N551LS

The airframe bearing registration N551LS is a Cessna 551 Citation IISP built in 1981 with serial number 551-0369. The airframe is currently owned by MIXED WING LLC, an LLC based in Wilmington, DE, US, and is registered in the US civil registry. The ownership record reflects commercial/llc ownership rather than individual private ownership, and the available public data lists valuation and detailed condition summaries as Not published. There are no additional publicly noted registry actions beyond standard US registration for this specific airframe.

This airframe typically features a six- to eight-place executive interior described as a Typical 6-8 place executive layout with forward galley and enclosed lavatory (operator-specific fitments vary); seat count is listed as 8, reflecting maximum configured occupancy for this example. Avionics installations are commonly dual Collins ProLine-style suites with retrofit options including RVSM, TAWS B and ADS-B, matching the operator-specific avionics noted for this airframe. Typical missions for the Citation IISP airframe include short- to mid-range executive transport and light charter operations within a roughly 1,220 nm envelope at cruise speeds near 355 kts, operating from the owner’s base in Wilmington, DE, US or other US metropolitan airports. Maintenance considerations for this airframe prioritize inspection programs for the JT15D-4 engines and avionics retrofits specified by the operator.

The Cessna 551 Citation IISP occupies the light-to-mid-size business jet niche, offering transcontinental capability for shorter sectors with a service ceiling of 43,000 ft and efficient twin JT15D-4 powerplants. Competing types in its era and market include other light jets with similar range and seating; demand among buyers and charter operators tends to focus on airframes with upgraded avionics (RVSM/ADS-B) and well-documented maintenance history. Resale and maintenance considerations specific to this airframe hinge on condition records, engine time on the Pratt & Whitney Canada JT15D-4 units, and the extent of operator-specific cabin and avionics retrofits.