# N9821V: 1966 Cessna A188, registration cancelled 2017-02-14

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 14, 2017
- Status when cancelled: Revoked, canceled
- Airframe: [Cessna A188](https://openairdocs.org/model/cessna-a188) (registry code 2073004)
- Engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032)
- Data sheets: [TCDS A9CE](https://openairdocs.org/tcds/A9CE), [TCDS E5CE](https://openairdocs.org/tcds/E5CE) (OpenAirDocs)
- Serial number: 188-0071
- Year built: 1966
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Certificate issued: April 14, 1969
- Last registry action: January 14, 1977
- Mode S code: ADB521
- Owner when cancelled: [Blain Gerhart H](https://openairdocs.org/faa-owner/BLAIN%20GERHART%20H)
- Location: [Billings, MT](https://openairdocs.org/faa-place/MT/Billings)
- Owner type: Individual
- Owner's area on the map: 45.5641° N, 108.3336° W: Placed by OpenAirDocs at the center of ZIP code 59101, within about 14 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N9821V
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=9821V
- Page: https://openairdocs.org/deregistered/N9821V-2017-02-14

From the FAA registry file of November 4, 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 Cessna A188: https://openairdocs.org/model/cessna-a188.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 SEA71FDA18](https://openairdocs.org/ntsb/SEA71FDA18), Apr 17, 1971: Cessna A188 (N9821V), Joliet, MT, substantial damage

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