2004
Year
C-GCSO — 2004 Diamond DA 42
C-GCSO is a 2004 Diamond DA 42 (2 engines) based in CYHD Dryden, Ontario, listed on the Transport Canada Civil Aircraft Register (serial 42.AC105).
Piston twin
Category
Ontario
Based
18
On CA register
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The aircraft
Year built2004 · 22 years old
Airframe typeWhether Transport Canada classes it as an aeroplane, a helicopter, a glider, a balloon or a gyroplane.Aeroplane
Engine typeHow the engine makes power. Piston engines run on avgas like a car engine; turboprops and jets burn turbine fuel, cost far more to overhaul, and are usually reserved for bigger or faster aircraft.Piston
Engines2
Max take-off weightMaximum take-off weight: the heaviest the aircraft may legally be when it starts its take-off roll, including fuel, people and baggage. It's the number that decides what licence and ratings you need, and what it costs to park.1,785 kg · 3,935 lb
Where it's based
BasedThe city or airport Transport Canada holds as the aircraft's base. Where the field holds a four-letter code like CYXE, that's the airport's ICAO identifier.CYHD Dryden, Ontario
Transport Canada officeThe Transport Canada regional office that administers this registration. It follows the owner's address, so it isn't always the nearest office to where the aircraft actually sits.Toronto
Identity
Serial numberThe manufacturer's own number for this individual airframe, stamped on a plate. Unlike the registration, it never changes — it identifies the aircraft across every country it's ever been registered in.42.AC105
ManufacturerThe full legal name of the company that built it, which is often not the name on the tail. A Cessna 172 built in 2022 was made by Textron Aviation.Diamond Aircraft Industries INC.
Built inWhere the aircraft was manufactured. Most of Canada's fleet was built in the United States.Austria
ICAO 24-bit addressA unique 24-bit number your transponder broadcasts with every Mode S and ADS-B message — flight trackers key on it rather than the tail number. Canada's block runs C00000 to C3FFFF, which is why Canadian aircraft nearly all start C0 to C3. Transport Canada assigns it against the registration, so it changes if the aircraft is re-registered.C04BD3
Registration
Registration typePrivate, Commercial or State. Commercial means the registration permits use for hire or reward — charter, flight training, aerial work. It describes the registration, not who owns the aircraft.Commercial
Basis of registrationThe rule the aircraft is registered under. Most are registered against a type certificate, meaning they're a factory design approved by the regulator; amateur-built and ultralight aircraft come in under their own standards.CAR Standard 507.02, 507.03 - Type Certificate
Type certificateThe approval number for the aircraft's design, issued to the manufacturer. Every aircraft built to that approved design shares it, so it's a good way to confirm exactly which variant you're looking at.A247
Registered sinceWhen the current registration took effect. A recent date usually means the aircraft changed hands or was re-registered — it is not the date it was built.5 March 2020
Imported to CanadaWhen the aircraft was first brought onto the Canadian register from abroad. Only recorded for imported aircraft, which is about a third of the fleet.21 January 2020
Where C-GCSO is, and how to track it
C-GCSO transmits ADS-B under the 24-bit address C04BD3. Trackers key on that address rather than the tail number, so it finds the aircraft even on flights flown under a different callsign. Transport Canada assigns the address against the registration, so it changes if the aircraft is re-registered.
Most private aircraft are on the ground most of the time — if a tracker shows nothing, it is very likely parked rather than missing.
How rare is C-GCSO?
The Diamond DA 42 is rare in Canada — there are 18 registered on the Transport Canada Civil Aircraft Register — see every one.
- 9 of the 18 are in Ontario.
- Median year built for the type: 2007 — C-GCSO is older than half of them.
- One of 234 Diamond aircraft on the Canadian register, across every model.
- One of 1,496 aircraft in Canada's piston twin category, 415 of them in Ontario.
Not for sale right now
C-GCSO is not listed on MarketPlane. If it ever is, we can tell you — one email, then nothing. No account needed.
Reported occurrences
Transport Canada has 7 reports on file mentioning C-GCSO (2008–2020). One records damage. The other 6 are filed with no damage recorded — that category covers bird strikes, air-traffic events and equipment reports, which are logged whether or not anything was harmed.
Substantial · Mar 4, 2010
Accident — landing phase — KINCARDINE ON (CYKM) · TSB file A10O0035
Transport Canada describes CADORS entries as preliminary and unsubstantiated, and subject to change. Reports reach the system when somebody files one, so an empty or quiet record is not proof an aircraft has never been damaged — it is not a title search, an airworthiness-directive check or a substitute for a pre-purchase inspection or a look at the logbooks. 2 entries have a Transportation Safety Board file number; those are investigated separately and the TSB publishes its own reports. Source: Transport Canada, Civil Aviation Daily Occurrence Reporting System (CADORS), under the Open Government Licence – Canada.
Other Diamond DA 42 in Canada
C-GVXJ 2010 · C-FLRY 2008 · C-GACB 2008 · C-GPGC 2008 · C-FGTV 2007 · C-FMBC 2007 · all Diamond DA 42 →
Own this aircraft?
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Canadian Civil Aircraft Register, current to September 17, 2026. Aircraft data reproduced and distributed with the permission of the Government of Canada. MarketPlane.ca is not affiliated with Transport Canada.