General Specs

For Sale





Riverside, CA USA

General Specs


579 SMOH

150 SMOH

590 SPOH

590 SPOH






Additional Classifications

Detailed Description

Twin Commander 1968 500S with low time (150/500 hrs) Merlyn 290 turbo IO-540 E1B5 engines, 590 hr props and Garmin 430/STEC AP avionics. Also setup as a Camera Aerial survey ship with a large camera hole and electrics.

Avionics / Equipment

Garmin 430W with GPSS steering and traffic, LOC/GS. 
Garmin SL30 Nav/Com with LOC/GS.
STEC 30 autopilot, fully coupled.  GMA 340 Audio Panel, AT 150 Transponder. Electric trim.
PTT, Full Co-pilot panel. OAT, Digital EGT, Avionics Master/Alt Static/Heated Pitot. Avionics Master.

Accessories and Maintenance items
Factory Miller/Shrike Nose and cockpit door. STC Flap gap seals. Merlyn oil filter STC. 
STC split engine bowls. Mr.RPM Vertical Stab tip STC.
A. D Howard STC “ 21” Camera hole with electric control panel. ($30K STC installed). 
Can run LIDAR/Digital Cameras.
External power, Rear Baggage area, Wing Strobes/Beacon. 90 Amp alternators,
156 Gallons Total Fuel
All landing gear overhauled recently by Commander Aero. 
Airframe extensively gone through at annual. New batteries. 
36 month wing spar fresh inspection with sale. 
No prior 208A history of corrosion. SB 208A.


1968 Shrike Twin Commander Merlyn Turbo 500S N9UB 

Total Time Airframe: 7160 Hours.  Useful load: 2200lbs.  
S/n: 500S-1784-7

Camera/Aerial Survey Aircraft
Also comes as a normal use aircraft with camera holes closed up.

Engines / Mods

Overhauled by Mountain View Airmotive in 2014 and 2015. 
Merlyn 290 Turbo Normalized STC (IO-540-E1B5. 290HP) 1800 TBO
Left: 579 Hrs. Compressions: 1/70 2/71 3/71 4/70 5/71 6/71.
Right: 150 Hrs. Compressions: 1/76 2/80 3/74 4/73 5/72 6/75.
Both engines recently borroscoped at annual. Many OH accessories on both engines.

Propellers Total Time:  
Hartzell 3-blade Propellers overhauled by Quality Aircraft Accessories in 2014.
Left: 590    Right: 590  Chrome spinners. MC-1 Prop Sync.

Interior / Exterior

Exterior: White and Black with accent stripes. Windshield and Cabin windows in good condition.
Rated 6/10. Exterior has hail on top of fuselage and wings. See photos.

Interior: Gray leather seats with grey carpet. Gray fabric upholstery side panels. Headliner ok. 
Rated 5/10 fair condition.


Camera mapping aircraft operating all over the USA. Was also operated by Central Air of Kansas. 
No known major damage history (Hail damage in 2016), Full comprehensive maintenance history by Commander Aero and other reputable shops. All logbooks from new. 
Annual inspection now due 6/2018, Pitot Static due 4/2020

Price: $139,900

Riverside Air Service makes no warranties expressed or implied, as to the accuracy of the information. Buyers should rely on their own inspection of the aircraft and should verify all information for accuracy. This aircraft is owned by Riverside Air Service, Inc. Aircraft subject to prior sale.

Contact Info