1942
Year
C-GDDJ — 1942 Grumman G-21A
C-GDDJ is a 1942 Grumman G-21A (2 engines) based in Port Hardy, British Columbia, listed on the Transport Canada Civil Aircraft Register (serial 1184).
Piston twin
Category
British Columbia
Based
4
On CA register
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The aircraft
Year built1942 · 84 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.3,631 kg · 8,004 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.Port Hardy, British Columbia
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.Vancouver
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.1184
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.Grumman Aircraft Engineering Corp.
Built inWhere the aircraft was manufactured. Most of Canada's fleet was built in the United States.U.S.A.
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.C04CEC
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
AirworthinessThe standard certificate: the aircraft conforms to its approved design and is maintained by a licensed engineer. No restrictions beyond the type's own, and it's what buyers and lenders expect to see.Certificate of Airworthiness
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.TC654
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.8 August 2016
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.22 May 1998
Where C-GDDJ is, and how to track it
C-GDDJ transmits ADS-B under the 24-bit address C04CEC. 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-GDDJ?
The Grumman G-21A is very rare in Canada — there are 4 registered on the Transport Canada Civil Aircraft Register — see every one.
- All 4 are in British Columbia.
- Median year built in Canada's piston twin category: 1977 — C-GDDJ is older than half of that fleet.
- One of 30 Grumman aircraft on the Canadian register, across every model.
- One of 1,496 aircraft in Canada's piston twin category, 191 of them in British Columbia.
- 8 aircraft are based in Port Hardy — see every one →
Not for sale right now
C-GDDJ 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 18 reports on file mentioning C-GDDJ (2007–2023). 5 record damage. The other 13 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 · Dec 18, 2023
Accident — climb phase — 0.50NM SE BELLA BELLA (CAMPBELL ISLAND) BC (CBBC) · TSB file A23P0153
Substantial · Jul 31, 2022
Accident — takeoff phase — 17NM SW RIVERS INLET BC (Water) (CAU8) · TSB file A22P0066
Minor · Jun 30, 2022
Incident — roll out phase — 60NM N PORT HARDY BC (CYZT) · TSB file A22P0054
Substantial · Apr 5, 2016
Accident — landing phase — 5NM SSW OCEAN FALLS BC (Water) (CAH2) · TSB file A16P0058
Minor · Apr 17, 2008
Incident — cruise phase — Pendrell Sound · TSB file A08P0093
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. 8 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 Grumman G-21A in Canada
C-FIOL 1948 · C-FHUZ 1944 · C-FUAZ 1940 · all Grumman G-21A →
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.