# N18CS: Grumman G-21A, registration cancelled 1976-06-16

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 16, 1976
- 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-59
- Type of aircraft: Fixed wing multi engine
- Certificate issued: February 8, 1974
- Mode S code: A13E96
- Owner when cancelled: [Catalina Seaplanes Inc](https://openairdocs.org/faa-owner/CATALINA%20SEAPLANES%20INC)
- Location: [San Pedro, CA](https://openairdocs.org/faa-place/CA/San%20Pedro)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N18CS
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=18CS
- Page: https://openairdocs.org/deregistered/N18CS-1976-06-16

From the FAA registry file of October 29, 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 LAX76AL068](https://openairdocs.org/ntsb/LAX76AL068), Apr 10, 1976: Grumman G-21A (N18CS), Avalon, CA, destroyed

## FAA accident and incident reports (1)

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 19760410010669A](https://openairdocs.org/incident/19760410010669A), Apr 10, 1976: Gruman G21A (N18CS), Avalon, CA, Destroyed. L eng lost pwr. Didnt feath prop. Un maintain alt, lnd cross swell.l float sep. Acft sank in ocean.

## Other aircraft with N18CS

- [Registered now](https://openairdocs.org/aircraft/N18CS): Shapler Charles E FISHER CELEBRITY, S/N AV1055, built 1997

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.