# N30921: 1970 Cessna 177B, registration cancelled 2018-01-17

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: January 17, 2018
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Cessna 177B](https://openairdocs.org/model/cessna-177b) (registry code 2073708)
- Engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514)
- Data sheets: [TCDS A13CE](https://openairdocs.org/tcds/A13CE) (OpenAirDocs)
- Serial number: 17701546
- Year built: 1970
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal, utility
- Airworthiness date: August 24, 1970
- Certificate issued: December 19, 1979
- Last registry action: July 21, 2009
- Mode S code: A34379
- Owner when cancelled: [Kirn Michael D](https://openairdocs.org/faa-owner/KIRN%20MICHAEL%20D)
- Location: [Poplar, MT](https://openairdocs.org/faa-place/MT/Poplar)
- Owner type: Individual
- Owner's area on the map: 48.2365° N, 105.1589° W: Placed by OpenAirDocs at the center of ZIP code 59255, within about 15 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N30921
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=30921
- Page: https://openairdocs.org/deregistered/N30921-2018-01-17

From the FAA registry file of October 31, 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 177B: https://openairdocs.org/model/cessna-177b.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 SEA04FA003](https://openairdocs.org/ntsb/SEA04FA003), Oct 9, 2003: Cessna 177B (N30921), Chinook, MT, destroyed, 2 fatal. Probable cause: The total loss of engine power in cruise flight due to the separation of the carburetor from its mounting bolts, and the pilot's failure to adequately compensate for strong crosswinds while…

## 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 20031009024959A](https://openairdocs.org/incident/20031009024959A), Oct 9, 2003: Cessna 177B (N30921), Chinook, MT, Destroyed, 2 fatal. (-23) After departing great falls (gtf), Montana, for poplar (42S), Montana, the pilot received a weather briefing from gtf flight service station for light to…

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