N421QB
Built 1952 · registered US
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Flight activity
(6 tracking legs recorded)Live tracking paused — activity data through 24 Aug 2026. Windows below are measured to that date.
- 30 days to 24 Aug 2026
- 6
- 90 days to 24 Aug 2026
- 6
- Last seen
- 10 Aug 2026
- Tracked since
- 7 Aug 2026
Frequent routes: PAED → PAED (2)
- … → PAED10 Aug 2026 · 1h 42m
- … → PAED9 Aug 2026 · 6h 05m
- PAED → PAED9 Aug 2026 · 17h 01m
- PAED → PAED8 Aug 2026 · 3h 55m
- … → PAED8 Aug 2026 · 18h 04m
- … → PAED7 Aug 2026 · 0h 10m
From ADS-B observations collected since May 2026. Coverage depends on ground-receiver density; gaps do not mean the aircraft did not fly.
Common. More common than 67% of the aircraft models we track.
Other HARVARD MK IV airframes by tail number — same model as N421QB.
- N587CB1991
- N565JH1954
- N884TC1953
- VH-USR1953
- N304GS1953
- N452CA1952
- N5101W1952
- N190861952
- N551LD1952
- N14651952
- N14661952
- N711SS1952
- N60DJ1952
- N459JP1952
- N2WS1952
- N441101952
Registration history
(1)- N421QBUSACTIVEAMERICAN AIRPOWER HERITAGE FLYING MUSEUM2007 – present
Owner names are published by the issuing civil registry (FAA / CCARCS / CASA / ANAC / NZ CAA). Owner addresses present in the source are not republished here. Registered owner? Request removal
What type of aircraft is N421QB?
N421QB is a Canadian Car & Foundry HARVARD MK IV, built in 1952.
Where is N421QB registered?
N421QB is currently registered in United States (US).
What is the MSN of N421QB?
The manufacturer serial number (MSN) of N421QB is CCF-4-212.
What is the ICAO24 (Mode S) code for N421QB?
N421QB's ICAO24 hex code is A500B6.
Is N421QB still airworthy?
N421QB's current registry status is Active.