1980 Mooney M20K for sale

1980 Mooney M20K

Single Engine Piston

FOR SALE
$149,000
Location Spring Branch, TX
Total Time 3,625 hrs
Engine SMOH 166 hrs
Seats 4
Serial # 25-0428
Reg # N3594H
Engine Continental TSIO-360-GB;TSIO-360-LB
ICAO Type M20T
✓ FAA Valid ⚠ 1 NTSB 2 ADs ✓ Verified recently

Aircraft Details

Seller reported

Avionics & Equipment

IFR
Garmin GNX-375 WAAS GPS / ADS-B Transponer (with ADS-B Traffic and Weather). King KFC-200 Autopilot with Altitude Hold and Glide Slope/Glide Path Coupling. King KCS-55A Electric Slaved HSI. King KI-256 Flight Director / ADI. Dual King KY-197 Digitlal Coms. King KN-53 Digital Nav / VOR.

Description

Intercooler/Merlyn/Speed Brake equipped. Very low time engine. Nice Modern Paint. Ready to work! Priced right!

Engine

166 Hours Since Major Overhaul. Continental TSIO-360-LB(7), 210hp, 1800 TBO,

Propeller

166 Hours Since Overhaul. MT Light-Weight 3-Blade with Composite Blades. Prop is Heated.

Interior

Original Interior. Below average condition. Sheepskin covers on front seats.

Exterior

Very Attractive Paint. Stripped and Repainted in 2015 by Tejas. Modern Scheme.

Inspection

Annual Inspection Due May 2025. Very Good Maintenance History. Tanks Stripped and Resealed in 2019 by WetWingologists. New Windshield in 2021. New Pilot's Window in 2020.

Modifications / STCs

TurboPlus Intercooler, Merlyn Black Magic Wastegate (Upper Deck Pressure Controller), Precise Flight Speed Brakes, JPI EDM-830 Engine Monitor, Hoskins FT-101 Fuel Totalizer, The aircraft is plumbed for Oxygen but the bottle and regulator have been removed (the aircraft comes with a portable oxygen system).

Description and equipment details provided by the seller. AeroGurus does not verify seller-provided information.

Price Comparison 1 active offer

Source Price Action
Jimmy Garrison
controller.com
$149,000
GMax American Aircraft
controlleremea.co.uk
$151,623 *
GBP £112,608
GMax American Aircraft
aviationtrader.com.au
$153,594

* Converted to USD at daily European Central Bank (ECB) exchange rates

Estimate Monthly Payment

Mooney M20K loan calculator

AeroGurus

AeroGurus Data & Analysis

Independent data from FAA, NTSB, and market analysis

About This Mooney M20K

This 1980 Mooney M20K (N3594H) is a single engine piston with 3,625 hours on the airframe. There are currently 45 M20K aircraft listed for sale with asking prices ranging from $68,711 to $326,500. This aircraft is priced below the market average at $149,000.

FAA registration status: Valid. NTSB records show 1 incident for this airframe. There are 2 airworthiness directives applicable to this aircraft type — review AD compliance carefully before purchase. Mechanics have filed 10 service difficulty reports for this type — common maintenance items to discuss during pre-buy.

Pre-Purchase Checklist

FAA registration: Valid (KILO SIERRA LLC)
Safety record: 1 NTSB incident
Airframe: 3,625 hours
Check 2 ADs compliance — mandatory before flight
Budget $5,000-15,000 for pre-purchase inspection

Ownership & Registration

Registered Owner

KILO SIERRA LLC

Registration Address

HARWICH, MA

Certificate Issued

2019-05-08

Airworthiness

1980-09-16

FAA Status

Valid

Source: FAA Aircraft Registry, updated Mar 15, 2026

Location & Ownership

FAA records

Aircraft Location

Spring Branch, TX

Seller reported 896 more aircraft in TX →

Title Status

No FAA title records

Available for US-registered aircraft only

Location note: Listed in Spring Branch, TX but FAA registration shows HARWICH, MA. Aircraft may have been relocated. Confirm current location with seller.

Source: FAA Aircraft Registry, FAA Civil Aviation Registry (DocIndex). Title data may be delayed. Always verify with an aviation attorney before purchase.

Safety Record

1 incident found in NTSB database for N3594H.
accident none
1984-08-06
THIBODAUX, LA

Source: NTSB Aviation Accident Database, checked Mar 18, 2026

Airworthiness Directives — Mooney M20K

ADs are mandatory safety instructions issued by the FAA. 2 recent ADs found for this aircraft type.

FR-98-31011 1998-12-28

Mooney Aircraft Corporation Models M20B, M20C, M20D, M20E, M20F, M20G, M20J, M20K, M20L, M20M, and M20R Airplanes

View full AD →
FR-98-27330 1998-11-26

Mooney Aircraft Corporation Models M20J, M20K, M20M, and M20R Airplanes

View full AD →

Source: FAA Airworthiness Directives database. Showing most recent ADs for this aircraft type.

Service Difficulty Reports — Mooney M20K

SDRs are reports filed by mechanics about problems found during maintenance. 10 recent reports for this aircraft type.

Fuselage CORRODED
2024-08-21

E051424 LH CABIN OMEGA BEAM #2 GUSSETT IS CORRODED. RAR THE LH CABIN OMEGA BEAM #2 GUSSET IAW EMB 145 SRM 51-40-02.

Fuselage CORRODED
2024-08-21

E051425 LH CABIN OMEGA BEAM #3 GUSSETT IS CORRODED. RAR LH CABIN OMEGA BEAM #3 GUSSET IAW EMB 145 SRM 51-40-02.

Fuselage CORRODED
2024-08-19

E050583 LH OMEGA BEAM GUSSET CORRODED BTWN FR 50-51. RAR THE LH OMEGA BEAM GUSSET BTWN FR 45-53 IAW EMB 145 SRM 51-40-02.

Structures UNKNOWN
2023-02-11

SUBJECT: REPETITIVE VIOLATIONS OF PART 43: SIGNING TOURISM BY A&P MECHANIC DESIGNATED TO ACT ACCORDING TO BUT NOT COMPLYING WITH PART 43.3 D.MAJOR DAMAGE ON ENGINE DURING REINSTALLATION IN GERMANY AFTER TOTAL OVERHAUL IN USA BY NEGLEGENCE OF MANUFACT...

Landing Gear BROKEN
2021-10-21

REAR NOSE GEAR TRUSS BROKE UPON LANDING. MECHANIC SUSPECTED AIRLINE CRACK IN PART THAT WAS NOT OBSERVABLE DURING INSPECTIONS. THIS SDR IS BEING SUBMITTED BY FAA ASI, FOR THE OWNER, WHO IS IIC FOR THE INCIDENT THAT THIS AIRCRAFT WAS INVOLVED IN.

Doors DESTROYED
2019-03-18

THE BAGGAGE DOOR WAS LATCHED PRIOR TO FLIGHT. AFTER TAKEOFF AT ABOUT 500 FEET AGL THE BAGGAGE DOOR BLEW OPEN AND SUSTAINED SUBSTANTIAL DAMAGE. THE PILOT LANDED WITHOUT FURTHER INCIDENT. UPON LANDING AN A&P INSPECTED THE LATCH AND OBSERVED IT WAS ST...

Equipment/Furnishings CRACKED
2017-05-03

DURING THE TAKEOFF ROLL, THE PILOT'S SEAT SUDDENLY BROKE LOOSE AND MOVED FULL AFT. THE CAUSE WAS FOUND TO BE A CRACKED BELLCRANK TUBE UNDER THE PILOT'S SEAT. I WILL FORWARD PHOTOS.

Fuel BROKEN
2016-08-07

FUEL LINE FROM PRIMER SOLENOID TO THROTTLE BODY,BROKE IN HALF UNDER B-NUT, CAUSING THE ENGINE TO LOSE FUEL SUPPLY TO THROTTLE BODY.

Turbines BROKEN
2016-05-01

V BAND CLAMP HOLDING TURBOCHARGER ONTO EXHAUST BROKE AT THE SPOT WELD.

Fuel WRONG PART
2015-06-11

(CAN) OWNER ASK TO HAVE A FUEL LEAK REPAIRED AND COMPLAINED THAT FUEL DRAINING WAS VERY SLOW. AFTER DRAINING TANKS IT WAS NOTED THAT AN UNAPPROVED REPAIR HAD BEEN UNDERTAKEN AND THE SEALANT APPLIED COVERED THE DRAIN CHANNEL TO THE QUICK DRAIN. IN ORD...

Source: FAA Service Difficulty Reporting System. Shows maintenance issues reported by mechanics for this aircraft type.

Price History

3 price events · sources: controller.com, controlleremea.co.uk

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Prices and listings updated daily · Data: FAA Registry, NTSB · About our data
Disclaimer: All prices, cost estimates, and market values shown are based on asking prices from third-party sources and are provided for informational purposes only. AeroGurus is not an appraiser, broker, or financial advisor. Always obtain a professional appraisal and independent inspection before making a purchase decision. Actual transaction prices may differ from asking prices.