N121KM 1981 Cessna Citation II
- 1981Built
- 8Seats
- 1,900 nmRange
- 399 ktCruise
- 43,000 ftCeiling
INSIDE
The Cessna Citation II cabin.
Illustrations of a typical Cessna Citation II cabin, not N121KM’s. Every aircraft’s completion differs.
SPECIFICATIONS
Cessna Citation II specs
Published figures for the type, from public sources. A given aircraft varies with its completion, weight and mods.
- Model
- Cessna Citation II
- Year
- 1981
- Serial number
- 550-0273
- Engines
- 2 × Pratt & Whitney JT15D-4
- Thrust
- 2,500 lbf each
- Seats
- Up to 8
- Range
- 1,900 nm
- Cruise
- 399 ktas
- Published Mach
- 0.67
- Ceiling
- 43,000 ft
- Fuel capacity
- 742 US gal
- ICAO type
- C550
- Exterior
- White (Matterhorn White) with Gloss Black lower and gold accents
THE AIRCRAFT’S LIFE
N121KM, from delivery to today.
Registration events from FAA records, compiled November 2025. Maintenance, damage and component history live in the logbooks, not the registry.
-
Parker Air LLC
Owned/operated by PARKER AIR LLC (multiple prior entries).
FAA registry -
MSGM Aviation LLC
Transfer/listing recorded to MSGM AVIATION LLC.
FAA registry -
Tupelo LTD LC
Previous registration entry listing TUPELO LTD LC (public listing).
FAA registry -
Tupelo LTD LC
Registration/certificate action listing TUPELO LTD LC as registrant.
FAA registry
FAA REGISTRATION
Registration details
- Registration
- N121KM
- Status
- Current as of November 2025
- Certificate issued
- Apr 21, 2023
- Airworthiness date
- Jul 23, 1981
- Last FAA action
- Apr 21, 2023
- Registration expires
- Feb 29, 2028
- Mode S code (hex)
- A05856
- Aircraft category
- Fixed-wing multi-engine
- Weight class
- 12,500 to 20,000lbs
From FAA registry data as of November 2025. Check the FAA registry for the current record.
OWNERSHIP
Registered owner
Tupelo LTD LC
ESTIMATED VALUE
What N121KM might be worth
No estimate on record
Value depends on total time, engine program, damage history and the completeness of the logbooks.
Open the aircraft value toolEQUIPMENT AND HISTORY
As reported in public sources
- Avionics
- Avidyne FlightMax EX-500 MFD; dual Garmin GNS-530AW; L3 Landmark TAWS; BFGoodrich TCAS-I (TCAS-791); Garmin GTX transponder(s) noted on configuration summaries
- Cabin
- Executive 8-passenger layout with mid-cabin 4-place club and forward refreshment center; belted lavatory aft
- Interior
- Light tan leather interior refurbished (reporting indicates cabin work completed 2009); forward refreshment center, mid-cabin club seating
Listings and registries are not the logbooks. A pre-buy confirms equipment, program status and damage history from the records themselves.
RESEARCH NOTES
About N121KM
Compiled with AI assistance from the public sources listed below, November 2025. Not checked against the aircraft's logbooks.
Overview
This entry covers airframe N121KM, a 1981-built Cessna 550 Citation II with manufacturer serial number 550-0273. The aircraft is recorded as owned by the corporation Tupelo LTD LC of Lake Charles, LA, US, which serves as the known operator/home base for the type-recorded operator. No additional registry transfers, incidents, or notable sales actions are published for this specific airframe in the provided data. The airframe carries a US civil registration and is presented in executive configuration with configuration summaries noting updated avionics.
Operations & Cabin
The cabin of N121KM is outfitted in an executive 8-passenger layout featuring a mid-cabin four-place club and a forward refreshment center, with a belted lavatory aft. Avionics fitted to this airframe as noted in configuration summaries include Avidyne FlightMax EX-500 MFD, dual Garmin GNS-530AW, L3 Landmark TAWS, BFGoodrich TCAS-I (TCAS-791) and Garmin GTX transponder(s). Typical missions for this airframe profile would be short- to medium-range executive transport within the aircraft’s approximately 1,900 nm range at near-400-knot cruise speeds, operating from its reported Lake Charles, Louisiana base. Maintenance considerations for this airframe reflect the twin JT15D turbine engines and systems common to the Citation II fleet, with avionics retrofits noted in configuration summaries that may affect avionics support and upgrades.
Model & Market Context
The Cessna 550 Citation II occupies the light to lower-medium business jet niche, offering transcontinental short-haul capability with turbofan thrust rated at 2,500 lbf per engine and a typical certified ceiling of 43,000 ft. Competing models in its era and market segment include other light jets that prioritize lower operating cost and runway performance over larger-cabin comfort. For prospective buyers or charter operators, considerations include airframe age (this unit is a 1981 build), lifecycle maintenance of JT15D engines, and the impact of avionics upgrades such as the installed Avidyne and Garmin suites on resale and operational flexibility.
SOURCES
Where this page comes from
Built from FAA registry records, manufacturer specifications, and public flight-tracking and market data, compiled November 2025. Values come from Radar’s aircraft value model. Owners and operators can ask for a correction or removal.
BUYING, SELLING OR FINANCING
What to check before a deal
- Pre-buy records reviewWhat to read in the logbooks before you sign
- Aircraft title searchLiens, registrations and the chain of title
- Aircraft valuationHow records, time and programs move the price
- Aircraft maintenance recordsWhat a complete records package holds
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N121KM is not a Radar customer record. This page is built from public sources as of November 2025. Owners and operators can ask for a correction or removal.