1979 Mooney M20K 231Single-Engine Piston Aircraft • Upland, CA, USA

This 1979 Mooney M20K 231, registered as N231BZ, presents as a well-maintained and recently upgraded example with 3,656 total hours on the airframe. The Continental TSIO-360-GB engine has 950 hours since major overhaul, with a top overhaul completed just 40 hours ago that included new factory Continental cylinders. The McCauley two-blade propeller also shows 950 hours since overhaul. The aircraft benefits from a meticulous maintenance regimen featuring oil changes every 20 hours, and its next annual inspection is not due until December 2026, with pitot-static and transponder checks current until March 2026.

The aircraft is equipped with a...

Year: 1979

Make: Mooney

Series: M20

Model: M20K 231

Tail #: N231BZ

Serial #: 25-0142

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Specifications

Category: Single-Engine Piston

Intended Use: Business, Recreational

Flight Rules: IFR

Seats: 4

Hours, Logs & Inspections

Total Time: 3,656 hrs

Engine 1 Time: 950 hrs (TSMOH)

Prop 1 Time: 950 hrs (SMOH)

Logbook Status: Complete Logs

Inspection Status: Aircraft has been flown regularly Meticulously Maintained Annual Inspection Due 12/2026 Pitot Static and Transponder C/W 03/2026

Avionics

GPS

Garmin GTN 650 - WAAS GPS/Nav/Com

Comms

Garmin GX 255A - Nav/Com

Garmin GFC 500 - Autopilot

PFD

Garmin GI 275 - ADI, HIS

MFD

Garmin GI 275 - HIS

EMS

Garmin EDM 830 - with 6 Each EGT and CHT, TIT, Fuel Computer, OP, OT, OAT, Manifold Pressure, Tachometer and Horsepower Calculator

ADSB

Garmin GTX 345 - Transponder with ADS-B In/Out

ADS-B In

Garmin GTX 345 - Transponder with ADS-B In/Out

Additional Equipment

Oxygen System

4 Place Portable Oxygen Tank

Lighting

LED Wingtip Strobes / Anticollision Light, LED Belly Strobe

Power Outlets

USB Power Outlets

Panel Lighting

Panel Lighting Rheostat

Speedbrakes

Speed Brakes

Aircraft Cover

Bruce Custom Cover

Battery Charger

Battery Minder

USB Power

USB Power Outlets

Speed Brakes

Battery

Recent Main Battery Replacement, Battery Minder

Landing Gear

New Landing Gear Shock Disc

Tires and Brakes

New Tires and Brakes

Exhaust System

Turbo Charged with TurboPlus Intercooler, Merlyn Upper Deck Pressure Controller (Wastegate)

Fuel System

GAMI Injectors

Starter

New High-Performance Starter

Interior & Exterior

Interior Year: 2004

Paint Year: 2006

Interior Notes: New in 2004 Black Tweed Seats and Black Carpets Very Good Condition. Sheep Skin Covered Front Seats Back Seat - 'Like New'

Exterior Notes: Stripped and Repainted in 2006. Classic Mooney Scheme in Ice Silver with Black and Red Trim. Owner has the aircraft Ceramic Coated every year. Very Good Condition.