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1973 Commander 500 SMulti-Engine Piston Aircraft • Tucson, AZ, USA

This 1973 Aero Commander 500S Shrike Commander, registration N500HM (serial number 3155), is offered at $330,000 and is currently undergoing its annual inspection, with completion expected by July 2026. It is the turbocharged, high-altitude model featuring the sought-after Merlyn (MPi) 350 HP conversion (STC SA5969NM), which pairs twin Lycoming TIO-540-J2B(D) engines with four-blade propellers for up to 350 HP to 30,000 feet. The airframe has 6,223.4 hours total time, with the left engine at 1,369.3 SMOH and the right at 1,383.5 SMOH. Notable recent maintenance includes a newly overhauled fuel servo and mechanical fuel pump on the right...

Year
1973
Make
Commander
Series
500
Model
500 S
Tail #
N500HM
Serial #
3155

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Specifications

Category
Multi-Engine Piston
Intended Use
Business, Aerial Surveying, Passenger
Flight Rules
VFR & IFR
Useful Load
3,222 lbs

Hours, Logs & Inspections

Total Time
6,223.4 hrs
Engine 1 Time
1,369.3 hrs (SMOH)
Engine 2 Time
1,383.5 hrs (SMOH)
Prop 1 Time
1,369 hrs (SMOH)
Prop 2 Time
1,385 hrs (SMOH)
Inspection Status
Currently in annual inspection; completion expected July 2026. Completed at sign-off: annual, ELT functional test (24-mo), right propeller IRAN, AD 2004-25-16 (heater pressure regulator). Spar/structural ADs in compliance (94-04-13, 94-04-14, 98-08-19). All other recurring inspections current (transponder, pitot/static, ELT battery, oil change).

Avionics

GPS

Garmin GNS 430W - GNS (WAAS GPS/NAV/COM)

Comms

Garmin GTR-205 - COM Radio

Audio

Garmin GMA 340 - GMA Audio Panel

ADSB

Garmin GTX 345 - ADS-B Out (via GTX Transponder)

ADS-B In

Garmin GTX 345 - ADS-B (via GTX Transponder)

EMS

Insight G4 - Twin-Engine Graphic Monitor

Transponder

Garmin GTX 345 - GTX Transponder

fuelFlow

Shadin Digital Fuel Flow

Additional Equipment

Oxygen System

New oxygen bottle installed, leak must be located before use

Air Conditioning

Air conditioning installed but has a refrigerant leak - currently used as a strong cabin fan, not for cooling

De-Ice System

Wing/empennage de-ice boots installed but inoperative

Engine & Propeller

Engine Type
Piston
Engine Count
2
Engine Make
Lycoming
Engine Model
TIO-540-J2B(D)
Engine Power
350 HP

Asking Price

$330,000

Aircraft Location

Tucson, AZ, USA

Listing Details

Used
For Sale

Price History

Jul 1, 2026: $330,000(+$5,000) - trade-a-plane

Jul 1, 2025: $325,000 - trade-a-plane

Contact Seller

First Seen: Jul 1, 2025

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Asking Price

$330,000