# HPH GLASFLUGEL 304CZ - Type: Aircraft model (FAA registry) - Registry code: 05606KP - Manufacturer (registry): HPH LTD - Model: GLASFLUGEL 304CZ - Aircraft type: Glider - Category: Glider - Engines: None - Seats: 2 - Weight class: Up to 12,499 lb - Certification: Type certificated - Data sheet: [TCDS G12CE](https://openairdocs.org/tcds/G12CE) (OpenAirDocs) - Holder: HPH s.r.o. - Registered aircraft: 16 - Page: https://openairdocs.org/model/hph-glasflugel-304cz Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2019-04-01](https://openairdocs.org/ad/2019-04-01): Equipment/ Furnishing · HPH s.r.o. Glasflugel 304 C, Glasflugel 304 CZ and Glasflugel 304 CZ-17. Effective Apr 23, 2019 - [AD 2012-16-03](https://openairdocs.org/ad/2012-16-03): Flight controls · HPH s.r.o. Glasflugel 304 C, Glasflugel 304 CZ and Glasflugel 304 CZ-17. Effective Sep 12, 2012 - [AD 2004-09-03](https://openairdocs.org/ad/2004-09-03): Airbrake Handle Attachment Rivet Material · HPH s.r.o. Glasflugel 304 C, Glasflugel 304 CZ and Glasflugel 304 CZ-17. Effective Jun 11, 2004 ## Registered aircraft (16) - [N2QR](https://openairdocs.org/aircraft/N2QR): [Holder Robert W](https://openairdocs.org/faa-owner/HOLDER%20ROBERT%20W), [Pittsfield, PA](https://openairdocs.org/faa-place/PA/Pittsfield), built 1999, S/N 31 - [N304AM](https://openairdocs.org/aircraft/N304AM): [Willamette Valley Soaring Club Inc](https://openairdocs.org/faa-owner/WILLAMETTE%20VALLEY%20SOARING%20CLUB%20INC), [Cornelius, OR](https://openairdocs.org/faa-place/OR/Cornelius), S/N 22 - [N304AZ](https://openairdocs.org/aircraft/N304AZ): [Vihlen Ryan S](https://openairdocs.org/faa-owner/VIHLEN%20RYAN%20S), [Smyrna, GA](https://openairdocs.org/faa-place/GA/Smyrna), built 1999, S/N 14 - [N304BL](https://openairdocs.org/aircraft/N304BL): [Rinell Eric S](https://openairdocs.org/faa-owner/RINELL%20ERIC%20S), [San Luis Obispo, CA](https://openairdocs.org/faa-place/CA/San%20Luis%20Obispo), built 2000, S/N 17 - [N304BS](https://openairdocs.org/aircraft/N304BS): [Bates Matthew T](https://openairdocs.org/faa-owner/BATES%20MATTHEW%20T), [Springfield, VA](https://openairdocs.org/faa-place/VA/Springfield), built 2000, S/N 27 - [N304CZ](https://openairdocs.org/aircraft/N304CZ): [Looft Fred J](https://openairdocs.org/faa-owner/LOOFT%20FRED%20J), [Leicester, MA](https://openairdocs.org/faa-place/MA/Leicester), built 1998, S/N 3 - [N304DD](https://openairdocs.org/aircraft/N304DD): [Behm Christopher B](https://openairdocs.org/faa-owner/BEHM%20CHRISTOPHER%20B), [Harbor City, CA](https://openairdocs.org/faa-place/CA/Harbor%20City), built 1999, S/N 7 - [N304GF](https://openairdocs.org/aircraft/N304GF): [Rusinowski Steven P](https://openairdocs.org/faa-owner/RUSINOWSKI%20STEVEN%20P), [Royal Oak, MI](https://openairdocs.org/faa-place/MI/Royal%20Oak), built 2000, S/N 20 - [N304HV](https://openairdocs.org/aircraft/N304HV): [Rizy David J](https://openairdocs.org/faa-owner/RIZY%20DAVID%20J), [Arlington, TX](https://openairdocs.org/faa-place/TX/Arlington), built 1999, S/N 11 - [N304JD](https://openairdocs.org/aircraft/N304JD): [Lysy David G](https://openairdocs.org/faa-owner/LYSY%20DAVID%20G), [Lyme, NH](https://openairdocs.org/faa-place/NH/Lyme), built 2000, S/N 30 - [N304NM](https://openairdocs.org/aircraft/N304NM): [Bickers Donald Sims](https://openairdocs.org/faa-owner/BICKERS%20DONALD%20SIMS), [Knoxville, TN](https://openairdocs.org/faa-place/TN/Knoxville), built 2000, S/N 24 - [N304RS](https://openairdocs.org/aircraft/N304RS): [Stoyanov Nikolay S](https://openairdocs.org/faa-owner/STOYANOV%20NIKOLAY%20S), [Jersey City, NJ](https://openairdocs.org/faa-place/NJ/Jersey%20City), built 1999, S/N 15 - [N304TM](https://openairdocs.org/aircraft/N304TM): [Airtravel LLC](https://openairdocs.org/faa-owner/AIRTRAVEL%20LLC), [Reno, NV](https://openairdocs.org/faa-place/NV/Reno), built 2000, S/N 19 - [N342EZ](https://openairdocs.org/aircraft/N342EZ): [Mcgowin Timothy P](https://openairdocs.org/faa-owner/MCGOWIN%20TIMOTHY%20P), [Auburn, AL](https://openairdocs.org/faa-place/AL/Auburn), built 2001, S/N 40-17 - [N519EC](https://openairdocs.org/aircraft/N519EC): [South George J](https://openairdocs.org/faa-owner/SOUTH%20GEORGE%20J), [Mantua, OH](https://openairdocs.org/faa-place/OH/Mantua), S/N 8 - [N839CZ](https://openairdocs.org/aircraft/N839CZ): [Strack Taylor W](https://openairdocs.org/faa-owner/STRACK%20TAYLOR%20W), [West Hartford, CT](https://openairdocs.org/faa-place/CT/West%20Hartford), built 2001, S/N 37-17 ## 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 ERA26LA311](https://openairdocs.org/ntsb/ERA26LA311), Aug 21, 2026: HPH Glasflugel 304CZ (N304BS), Xenia, OH, substantial damage. Probable cause: The glider’s encounter with atmospheric conditions where lift was not sufficient to maintain flight. ## 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 20260821011809A](https://openairdocs.org/incident/20260821011809A), Aug 21, 2026: Hph Ltd GLASFLUGEL 304CZ (N304BS), Jamestown, OH, Substantial damage. Departed 20H9 at 13:35 with the intention of landing back at 20H9. Gates opened at 15:35. Made first turn point and started toward second turn point. The day… ## STCs that may be installed (OpenAirDocs) (1) Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [STC SA4005NM](https://openairdocs.org/stc/SA4005NM): Precise Flight Inc. Pulselite Control System. Precise Flight Inc --- 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.