# N4772C: Grumman G-21A, registration cancelled 1977-01-14

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: January 14, 1977
- 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: B-131
- Type of aircraft: Fixed wing multi engine
- Certificate issued: January 10, 1973
- Mode S code: A5DDBC
- Owner when cancelled: [Antilles Air Boats Inc](https://openairdocs.org/faa-owner/ANTILLES%20AIR%20BOATS%20INC)
- Location: [St Thomas, VI](https://openairdocs.org/faa-place/VI/St%20Thomas)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N4772C
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4772C
- Page: https://openairdocs.org/deregistered/N4772C-1977-01-14

From the FAA registry file of November 7, 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 (3)

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 MIA76AM066](https://openairdocs.org/ntsb/MIA76AM066), Feb 21, 1976: Grumman G-21A (N4772C), St Croix, VI, destroyed, 5 fatal
- [NTSB MIA74AM031](https://openairdocs.org/ntsb/MIA74AM031), Oct 13, 1973: Grumman G-21A (N4772C), Christiansted, PR, substantial damage
- [NTSB ANC71FAD05](https://openairdocs.org/ntsb/ANC71FAD05), Nov 26, 1970: Grumman G-21A (N4772C), Wrangell, AK, substantial damage

## FAA accident and incident reports (2)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 19760221036039A](https://openairdocs.org/incident/19760221036039A), Feb 21, 1976: Gruman G21A (N4772C), St Croix, U.S. Virgin Islands, Destroyed, 5 fatal. Unsched feather rt prop reason undetermined. Acft submerged and not recovered. Amphibious.
- [Accident 19731013033339A](https://openairdocs.org/incident/19731013033339A), Oct 13, 1973: Gruman G21A (N4772C), Christiansted, Puerto Rico, Substantial damage. Hit marker buoy drg water tkof. Had porpoised on tkof run.

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