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1981 Beechcraft C23 Sundowner 180Single-Engine Piston Aircraft • RI, USA

This 1981 Beech Sundowner C-23, registration N174DQ (serial M2310), is offered for auction running November 11 through November 18, 2026, with a reserve of $75,000, a minimum bid of $55,000, a 6% buyer premium, and a $5,000 deposit required. The airframe shows 2,890 total hours, with 580 hours since engine overhaul on the Lycoming O-360-A4K, which was overhauled in April 2002 at 2,322.34 total time; compressions as of May 2026 were 72, 74, 70, and 72. The two-bladed Sensenich propeller shows 651 hours since overhaul, performed at 2,239.18 total time by Rocky Mountain Propeller. A lightweight Sky-Tec starter has been fitted, the annual...

Year
1981
Make
Beechcraft
Series
Sundowner
Model
C23 Sundowner 180
Tail #
N174DQ
Serial #
M2310

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Specifications

Category
Single-Engine Piston
Intended Use
Training, Passenger, Recreational
Useful Load
803 lbs
Seats
4

Hours, Logs & Inspections

Total Time
2,890 hrs
Engine 1 Time
580 hrs (SMOH)
Prop 1 Time
651 hrs (SPOH)
Inspection Status
Annual Performed May 2026; ELT Battery due March 2027; New windshield installed 9/2022

Avionics

GPS

Garmin GNS 430 - GNS GPS/Nav/Com

Comms

MAC 1700 - MAC NAVCOM, ADF (INOP), DME with NAV Loran, ILS/LOC/VOR LOC/VOR

AP

Century I - I Autopilot with 1, 2, Loran Select

Audio

Garmin GMA 340 - GMA Audio Panel

ADSB

UAvionix SkyBeacon - ADS-B GTX Transponder

Additional Equipment

Vent Blower

Precise Standby Vacuum System

Tanis Heater

Dual Flight Controls and Brakes

Dual Batteries

Dual 25 Amp-hr Batteries

SkyBeacon

UAvionix SkyBeacon - ADS-B

Wing Strobe Lights

Whelen Wing Strobe Lights

Lightweight Starter

Sky-tec - Lightweight Starter

Digital Volt Meter

Electronics International Digital Volt Meter

Windshield

New Windshield Installed 9/2022

ELT

ELT Battery Due March 2027

Standby Vacuum System

Precise Standby Vacuum System

Starter

Sky-tec Starter - Lightweight

Interior & Exterior

Interior Year
2022
Interior Notes
Marine Blue Fabric Striped Seats with Navy Trim and Blue Carpet; Carpet replaced in 2022
Exterior Notes
Overall Matterhorn White with Aristo Blue and Marlin Blue Trim

Engine & Propeller

Engine Type
Piston
Engine Count
1
Engine Make
Lycoming
Engine Model
O-360-A4K
Propeller Model
Sensenich 2-Bladed

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Aircraft Location

RI, USA

Listing Details

Used
For Sale

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First Seen: Oct 23, 2026

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