N636N

This entry covers airframe N636N, a 1978-built Cessna 501 Citation I/SP, serial number 501-0069, currently owned by CITATION 501SP LLC of Sanford, FL, US and registered in the US. The airframe retains its original Citation I/SP configuration and is noted in public listings for its avionics fit and equipment complement. Its ownership is recorded as an LLC based in Sanford, Florida, and is reflected in current registry entries and sales/avionics listings. No additional private operator changes or notable incident history are provided in the available data.

The cabin of this airframe follows the standard Citation I/SP fit: a 7–8 place executive layout with an aft belted lavatory and a forward refreshment center, providing a conventional corporate interior for short‑to‑mid‑range missions. Avionics listed for this specific jet include a Sperry SPZ-500 IFCS, Garmin GNS-430, Collins/VHF comms, King KLN-900 GPS, and TCAS-1, as reported in public listings, equipping the airplane for typical executive transport operations and IFR regional hops. Based in Sanford, Florida, the operator profile suggests use for owner/charter transport within the jet’s approximately 1,328 nm range at cruise speeds near 357 kts and operating altitudes up to 41,000 ft. Routine maintenance considerations reflect the airframe’s 1978 manufacture date and its JT15D-1 powerplants, which influence parts availability and overhaul scheduling for operators.

The Cessna 501 Citation I/SP occupies the light business jet niche, offering moderate range and cruise performance suitable for short- to mid-range executive missions with an eight‑seat executive interior. With twin Pratt & Whitney Canada JT15D-1 engines and a service ceiling of 41,000 ft, the type is positioned for efficient regional point‑to‑point travel rather than intercontinental work. Market and resale considerations for a 1978 airframe like N636N typically emphasize avionics fit, engine program status, and documented maintenance history; the presence of modern navigational equipment and TCAS as listed supports continued utility in charter and owner‑operator roles.