# N1666R: 2008 Holtz Rodney R CHALLENGER II - Status: Valid registration - Airframe: [Holtz Rodney R CHALLENGER II](https://openairdocs.org/model/holtz-rodney-r-challenger-ii) (registry code 059041F, 2 seats) - Engine: [Rotax 503 DCDI](https://openairdocs.org/engine/rotax-503-dcdi) (registry code 55566) - Serial number: CH2-0899-1897 - Year built: 2008 - Type: Fixed wing single engine - Engine type: 2 cycle - Airworthiness: Experimental, amateur built - Airworthiness date: November 7, 2008 - Certificate issued: October 30, 2024 - Expires: October 31, 2031 - Mode S code: A10B32 - Registered owner: [Clow Dana R](https://openairdocs.org/faa-owner/CLOW%20DANA%20R) - Location: [Hillsborough, NH](https://openairdocs.org/faa-place/NH/Hillsborough) - Owner type: Individual - Owner's area on the map: 43.1199° N, 71.9219° W: Placed by OpenAirDocs at the center of ZIP code 03244, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=1666R - Page: https://openairdocs.org/aircraft/N1666R 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 (Holtz Rodney R CHALLENGER II) None in force. ### Matched by engine (Rotax 503 DCDI) None in force. ## Information bulletins (advisory) None matched. ## NTSB investigations (2) 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 ERA25LA063](https://openairdocs.org/ntsb/ERA25LA063), Nov 20, 2024: Holtz Rodney R Challenger II (N1666R), Concord, NH, substantial damage. Probable cause: The pilot’s failure to maintain directional control and eventual stall/mush of the airplane while trying to secure an open door in flight. - [NTSB CEN18CA291](https://openairdocs.org/ntsb/CEN18CA291), Jul 23, 2018: Quad City Challenger (N1666R), Oshkosh, WI, substantial damage. Probable cause: The pilot’s failure to maintain adequate airspeed during the base to final turn and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall. ## NTSB investigations on N1666R not matched to an aircraft (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 FTW04LA213](https://openairdocs.org/ntsb/FTW04LA213), Aug 12, 2004: Cessna A185F (N1666R), New Braunfels, TX, substantial damage. Probable cause: The pilot's inadequate compensation for wind and his failure to maintain directional control. A contributing factor was the crosswind. ## FAA accident and incident reports (2) 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 20241120019119A](https://openairdocs.org/incident/20241120019119A), Nov 20, 2024: Holtz Rodney R CHALLENGER II (N1666R), Concord, NH, Substantial damage. Pilot stated that after takeoff he performed a left-hand turn at approximately 1,000 ft above ground level. During the turn the right-hand main entrance door… - [Accident 20180723017829A](https://openairdocs.org/incident/20180723017829A), Jul 23, 2018: Holtz Rodney R CHALLENGER II (N1666R), Oshkosh, WI, Substantial damage. Pilot was on landing approach and made wide turn to runway. Aircraft stalled hit the ground and spun until hitting a fence. ## Reports on N1666R not matched to an aircraft (1) They name N1666R, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [Accident 20040812019199A](https://openairdocs.org/incident/20040812019199A), Aug 12, 2004: Cessna A185F (N1666R), New Braunfels, TX, Substantial damage. (-23) On landing, the student encountered crosswinds. The aircraft skidded to the left side of the runway on the outbd. Side of the right tire before the right… ## 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 Holtz Rodney R CHALLENGER II aircraft: https://openairdocs.org/model/holtz-rodney-r-challenger-ii/aircraft.md - The Rotax 503 DCDI engine: https://openairdocs.org/engine/rotax-503-dcdi.md --- 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.