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

Continental IO-470-K

5 aircraft on the U.S. register carry a Continental IO-470-K engine, rated at about 225 horsepower. The Beechcraft 35 Bonanza and Debonair is the model most often fitted with it (4 aircraft). The aircraft carrying it were built between 1962 and 1968.

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-K. FAA spelling: IO-470-K.

Fitted to model families

Beechcraft 35 Bonanza and Debonair4Beechcraft E331

Beechcraft 35 Bonanza and Debonair · Beechcraft E33

Where they are owner's state

Wyoming1Wisconsin1Tennessee1New Mexico1North Carolina1

Kind of aircraft

Piston singles5 (100%)

When the aircraft were built by decade

0124551960

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

The design is held under 1 type certificate (3E1, held by Continental Aerospace Technologies, INC.). The FAA has issued 22 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 16 failure reports with the FAA since 1995, 4 of them in the last ten years.

FAA orders 22 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
2012-02-242012-03-06 · Fuel servo diaphragm · engine

All orders naming the Continental IO-470-K

Failure reports 16 since · what operators and shops told the FAA

0012295969798990003081016119

Parts most often reported as the reports name them

Spar3Valve2Bearing1Bolt1Case1Cylinder1Engine1Fitting1Fuel Tank1Guide1

Latest reports

2019-08-14Engine: failed
2016-07-23Case: cracked
2016-01-11Pickup: failed
2010-09-02Fitting: mislocated
2008-12-08Cylinder: cracked

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
Where they are
Biggest operators
Airworthiness

These connections as data: /graph/engine/continental-io-470-k.json · about the eFlight graph.

Aircraft newest certificates first · 5

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N526H Beech
35-B33
Fixed-wing, single engine Hausch LLC
Milwaukee, Wisconsin
Standard 2026-03-14 ValidFAA registration status code V: Valid registration. All codes
N882EC Beech
35-B33
Fixed-wing, single engine N7535Z LLC
Smithfield, North Carolina
Standard 2025-06-28 ValidFAA registration status code V: Valid registration. All codes
N67LT Beech
35-C33
Fixed-wing, single engine Sky West Aviation INC Trustee
Albuquerque, New Mexico
Standard 2021-04-29 ValidFAA registration status code V: Valid registration. All codes
N6664C Beech
35-C33
Fixed-wing, single engine Valiair Limited Company Trustee
Casper, Wyoming
Standard 2021-04-13 ValidFAA registration status code V: Valid registration. All codes
N68SS Beech
E33
Fixed-wing, single engine Tcb Aviation INC
Knoxville, Tennessee
Standard 2021-01-06 ValidFAA registration status code V: Valid registration. All codes

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.