# N4221A: Grumman G-21A, registration cancelled 1964-09-16

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: September 16, 1964
- Status when cancelled: Valid registration
- Airframe: [Grumman G-21A](https://openairdocs.org/model/grumman-g-21a) (registry code 3951204)
- Data sheets: [TCDS TC 654](https://openairdocs.org/tcds/TC%20654) (OpenAirDocs)
- Serial number: 1030
- Type of aircraft: Fixed wing multi engine
- Certificate issued: January 16, 1961
- Mode S code: A50589
- Owner when cancelled: [Catalina Channel Airlines Inc](https://openairdocs.org/faa-owner/CATALINA%20CHANNEL%20AIRLINES%20INC)
- Location: [Long Beach, CA](https://openairdocs.org/faa-place/CA/Long%20Beach)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N4221A
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4221A
- Page: https://openairdocs.org/deregistered/N4221A-1964-09-16

From the FAA registry file of November 5, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Grumman G-21A: https://openairdocs.org/model/grumman-g-21a.md

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB UNK64X2803](https://openairdocs.org/ntsb/UNK64X2803), Jul 13, 1964: Grumman G21A (N4221A), Avalon, CA, destroyed

## Other aircraft with N4221A

- [Registered now](https://openairdocs.org/aircraft/N4221A): Ratte James CHALLENGER II, S/N CH201910612, built 1991
- [Cancelled (date not recorded)](https://openairdocs.org/deregistered/N4221A-undated): Cessna 310R, S/N 310R1378. N-number assigned, not yet registered

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