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

Continental TSIO-520-VB

11 aircraft on the U.S. register carry a Continental TSIO-520-VB engine, rated at about 325 horsepower. The Cessna 402 is the model most often fitted with it (11 aircraft). The aircraft carrying it were built between 1979 and 1981.

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 TSIO-520-VB. FAA spelling: TSIO-520-VB.

Fitted to model families

Cessna 40211

Cessna 402

Where they are owner's state

Massachusetts3U.S. Virgin Islands2Florida2Delaware2Puerto Rico1Colorado1

Kind of aircraft

Piston twins11 (100%)

When the aircraft were built by decade

023465197061980

What the FAA has certified, ordered and been told about the Continental TSIO-520-VB the component layer

No FAA order in the current files names this engine series. Operators and repair shops have filed 654 failure reports with the FAA since 1995, 304 of them in the last ten years.

Failure reports 654 since · what operators and shops told the FAA

057114170227950005101520125

Parts most often reported as the reports name them

Exhaust Valve218Cylinder35Engine31Pump16Bolt13Connecting Rod12Nut12Distributor Gear9Fitting9Lifter9

Latest reports

2025-05-12Wire: shorted
2024-10-03Impulse Coupling: failed
2024-03-20Alternator: failed
2024-02-17Engine: failed
2023-11-30Alternator: failed

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-tsio-520-vb.json · about the eFlight graph.

Aircraft newest certificates first · 11

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N402SB Cessna
402C
Fixed-wing, multi-engine Glemone Airways INC
Wilmington, Delaware
Standard 2024-07-05 ValidFAA registration status code V: Valid registration. All codes
N400AT Cessna
402C
Fixed-wing, multi-engine Alpha Tango Aviation INC
Middletown, Delaware
Standard 2023-08-31 ValidFAA registration status code V: Valid registration. All codes
N68379 Cessna
402C
Fixed-wing, multi-engine Express Carrier LLC
St Thomas, U.S. Virgin Islands
Standard 2023-05-17 ValidFAA registration status code V: Valid registration. All codes
N270RC Cessna
402C
Fixed-wing, multi-engine Eagle 1-N270Rc LLC
San Juan, Puerto Rico
Standard 2021-03-09 ValidFAA registration status code V: Valid registration. All codes
N275RC Cessna
402C
Fixed-wing, multi-engine Individual owner
Massachusetts
Standard 2020-03-02 ValidFAA registration status code V: Valid registration. All codes
N426LJ Cessna
402C
Fixed-wing, multi-engine Venture Air Solutions INC
Opa Locka, Florida
Standard 2019-12-31 ValidFAA registration status code V: Valid registration. All codes
N346CH Cessna
402C
Fixed-wing, multi-engine Ace Flight Center INC
St Thomas, U.S. Virgin Islands
Standard 2018-06-21 ValidFAA registration status code V: Valid registration. All codes
N42AA Cessna
402C
Fixed-wing, multi-engine N42Aa LLC
Nantucket, Massachusetts
Standard 2017-08-21 ValidFAA registration status code V: Valid registration. All codes
N997TA Cessna
402C
Fixed-wing, multi-engine Air Flight INC
Fort Lauderdale, Florida
Standard 2017-02-28 ValidFAA registration status code V: Valid registration. All codes
N751CA Cessna
402C
Fixed-wing, multi-engine Hyannis Air Service INC
Hyannis, Massachusetts
Standard 2011-02-09 ValidFAA registration status code V: Valid registration. All codes
N274MR Cessna
402C
Fixed-wing, multi-engine Aero Systems INC
Broomfield, Colorado
Standard 2007-01-16 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.