# N68PR: 1999 AS+ AC 4

- Status: Valid registration
- Airframe: [AS+ AC 4](https://openairdocs.org/model/as-plus-ac-4) (registry code 05628R1, 1 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 044
- Year built: 1999
- Type: Glider
- Engine type: None
- Airworthiness: Experimental, exhibition
- Airworthiness date: July 18, 2008
- Certificate issued: August 30, 2016
- Expires: August 31, 2029
- Mode S code: A90233
- Registered owner: [Dyer Robert A](https://openairdocs.org/faa-owner/DYER%20ROBERT%20A)
- Location: [Papillion, NE](https://openairdocs.org/faa-place/NE/Papillion)
- Owner type: Individual
- Owner's area on the map: 41.1214° N, 96.0536° W: Placed by OpenAirDocs at the center of ZIP code 68046, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=68PR
- Page: https://openairdocs.org/aircraft/N68PR

From the FAA registry file of October 22, 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 (AS+ AC 4)

None in force.

### Matched by engine (Amateur-built UNKNOWN ENG)

None in force.

## Information bulletins (advisory)

None matched.

## 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 CHI01LA332](https://openairdocs.org/ntsb/CHI01LA332), Sep 29, 2001: AviaStrottel AC 4C (N68PR), Marshfield, MI, minor damage. Probable cause: The pilot's decision to release from the tow plane during the takeoff. A factor associated with the accident was the pilot's vision was restricted by his hat during the takeoff.

## 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 20010929028599A](https://openairdocs.org/incident/20010929028599A), Sep 29, 2001: N68PR, Marshall, MI, No damage. (-23) On September 29, 2001, at 1425 EST., an as+ltd AC4 glider, N68PR collided with the ground during a takeoff attempt from brooks field, Marshall, Michigan.…

## 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.

## Related

- Other AS+ AC 4 aircraft: https://openairdocs.org/model/as-plus-ac-4/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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