Cessna A185F
N4663C is a Cessna A185F, a fixed-wing airplane with one motor with a piston engine, built in 1974. It has 6 seats. It is registered to an individual in Denver, Colorado. The registration is valid: it was issued on July 1, 2015 and expires on July 31, 2028. It holds a standard airworthiness certificate for normal, dated November 29, 1974.
Aircraft
- Maker
- Cessna
- Model
- A185F · all A185Fs and related versions
- Serial number
- 18502590
- Type
- Fixed-wing, single engine
- Power
- Piston (reciprocating), 1 motor · Cont Motor IO 520 SERIES · 285 hp
- Seats
- 6
- Year built
- 1974
- Cruising speed
- 127 mph
- Transponder code
- A5B2A9 (octal 51331251)
Registration
- Status
- Valid registration
- Certificate issued
- July 1, 2015
- Expires
- July 31, 2028
- Last FAA action
- October 25, 2024
- Airworthiness
- Standard · Normal · November 29, 1974
- FAA region
- Northwest Mountain
- FAA record id
- 00873274
Owner as the FAA publishes it
- Name
- Knox William D
- Type
- Individual
- Address
- 3022 N Vine St
Denver, CO 80205-4638
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.
Earlier use of this number 1
Records check free · 1 to understand · 4 clear
The public federal record on N4663C, 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 Knox William D, an individual, certificate issued July 1, 2015, expires July 31, 2028. No fractional interest recorded. [1]
Standard certificate for normal, dated November 29, 1974, consistent with the 1974 manufacture year. [1]
No earlier tail number is recorded against serial 18502590 for this model in the deregistered file. [2]
N4663C was previously assigned to 1 other aircraft: Cessna 170 (serial 25607, cancelled March 6, 1959). Histories keyed to the tail number alone can mix aircraft up; this check keys on the serial number. [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 N4663C. 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 October 2, 2026. registry.faa.gov/
- FAA deregistered aircraft file (part of the same download), file of October 2, 2026. registry.faa.gov/
- FAA document index: registry documents received in recent weeks, file of October 2, 2026. registry.faa.gov/
- NTSB aviation accident database (CAROL), records through August 27, 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, October 2, 2026. See this record on the FAA site · This record as data