1974
Year
C-GRKZ — 1974 Piper PA-28-140
C-GRKZ is a 1974 Piper PA-28-140 based in London, Ontario, listed on the Transport Canada Civil Aircraft Register (serial 28-7425072).
Piston single
Category
Ontario
Based
450
Of this type in Canada
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Piper PA-28 (Cherokee, Warrior, Archer) in Canada
- 8 listed on MarketPlane now, from $19,500 to $180,000.
- Most ask between $79,000 and $125,000. That's from 15 ads we've seen across Canada since July 2026, which ranged from $22,000 to $180,000.
The aircraft
Year built1974 · 52 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.975 kg · 2,150 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.London, 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.Dorval
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.28-7425072
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.Piper Aircraft Corporation
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.C072AA
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.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.2A13
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.24 July 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.10 May 2012
Where C-GRKZ is, and how to track it
C-GRKZ transmits ADS-B under the 24-bit address C072AA. 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-GRKZ on the Transport Canada register →
How rare is C-GRKZ?
The Piper PA-28-140 is common in Canada. There are 450 on the register. It belongs to the Piper PA-28 (Cherokee, Warrior, Archer) family, which has 1,155 in Canada.
- 129 of the 450 are in Ontario.
- It's the 3rd most common type in Canada.
- Half of them were built before 1969. C-GRKZ is newer than most.
- Canada has 3,374 Piper aircraft of all models.
- Canada has 20,925 piston single aircraft, 5,535 of them in Ontario.
- 109 aircraft are based in London. See them all →
Not for sale right now
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Other Piper PA-28-140 in Canada
C-FGLA 1977 · C-FPPL 1977 · C-GBYQ 1977 · C-GBZY 1977 · C-GEDO 1977 · C-GKNC 1977 · all Piper PA-28-140 →
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.