Hiller UH-12D
N47077 is a Hiller UH-12D, a rotorcraft with turboshaft engines (a helicopter or multicopter), built in 1957. It has 4 seats. It is registered to Knutson Flying Service INC, a corporation in Tioga, North Dakota. The registration is valid: it was issued on September 29, 1978 and expires on May 31, 2028. It holds a standard airworthiness certificate for normal, dated June 25, 1975.
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Aircraft
- Maker
- Hiller
- Model
- UH-12D · all UH-12Ds and related versions
- Built of
- steel tube and aluminiumA welded steel-tube frame carries the loads, with aluminium (and some fibreglass) skins over it. This is how the Hiller UH-12 family is built; the FAA does not record construction for each aircraft, and the type certificate data sheet is the authority for this one.
- Serial number
- 947
- Type
- RotorcraftFAA type of aircraft code 6 (the FAA's broad category for the airframe). Every aircraft with this code · All codes
- Power
- TurboshaftFAA type of engine code 3 (what powers it, as the FAA classes engines). Every aircraft with this code · All codes, 1 motor · Lycoming 0-435 · 175 hp
- Fuel
- 100LL avgas
- Seats
- 4
- Year built
- 1957
- Cruising speed
- 75 mph
- Transponder code
- A5C487 (octal 51342207)
Registration
- Status
- Valid registrationFAA registration status code V (whether the registration certificate is in force). Every aircraft with this code · All codes
- Certificate issued
- September 29, 1978
- Expires
- May 31, 2028
- Last FAA action
- May 12, 2023
- Airworthiness
- StandardFAA airworthiness class code 1 (the kind of airworthiness certificate it flies under and what it is approved for). Every aircraft with this code · All codes · NormalFAA certificate purpose code N (the kind of airworthiness certificate it flies under and what it is approved for). All codes · June 25, 1975
- FAA region
- Great LakesFAA region code C (the FAA regional office that handles the record). All codes
- FAA record id
- 00953424
Owner as the FAA publishes it
- Name
- Knutson Flying Service INC
- Type
- CorporationFAA type of owner code 3 (who holds the registration: a person, a company, a trust or a government body). Every aircraft with this code · All codes
- Address
- PO Box 333
Tioga, ND 58852
Owners can ask the FAA to withhold their name and address from public files. When they do, those fields are blank here as well. How that works.
Documents on file 0
No bills of sale, loans or other documents are indexed against this tail number.
Connections how N47077 links to the rest of the register
- Hiller UH-12 217 registered
- Hiller 242 aircraft on the register
- Built of steel tube and aluminium · as the model family is built; the register does not record it per aircraft
- Lycoming O-435 88 aircraft with this engine series · 175 hp
- Type certificate 4H10 · held by Siam Hiller Holdings INC
- Knutson Flying Service INC 4 aircraft registered to this organisation
- Tioga, ND 67 aircraft registered in this town
- Tioga Municipal · D60
- North Dakota 2,495 aircraft registered
- FAA orders naming the Hiller UH-12 60 airworthiness directives
- Failure reports filed on the Hiller UH-12 65 reports since 1995
- Approved modifications for the Hiller UH-12 112 supplemental type certificates
- FAA orders naming the Lycoming O-435 4 airworthiness directives
The whole map of how records connect · these connections as data: /graph/aircraft/N47077.json.
Records check free · 1 to understand · 4 clear
The public federal record on N47077, read the way a buyer, lender or insurer reads it: FAA registration, prior tail numbers keyed on the serial number, reuse of the tail number, recent registry filings, and the NTSB accident record under this and every earlier registration.
Valid registration to Knutson Flying Service INC, a corporation, certificate issued September 29, 1978, expires May 31, 2028. No fractional interest recorded. [1]
The airworthiness certificate on file is dated June 25, 1975, 18 years after the 1957 manufacture year. A re-issued certificate commonly follows export and re-import, a rebuild, or a return to the register after cancellation. The cause is documented in the FAA aircraft records file, which the full report obtains. [1]
No earlier tail number is recorded against serial 947 for this model in the deregistered file. [2]
No other airframe has carried N47077 according to the deregistered file. [2]
No bills of sale, loans or releases have reached the registry in recent weeks. The index covers only recent filings; older liens are in the records file. [3]
No NTSB investigation records located under N47077. CLEAR means the query ran and returned nothing, not that nothing ever happened. [4]
These live in the FAA aircraft records file (every document ever filed against the aircraft) and, for larger aircraft, the International Registry. Part of the full report.
AD compliance against the logbooks and flight-activity reconciliation are researched layers of the full report.
- FAA Releasable Aircraft Database, master file, file of November 6, 2026. registry.faa.gov/
- FAA deregistered aircraft file (part of the same download), file of November 6, 2026. registry.faa.gov/
- FAA document index: registry documents received in recent weeks, file of November 6, 2026. registry.faa.gov/
- NTSB aviation accident database (CAROL), records through October 28, 2026. data.ntsb.gov/carol-main-public/basic-search
This automated check reads the public federal record. Nothing here is a legal opinion, an appraisal or a statement about the aircraft's condition; a CLEAR line is a statement about the searched record, not the aircraft.
Source: FAA Civil Aviation Registry, Releasable Aircraft Database, November 6, 2026. See this record on the FAA site · This record as data