# N99Z: 1971 Gehrlein GP-1

- Status: Valid registration
- Airframe: [Gehrlein GP-1](https://openairdocs.org/model/gehrlein-gp-1) (registry code 05601R4, 1 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Serial number: 2
- Year built: 1971
- Type: Glider
- Engine type: None
- Airworthiness: Experimental, amateur built
- Airworthiness date: August 2, 1979
- Certificate issued: March 26, 1999
- Expires: January 31, 2030
- Mode S code: ADD289
- Registered owner: [Gehrlein Rory John](https://openairdocs.org/faa-owner/GEHRLEIN%20RORY%20JOHN)
- Location: [Waterford, PA](https://openairdocs.org/faa-place/PA/Waterford)
- Owner type: Individual
- Owner's area on the map: 41.9585° N, 79.9836° W: Placed by OpenAirDocs at the center of ZIP code 16441, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=99Z
- Page: https://openairdocs.org/aircraft/N99Z

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Gehrlein GP-1)

None in force.

### Matched by engine (NONE)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N99Z.

## FAA accident and incident reports

None matched to N99Z.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Earlier aircraft with N99Z

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N99Z before.

- [Cancelled 1971-03-01](https://openairdocs.org/deregistered/N99Z-1971-03-01): Heath Parasol SUPER PARASOL, S/N 101. Owner: [Falejczyk Francis John](https://openairdocs.org/faa-owner/FALEJCZYK%20FRANCIS%20JOHN), [Jamestown, NY](https://openairdocs.org/faa-place/NY/Jamestown)

## Related

- Other Gehrlein GP-1 aircraft: https://openairdocs.org/model/gehrlein-gp-1/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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