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Aircraft record

N520CF1998 Eurocopter AS365N3

DeregisteredUnclaimedSource: FAA, updated Oct 16, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Jul 27, 2024.

Safety record in brief:2 NTSB events (substantial damage at worst, latest Jul 2022)9 ADs may apply8 service difficulty reports

Registration
Deregistered
Last based in
Dayton, OH
owner city / state
Engine
ARRIEL 2C · 779 hp
Turbomeca
Owners
1
since 2004
NTSB events
2
substantial, 2022
ADs may apply
9
confirm with A&P
Service reports
8
since 1995

Registration

FAA Aircraft Registry · Oct 16, 2026
Last registered owner
Miami Valley Hospital
Owner type
Corporation
City, state
Dayton, OH
Certificate issued
Jan 8, 2004
Canceled
Jul 27, 2024
Airworthiness
Standard · Transport
Airworthiness date
Jun 29, 2004

We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.

Airframe & engine

FAA Registry + type data

Airframe

Manufacturer
Eurocopter
Model
AS365N3
Year
1998
Serial number
6537
Aircraft type
Rotorcraft
Category
Land
Certification
Type Certificated
Seats
14
Engines
2
Max takeoff weight
12,500 - 19,999 lb
Type certificate data sheet
H10EU
Mode S code
A68926

Engine

Make and model
Turbomeca Arriel 2c
Type
Turbo-shaft
Power
779 hp

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records
  1. 2004 – 2024Miami Valley HospitalDayton, OH

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 16, 2026 · SDRs · Oct 16, 2026

NTSB events (2)

Accident · substantial damage

Jul 26, 2022 · Hamilton, OH

The pilot’s decision to continue the landing without having visually identified wires that were known to be in the vicinity of the landing zone, which resulted in a collision with the wires while attempting an off-airport landing in dark night visual meteorological conditions.

Damage
Substantial
Injuries
Minor
Report
ERA22LA334

From NTSB records; matched by serial number.Read NTSB report (search CAROL for ERA22LA334)

Incident · minor damage

Jul 4, 2010 · Dayton, OH

The unintentional movement of the jettison handle in-flight due to the pilot’s dropping of a manual that impacted the handle and released the door window, which then impacted the horizontal stabilizer. Contributing to the accident was the jettison handle guard not being installed by maintenance personnel.

Damage
Minor
Injuries
None
Report
CEN10IA372

From NTSB records; matched by serial number.Read NTSB report (search CAROL for CEN10IA372)

Accident history for this model

ADs published since 1998 that may apply (9)

These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.

ADSubjectEffectiveApplies to
2021-13-08Fuel Control/ Turbine EnginesAug 19, 2021Engine (ARRIEL 2C)
2021-13-19Airbus HelicoptersAug 17, 2021Airframe (AS365N3)Only with: Except helicopters with Eurocopter MOD 53C17 or MOD 53D02, or Airbus Helicopters MOD 07 53D21 or MOD 07 53D22, installed.
2021-05-08Engine BMEP/ Torque IndicatingApr 15, 2021Engine (ARRIEL 2C)
2016-25-13Safran Helicopter Engines, S.A. (Formerly Turbomeca S.A.) Turboshaft EnginesFeb 3, 2017Engine (ARRIEL 2C)Only with: Engine accessory gearbox (AGB) P/N 0292120650 with a machined front casing installed.
2016-03-02Turbomeca S.A. Turboshaft EnginesMar 15, 2016Engine (ARRIEL 2C)Only with: Engines with modification TU34 or TU34A installed.
Show all 9 ADs
ADSubjectEffectiveApplies to
2015-13-04Turbomeca S.A. Turboshaft EnginesSep 1, 2015Engine (ARRIEL 2C)
2014-12-05Turbomeca S.A. Turboshaft EnginesAug 4, 2014Engine (ARRIEL 2C)
2013-08-17Eurocopter France HelicoptersJun 5, 2013Airframe (AS365N3)
2010-23-02Eurocopter France (Eurocopter) Model SA-365N, SA-365N1, AS-365N2, and AS 365 N3…Nov 22, 2010Airframe (AS365N3)Only with: Horizontal stabilizer P/N 365A13-3030-1901, -1902, -1903, -1904, -1905, -1906, -1908, -1909; 365A13-3036-00, -0001, -0002, -0003; or 365A13-3038-00 installed.

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (8)

Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.

  • Navigation · transceiver · faultedSep 24, 2021

    PILOT SMELLED UNKNOWN FUMES COMING FROM REAR OF AIRCRAFT. WAS COMING IN TO LAND AT MIAMI VALLEY HOSPITAL AND DIFERTED TO MORAINE AIRPARK (OUR MAINTENANCE HANGAR). UPON INSPECTION I FOUND THE #1 NAV RADIO TO HAVE A BURNT ELECTRICAL SMELL COMING FROM IT. CAPPED AND STOWED WIRES AND MEL'D THE SYSTEM.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Engine · compressor · leakingFeb 9, 2012

    CLIMB OUT FROM A SIMULATED ENGINE FAIL USING THE TRAINING SWITCH IN A SA365. SMOKE AND FUMES IN THE COCKPIT PREDOMINATELY ON COPILOT SIDE. NOTICED THE HEAT LEVER WAS SLIGHTLY FORWARD SHUTOFF, SMOKE AND FUMES REDUCED AND WENT AWAY. RETURNED TO FIELD AND LANDED. FOUND OIL LEAKING FROM SPLIT LINE OF…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · frame · crackedNov 10, 2011

    THE MECHANIC WAS PERFORMING AN AIRWORTHINESS INSP AND FOUND A CRACK ON THE CANOPY FRAME AT THE TOP OF THE PILOTS DOOR OPENING APPROX 5 IN FWD OF THE 14 DEGREE FRAME. THE CRACK PROPOGATES THROUGH 2 ANCHOR NUT HOLES FOR THE INTERIOR TRIM AND GREENHOUSE WINDOW. THE MECHANIC IS WORKING WITH AEC FOR AN…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 8 reports
  • Engine fuel and control · b-nut · leakingFeb 25, 2011

    THE PILOT SMELLED FUEL IN THE COCKPIT SHORTLY AFTER TAKEOFF. IMMEDIATELY RETURNED TO THE BASE AND HAD MECHANIC INSPECT THE AIRCRAFT. MECHANIC DID FIND A LOOSE B-NUT THAT WAS LEAKING ON THE FUEL RETURN LINE FOR THE NR 2 ENGINE. THE MECHANIC TIGHTENED THE B-NUT, PERFORMED A GROUND RUN TO CHECK FOR…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Windows · window · departedJul 4, 2010

    DEPARTED, AROUND 0309 LOCAL, HEARD A LOUD BANG. FLT NURSE STATED WE LOST WINDOW. CALLED COMMS CTR & SAID WE WERE ABORTING & LANDING. COMMS CTR INITIATED THE PIAP. CALLED SAFE ON DECK . COMMS CTR CALLED APPROACH & STATED WE WERE DOWN & SAFE. CALLED COMMS CENTER TO CONFIRM SAFE ON DECK. OBSERVED…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Engine · line · burnedOct 4, 2007

    UPON SHUTDOWN, PILOT SMELLED SMOKE, SAW SMOKE COMING FROM NR1 ENGINE, OPENED COWLING SAW SMALL FIRE ON STARTER GENERATOR, RAN BACK TO COCKPIT ACQUIRED THE HANDHELD FIRE EXTINGUISHER, AND PUT FIRE OUT. DISCOVERED A BRAIDED OIL VENT LINE CAME IN CONTACT WITH THE TERMINAL ON THE STARTER GENERATOR…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Engine · turbine wheel · damagedJan 11, 2007

    DURING MAINTENANCE GROUND RUNS, STARTED NR 1 ENGINE AND NR 2 ENGINES TO PERFORM REQUIRED MAINTENANCE CHECKS AFTER INSPECTION OF AIRCRAFT AND ENGINES. SHUTDOWN ENGINES TO MAKE TAILROTOR BLADE WEIGHT CHANGE. ATTEMPTED TO START NR 1 ENGINE AND IT WOULD NOT TURN. ATTEMPTED TO MANUALLY ROTATE…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Engine · turbine wheel · damagedJan 11, 2007

    DURING MAINTENANCE GROUND RUNS, STARTED NR 1 ENGINE AND NR 2 ENGINES TO PERFORM REQUIRED MAINTENANCE CHECKS AFTER INSPECTION OF AIRCRAFT AND ENGINES. SHUTDOWN ENGINES TO MAKE TAILROTOR BLADE WEIGHT CHANGE. ATTEMPTED TO START NR 1 ENGINE AND IT WOULD NOT TURN. ATTEMPTED TO MANUALLY ROTATE…

    From FAA Service Difficulty Reports; matched by N-number and serial number.

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 16, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 16, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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