by Continental Aerospace Technologies, INC. · 19 models listed · revised October 12, 2022

Safety bulletins 6 · advice, not orders

2020-04-06NE-20-05 · POWERPLANT - Engine Camshaft Gear Tooth Fracture

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

2012-10-31NE-13-04 · Continental Motors, Inc. (CMI) Connecting Rod Piston Pin Bushing Inspection

2009-11-20NE-10-09 · Reciprocating Engine Power Section: Hydraulic Valve Lifters

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

Beechcraft 95 Travel Air and Baron 55 872 with this engine series
Cessna 310 804 with this engine series
Beechcraft 35 Bonanza and Debonair 651 with this engine series
Cessna 210 Centurion 623 with this engine series
Beechcraft P35 302 with this engine series
Beechcraft K35 Bonanza 222 with this engine series
Beechcraft J35 211 with this engine series
Beechcraft M35 206 with this engine series

Where they are

Texas 560 of these aircraft
California 489 of these aircraft
Florida 325 of these aircraft
Arizona 178 of these aircraft
Washington 156 of these aircraft

Biggest operators

Bas Part Sales LLC 26 of these aircraft
International Air Services INC Trustee 6 of these aircraft
Sky West Aviation INC Trustee 4 of these aircraft
Medic Choppers LLC 4 of these aircraft
Meadowlake Airpark LLC 4 of these aircraft

Airworthiness

FAA orders naming the Continental IO-470 series 28 airworthiness directives
Failure reports on the Continental IO-470 series 114 reports since 1995

Analytics

The whole map of how records connect · these connections as data: /graph/engine/continental-io-470-series.json.

Aircraft newest certificates first · 4,726

Tail no.	Maker and model	Group	Owner and base	Certificate	Status
N8333D	Beech J35	Fixed-wing, single engine	Individual owner California	Standard	Pending
N8350D	Beech J35	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard	Valid
N8446Z	Cessna 210-5	Fixed-wing, single engine	Individual owner Washington	Standard	Pending
N8457Z	Cessna 210-5(205)	Fixed-wing, single engine	Individual owner Alaska	Standard	Pending
N8536R	Bellanca 14-19-3	Fixed-wing, single engine	Individual owner Virginia	Standard	Pending
N8562M	Beech 35-B33	Fixed-wing, single engine	Individual owner Virginia	Standard	Sale reported
N8589M	Beech P35	Fixed-wing, single engine	Owosso Aircraft LLC Bancroft, Michigan	Standard	Expired dealer
N8645M	Beech 35-B33	Fixed-wing, single engine	Gulf Airbatics LTD Jennings, Louisiana	Standard	Valid
N8653M	Beech 35-B33	Fixed-wing, single engine	Medic Choppers LLC Springdale, Arkansas	Standard	Valid
N8696M	Beech P35	Fixed-wing, single engine	Individual owner Texas	Standard	Sale reported
N8913M	Beech 35-B33	Fixed-wing, single engine	Dan Jay Aircraft Sales INC Chico, California	Standard	Valid
N9409T	Cessna 210	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard	Valid
N943PW	Beech 95-B55	Fixed-wing, multi-engine	No owner on file	Standard	Pending cancellation
N9468T	Cessna 210	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard	Valid
N9476T	Cessna 210	Fixed-wing, single engine	Withheld at owner's request	Standard	Sale reported
N9489T	Cessna 210	Fixed-wing, single engine	Withheld at owner's request	Standard	Pending
N9489X	Cessna 210A	Fixed-wing, single engine	Individual owner Montana	Standard	Pending
N9494L	Cessna 210	Fixed-wing, single engine	Individual owner Missouri	Standard	Pending
N9534T	Cessna 210	Fixed-wing, single engine	Individual owner Texas	Standard	Sale reported
N9586T	Cessna 210	Fixed-wing, single engine	Individual owner Oregon	Standard	Pending
N9622Y	Beech P35	Fixed-wing, single engine	Individual owner South Carolina	Standard	Pending
N9685T	Cessna 210	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard	Valid
N9699T	Cessna 210	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard	Valid
N9717R	Beech M35	Fixed-wing, single engine	Individual owner Tennessee	Standard	Sale reported
N9765X	Cessna 210B	Fixed-wing, single engine	Individual owner Montana	Standard	Valid
N977MC	Beech 35-C33	Fixed-wing, single engine	Sigman Aviation LLC Pelion, South Carolina	Standard	Valid

Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 8, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.

	reports
95	2
98	1
00	1
01	15
02	9
03	16
04	4
05	17
06	9
07	10
09	4
10	4
11	3
12	3
13	2
14	3
15	6
16	1
19	1
22	2
23	1

	reports
95	2
98	1
00	1
01	15
02	9
03	16
04	4
05	17
06	9
07	10
09	4
10	4
11	3
12	3
13	2
14	3
15	6
16	1
19	1
22	2
23	1

	reports
95	2
98	1
00	1
01	15
02	9
03	16
04	4
05	17
06	9
07	10
09	4
10	4
11	3
12	3
13	2
14	3
15	6
16	1
19	1
22	2
23	1