# N3997Y: 1964 Cessna 210D, registration cancelled 2020-05-29

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 29, 2020
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Cessna 210D](https://openairdocs.org/model/cessna-210d) (registry code 2073414)
- Engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032)
- Data sheets: [TCDS 3A21](https://openairdocs.org/tcds/3A21), [TCDS E5CE](https://openairdocs.org/tcds/E5CE) (OpenAirDocs)
- Serial number: 21058497
- Year built: 1964
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Certificate issued: February 6, 2017
- Last registry action: February 6, 2017
- Mode S code: A4A79C
- Owner when cancelled: [Patterman Emil S](https://openairdocs.org/faa-owner/PATTERMAN%20EMIL%20S)
- Location: [El Cajon, CA](https://openairdocs.org/faa-place/CA/El%20Cajon)
- Owner type: Individual
- Owner's area on the map: 32.7956° N, 116.9698° W: Placed by OpenAirDocs at the center of ZIP code 92020, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N3997Y
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=3997Y
- Page: https://openairdocs.org/deregistered/N3997Y-2020-05-29

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 Cessna 210D: https://openairdocs.org/model/cessna-210d.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 WPR19LA166](https://openairdocs.org/ntsb/WPR19LA166), Jun 10, 2019: Cessna 210 (N3997Y), Romona, CA, substantial damage. Probable cause: A total loss of engine power due to oil starvation as a result of the failure of an oil filter adapter fiber gasket.

## 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 20190610006389A](https://openairdocs.org/incident/20190610006389A), Jun 10, 2019: Cessna 210D (N3997Y), Ramona, CA, Substantial damage. Shortly after take off from gillespie field (ksee) the aircraft engine started to run rough. With the engine not performing normally the pilot decided to land…

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