2003
Year
C-GRNK — 2003 Maule M-7-235C
C-GRNK is a 2003 Maule M-7-235C based in Oakwood (COK3), Ontario, listed on the Transport Canada Civil Aircraft Register (serial 25086 C).
Piston single
Category
Ontario
Based
8
Of this type in Canada
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The aircraft
Year built2003 · 23 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
Engines1
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.1,134 kg · 2,500 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.Oakwood (COK3), 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.25086 C
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.Maule Air, INC.
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.C072E9
Registration
Registration typePrivate, Commercial or State. Commercial means the registration permits use for hire or reward, like charter, flight training or aerial work. It describes the registration, not who owns the aircraft.Private
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.A200
Registered sinceWhen the current registration took effect. A recent date usually means the aircraft changed hands or was re-registered. It isn't the year it was built.8 October 2025
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.30 April 2024
Where C-GRNK is, and how to track it
C-GRNK transmits ADS-B under the 24-bit address C072E9. 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 spend most of their time on the ground. If a tracker shows nothing, it's probably just parked.
The owner of record and the certificate history are on Transport Canada's own lookup: see C-GRNK on the Transport Canada register →
How rare is C-GRNK?
The Maule M-7-235C is rare in Canada. There are 8 on the register. It belongs to the Maule family, which has 153 in Canada.
- 2 of the 8 are in Ontario.
- Half of them were built before 2003. C-GRNK is right in the middle.
- Canada has 153 Maule aircraft of all models.
- Canada has 20,925 piston single aircraft, 5,535 of them in Ontario.
Not for sale right now
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Reported occurrences
Transport Canada has 5 reports on file mentioning C-GRNK (1994–2007). 2 record damage. The other 3 are filed with no damage recorded. Those are things like bird strikes, air traffic events and equipment reports, which get logged whether or not anything was harmed.
Substantial · Jul 11, 2007
Accident — climb phase — Matheson Island (CJT2) · TSB file A07C0119
Minor · Nov 16, 2005
Incident — landing phase — Berens River · TSB file A05C0208
Transport Canada describes CADORS entries as preliminary and unsubstantiated, and subject to change. Reports reach the system when somebody files one, so a clean record doesn't prove an aircraft has never been damaged. It doesn't replace a title search, an AD check, a pre-purchase inspection or 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 Maule M-7-235C in Canada
C-FSRA 2005 · C-GVCC 2005 · C-FNIK 2003 · C-FIIT 2000 · C-FCDM 1999 · C-GMTV 1998 · all Maule M-7-235C →
Own this aircraft?
You can list C-GRNK here for free. We already have the year, make, model, serial and engine from the register, so most of the form is filled in for you. Buyers contact you directly and we take no commission.
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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.