# N78PR: Calvert HP-18, registration cancelled 1990-10-19

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 19, 1990
- Status when cancelled: N-number assigned, not yet registered
- Airframe: [Calvert HP-18](https://openairdocs.org/model/calvert-hp-18) (registry code 05647X6)
- Serial number: 1845
- Type of aircraft: Glider
- Mode S code: AA8F82
- Owner type: Co-owned
- The mark today: https://openairdocs.org/aircraft/N78PR
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=78PR
- Page: https://openairdocs.org/deregistered/N78PR-1990-10-19

From the FAA registry file of November 3, 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 Calvert HP-18: https://openairdocs.org/model/calvert-hp-18.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 NYC90DGT01](https://openairdocs.org/ntsb/NYC90DGT01), Aug 15, 1990: Calvart HP-18 (N78PR), York Springs, PA, substantial damage. Probable cause: THE GLIDER PILOT'S MISJUDGED APPROACH TO LANDING, WHICH RESULTED IN THE GLIDER OVERSHOOTING THE LANDING FIELD AND IMPACTING TREES.

## 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 19900815033069A](https://openairdocs.org/incident/19900815033069A), Aug 15, 1990: Amtr HP18 (N78PR), York Springs, PA, Substantial damage. Encountered downdrafts returning to gliderport. Overshot off airstrip landing in open field and crashed in trees.

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