# N3850H: Engineering & Research 415-D, registration cancelled 1974-04-23

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: April 23, 1974
- Status when cancelled: Valid registration
- Airframe: [Engineering & Research 415-D](https://openairdocs.org/model/engineering-research-415-d) (registry code 0420306)
- Data sheets: [TCDS A-787](https://openairdocs.org/tcds/A-787) (OpenAirDocs)
- Serial number: 4551
- Type of aircraft: Fixed wing single engine
- Certificate issued: September 28, 1973
- Mode S code: A4703D
- Owner when cancelled: [Schaefer Kathleen G](https://openairdocs.org/faa-owner/SCHAEFER%20KATHLEEN%20G)
- Location: [York, PA](https://openairdocs.org/faa-place/PA/York)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N3850H
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=3850H
- Page: https://openairdocs.org/deregistered/N3850H-1974-04-23

From the FAA registry file of November 12, 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 Engineering & Research 415-D: https://openairdocs.org/model/engineering-research-415-d.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 NYC74DGT11](https://openairdocs.org/ntsb/NYC74DGT11), Sep 30, 1973: Erco 415-D (N3850H), Hershey, PA, substantial damage

## 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 19730930029829A](https://openairdocs.org/incident/19730930029829A), Sep 30, 1973: Univar 415D (N3850H), Hershey, PA, Substantial damage. Instructor established high sink rate while demonstrating landing to student.

## Other aircraft with N3850H

- [Registered now](https://openairdocs.org/aircraft/N3850H): Interplane SKYBOY, S/N 17/2001

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