How many Diamond DA20-C1s are registered in the US?

334, in the FAA aircraft registry.

When was the Diamond DA20-C1 built?

From about 1998 to 2025. Half of those registered today were built by 2006.

What engine does the Diamond DA20-C1 have?

Most have the Continental IO-240 (83% of those registered); others have the Continental IO-200, Continental O-200.

How many accidents has the Diamond DA20-C1 had?

20 in the NTSB's database since 2008, 3 of them fatal. The most common defining event was loss of control on ground. These are counts, not rates: how many hours the fleet flew is not published.

How many Airworthiness Directives does the Diamond DA20-C1 have?

1 current ADs name the DA20-C1 airframe, 0 of them with a repeat action, and 10 more name its engines. Whether each applies to one aircraft depends on its serial number and installed equipment.

Ownership guide

Diamond DA20-C1

334 registered in the US, built from about 1998 to 2025, 2 seats, most with the Continental IO-240. Its Airworthiness Directives, its engines', and what to check before buying one.

The fleet

Registered in the US: 334
Built: 1998 to 2025
Half built by: 2006
Seats: 2
Engine type: Piston
Most common engine: Continental IO-240

Engines installed

Continental IO-240278 aircraft (83%) · 2 ADs, 0 with a repeat action
Continental IO-20028 aircraft (8%)
Continental O-20012 aircraft (4%) · 8 ADs, 0 with a repeat action

From the FAA aircraft registry, rebuilt daily. Years are those recorded on each registration.

Airworthiness Directives

1 current AD name the DA20-C1 airframe, 0 with a repeat action. Its engines carry 10 more. 4 equipment ADs name the model.

No current airframe AD mentions a repeat action.

Every AD for the Diamond DA20-C1

Accident record

20 accidents since 2008, 3 fatal (6 people killed in them, a midair counting both aircraft), 0 aircraft destroyed.

What happened

Loss of control on ground4
Loss of engine power (total)3
Loss of control in flight3
Wildlife encounter (non-bird)1
System or component failure (not the engine)1
Landing gear collapse1

Phase of flight

Landing6
Takeoff3
Enroute3
Approach2
Initial climb2

The latest

Date	Where	What happened	Injuries	NTSB number
2026-09-13	Howell, MI	Takeoff: Wildlife encounter (non-bird)	None	CEN26LA320
2026-06-25	Nephi, UT	Enroute: Loss of engine power (total)	None	WPR26LA235
2025-09-19	Terre haute, IN	Takeoff: System or component failure (not the engine)	None	CEN25LA392
2025-02-15	Culpeper, VA	Takeoff: Loss of control on ground	None	ERA25LA133
2024-10-02	Mesa, AZ	Landing: Landing gear collapse	None	WPR25LA009
2024-06-05	Southampton township, NJ	Approach: Loss of control in flight	None	ERA24LA247

From the NTSB's aviation accident database, refreshed monthly; accidents only, homebuilts left out. Counts, not rates: nobody publishes how many hours each model flies, and a training fleet flies far more than a private one. Look up any case by its number in the NTSB's CAROL.

What it costs to run

Per hour flown

Hours flown a yearhr/yrFuel burngal/hrTypical cruise; your POH and how you fly decide it.Fuel price$/galEngine overhaul$A quote from an engine shop.Hours to overhaulhrThe engine maker's published time between overhauls.Maintenance reserve$/hrEverything else that wears: tires, brakes, avionics, the unexpected.

Per year, flown or not

Insurance$/yrHangar or tiedown$/yrAnnual inspection$/yrLoan payments$/yrEverything else$/yrSubscriptions, database updates, the property tax some states charge.

Fuel: $0/hr
Engine reserve: $0/hr
A year: $0
All in, per hour: $0/hr

Everything else is yours to fill in: insurance, hangar and overhaul prices vary too much by pilot, airport and shop for a default to mean anything. Nothing you type leaves this page.

Before you buy one

Run its N-number through the AD check: every AD that names its airframe and engine, as a checklist to take to the logbooks.
For each repeat-action AD, find the last compliance in the logbooks and when the next one is due.
Compare the engine's time since overhaul with its maker's published overhaul time, and look for the reason behind any long gap in flying.
4 equipment ADs name the DA20-C1 (a muffler, a seat belt, a display): find out which of that equipment is installed.
Check the registration, the airworthiness certificate and the date of the last annual inspection.
Work out the sales or use tax your state will charge with the aircraft tax calculator.

Questions

How many Diamond DA20-C1s are registered in the US?: 334, in the FAA aircraft registry.
When was the Diamond DA20-C1 built?: From about 1998 to 2025. Half of those registered today were built by 2006.
What engine does the Diamond DA20-C1 have?: Most have the Continental IO-240 (83% of those registered); others have the Continental IO-200, Continental O-200.
How many accidents has the Diamond DA20-C1 had?: 20 in the NTSB's database since 2008, 3 of them fatal. The most common defining event was loss of control on ground. These are counts, not rates: how many hours the fleet flew is not published.
How many Airworthiness Directives does the Diamond DA20-C1 have?: 1 current ADs name the DA20-C1 airframe, 0 of them with a repeat action, and 10 more name its engines. Whether each applies to one aircraft depends on its serial number and installed equipment.

Figures from the FAA aircraft registry and the FAA's Airworthiness Directives, rebuilt daily. An AD listed for a model is one to read; whether it applies to one aircraft depends on its serial number, equipment and records.