# N33MR: 1975 Cessna 177RG, registration cancelled 2004-03-22

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 22, 2004
- Status when cancelled: Triennial form not returned
- Airframe: [Cessna 177RG](https://openairdocs.org/model/cessna-177rg) (registry code 2073709)
- Engine: [Lycoming IO-360-A1B6D](https://openairdocs.org/engine/lycoming-io-360-a1b6d) (registry code 41593)
- Data sheets: [TCDS A20CE](https://openairdocs.org/tcds/A20CE), [TCDS 1E10](https://openairdocs.org/tcds/1E10) (OpenAirDocs)
- Serial number: 177RG0772
- Year built: 1975
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: August 19, 1975
- Certificate issued: March 16, 1995
- Last registry action: March 16, 2004
- Mode S code: A39499
- Owner when cancelled: [Tharp Eugene](https://openairdocs.org/faa-owner/THARP%20EUGENE)
- Location: [Highlnds Rnch, CO](https://openairdocs.org/faa-place/CO/Highlnds%20Rnch)
- Owner type: Individual
- Owner's area on the map: 39.5424° N, 104.9641° W: Placed by OpenAirDocs at the center of ZIP code 80126, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N33MR
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=33MR
- Page: https://openairdocs.org/deregistered/N33MR-2004-03-22

From the FAA registry file of October 29, 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 Cessna 177RG: https://openairdocs.org/model/cessna-177rg.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 FTW95FA111](https://openairdocs.org/ntsb/FTW95FA111), Feb 9, 1995: Cessna 177RG (N33MR), Larkspur, CO, destroyed, 1 fatal. Probable cause: THE PILOT'S DECISION TO CONTINUE VFR FLIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS AFTER BEING ADVISED THAT VFR FLIGHT WAS NOT RECOMMENDED. THE WEATHER AND DARK NIGHT WERE FACTORS IN THE ACCIDENT.

## 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 19950208001339A](https://openairdocs.org/incident/19950208001339A), Feb 8, 1995: Cessna 177RG (N33MR), Larkspur, CO, Destroyed, 1 fatal. Checked weather advised VFR no go. Departed anyway. Crashed en route low ceiling snow freezing rain. Wrong mindset.
- [Incident 19910627050399I](https://openairdocs.org/incident/19910627050399I), Jun 27, 1991: Cessna 177RG (N33MR), Denver, CO, Minor damage. Unable to extend landing gear. Made a gear up landing. Hydraulic line to gear had failed.

## Other aircraft with N33MR

- [Registered now](https://openairdocs.org/aircraft/N33MR): Rossum Michael M RV7A, S/N 72735, built 2007

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