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1978 Cessna 340AMulti-Engine Piston Aircraft • Upland, CA, USA

This 1978 Cessna 340A, registration N15WM, is a low-time example with 3,670 total hours on the airframe and 163 hours since major overhaul on both Continental TSIO-520-JcNcNB engines, which were performed by Western Skyways Inc. in March 2020. The propellers also have 163 hours since overhaul, completed by Johnson Propeller in January 2020. The aircraft is equipped with the RAM VI Conversion 335 HP STC, along with a RAM 310 HP STC and GAMI Injectors. Left and right cylinder compressions are provided, with the highest reading at 78/80 on each side. The airframe has no known damage history, and the logs are available from 1996 to current,...

Year
1978
Make
Cessna
Series
340
Model
340A
Tail #
N15WM
Serial #
340A0523

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Specifications

Category
Multi-Engine Piston
Intended Use
Business, Passenger, Recreational, Utility
Flight Rules
IFR
Useful Load
1,779 lbs
Seats
6

Hours, Logs & Inspections

Total Time
3,670 hrs
Engine 1 Time
163 hrs (SMOH)
Engine 2 Time
163 hrs (SMOH)
Prop 1 Time
163 hrs (SOH)
Prop 2 Time
163 hrs (SOH)
Logbook Status
Logs from 1996 to Current. Owner trying to find 1996 Logs and back, missing from a move.
Inspection Status
Last Annual 08/2025, Annual Inspection Due 08/2026, IFR: 91.411/91.413 (IFR Pitot/Static Test) Due, ELT Due 06/2027

Avionics

GPS

Garmin GTN 750Xi - GTN GPS Nav Comm, GTN GPS Nav Comm

Comms

Garmin GTN 750Xi - GTN GPS Nav Comm, GTN GPS Nav Comm

AP

Garmin GFC 600 - GFC Auto Pilot

Audio

Garmin GMA 35 - GMA Audio Panel

Traffic

Garmin GTX 330ES - Transponder ADS-B

ADSB

Garmin GTX 330ES - Transponder ADS-B

PFD

Aspen EFD-1000 - Pro

MFD

Avidyne EX500 - MFD

EMS

JPI EDM 960 - JPI EDM Primary Engine Data Management System

Additional Equipment

Air Conditioning

Cessna Air Conditioning System - STC to 134A Refrigerant

ELT

Artex ME406 - ELT, ELT

Clock

Davtron M811B - Clock

Spoilers

Spoilers per STC SA4948NM

Vortex Generators

Micro VG's with 5% Take off Weight Increase

Sun Visors

Rosin Sun Visors

Synchrophaser

RAM Synchrophaser IFR Approved

Synchronizer

RAM Synchrophaser

Emergency Locator Transmitter

Artex ME406 - ELT

Interior & Exterior

Interior Notes
Nice Paint White with White and Grey Stripes Upholstery Very Clean Leather Grey
Exterior Notes
Nice Paint White with White and Grey Stripes

Engine & Propeller

Engine Type
Piston
Engine Count
2
Engine Make
Continental
Engine Model
TSIO-520-JcNcNB
Engine Power
335 HP
Propeller Model
Hartzell PHC-C3YF-2VF Blade Model FC-7663DB-2Q

Asking Price

$369,999

Aircraft Location

Upland, CA, USA

Listing Details

Used
For Sale

Price History

Apr 28, 2026: $369,999 - trade-a-plane

Apr 28, 2026: $369,999(-$5,000) - controller

Apr 16, 2026: $374,999 - trade-a-plane

+13 more price changes

Contact Seller

First Seen: Oct 11, 2025

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Asking Price

$369,999