Cessna 172N
N121MS is a Cessna 172N, a fixed-wing airplane with one motor with a piston engine, built in 1978. It has 4 seats. It is registered to Darcy Aviation LLC, an LLC in Danbury, Connecticut. The registration is valid: it was issued on December 31, 2022 and expires on December 31, 2029. It holds a standard airworthiness certificate for normal; utility, dated November 28, 1978.
Where is it now Last seen yesterday at 1:48 pm.
Last seen yesterday at 1:48 pm. Checking whether it is in the air right now…
Aircraft broadcast their own position; volunteer receivers pool what they hear. Owners who have asked the FAA not to be displayed are not shown.
Flight history: where it flew in the last seven days · follow it on the live map
Aircraft
- Maker
- Cessna
- Model
- 172N · all 172Ns and related versions
- Built of
- aluminiumThe airframe is aluminium: sheet metal over a riveted frame, the way most aircraft have been built since the 1940s. This is how the Cessna 172 Skyhawk 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
- 17271893
- Type
- Fixed-wing, single engineFAA type of aircraft code 4 (the FAA's broad category for the airframe). Every aircraft with this code · All codes
- Power
- Piston (reciprocating)FAA type of engine code 1 (what powers it, as the FAA classes engines). Every aircraft with this code · All codes, 1 motor · Lycoming 0-320 SERIES · 180 hp
- Seats
- 4
- Year built
- 1978
- Cruising speed
- 105 mph
- Transponder code
- A0588D (octal 50054215)
Registration
- Status
- Valid registrationFAA registration status code V (whether the registration certificate is in force). Every aircraft with this code · All codes
- Certificate issued
- December 31, 2022
- Expires
- December 31, 2029
- Last FAA action
- September 22, 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 · Normal; UtilityFAA certificate purpose code NU (the kind of airworthiness certificate it flies under and what it is approved for). All codes · November 28, 1978
- FAA region
- New EnglandFAA region code E (the FAA regional office that handles the record). All codes
- FAA record id
- 00950106
Owner as the FAA publishes it
- Name
- Darcy Aviation LLC
- Type
- LLCFAA type of owner code 7 (who holds the registration: a person, a company, a trust or a government body). Every aircraft with this code · All codes
- Address
- 1 Wallingford Rd Unit 2
Danbury, CT 06810
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 N121MS links to the rest of the register
- Cessna 172 Skyhawk 20,675 registered
- Cessna 72,684 aircraft on the register
- Built of aluminium · as the model family is built; the register does not record it per aircraft
- Lycoming O-320 series 27,313 aircraft with this engine series · 180 hp
- Darcy Aviation LLC 8 aircraft in the fleet
- Danbury, CT 65 aircraft registered in this town
- Danbury Municipal · DXR
- Connecticut 1,607 aircraft registered
- FAA orders naming the Cessna 172 Skyhawk 88 airworthiness directives
- Failure reports filed on the Cessna 172 Skyhawk 4,219 reports since 1995
- Approved modifications for the Cessna 172 Skyhawk 857 supplemental type certificates
- FAA orders naming the Lycoming O-320 series 29 airworthiness directives
- Failure reports on the Lycoming O-320 series 349 reports since 1995
- Where N121MS is now · Last seen yesterday at 1:48 pm.
The whole map of how records connect · these connections as data: /graph/aircraft/N121MS.json.
Records check free · 0 to understand · 5 clear
The public federal record on N121MS, 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 Darcy Aviation LLC, an LLC, certificate issued December 31, 2022, expires December 31, 2029. No fractional interest recorded. [1]
Standard certificate for normal; utility, dated November 28, 1978, consistent with the 1978 manufacture year. [1]
No earlier tail number is recorded against serial 17271893 for this model in the deregistered file. [2]
No other airframe has carried N121MS 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 N121MS. 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 23, 2026. registry.faa.gov/
- FAA deregistered aircraft file (part of the same download), file of October 23, 2026. registry.faa.gov/
- FAA document index: registry documents received in recent weeks, file of October 23, 2026. registry.faa.gov/
- NTSB aviation accident database (CAROL), records through September 30, 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 23, 2026. See this record on the FAA site · This record as data