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Type Record · As of May 3, 2026

MCDONNELL DOUGLAS HELICOPTER 500N

Rotorcraft · ALLISON 250-C20 SER

Registered

27

Year Range

1992–1998

NTSB Events

3

Airworthiness Directives

18

Aircraft Resources

Engine · Rolls-Royce M250 (Allison) → Search FAA TCDS →

01 /  Distribution

Where the fleet lives and was built

Counts of currently-registered MCDONNELL DOUGLAS HELICOPTER 500N aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.

By State (top 10)

  • HI 25.9% 7
  • AZ 11.1% 3
  • DE 11.1% 3
  • AL 11.1% 3
  • GA 7.4% 2
  • NV 7.4% 2
  • OR 7.4% 2
  • WV 3.7% 1
  • OH 3.7% 1
  • FL 3.7% 1

+2 more states

By Decade of Manufacture

  • 1990s 77.8% 21
  • Unknown 22.2% 6

02 /  NTSB Records

Events involving MCDONNELL DOUGLAS HELICOPTER 500N aircraft

3 event(s) on file. Showing the most recent 3.

03 /  Airworthiness Directives

FAA directives applicable to MCDONNELL DOUGLAS HELICOPTER 500N

18 directive(s) on file. Showing the most recent 18.

  • Jun 21, 2006

    Airworthiness Directives; Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) 250-B and 250-C Series Turboprop and Turboshaft Engines

    The FAA is adopting a new airworthiness directive (AD) for Rolls-Royce Corporation 250-B and 250-C series turboprop and turboshaft engines with certain part numbers (P/Ns) of gas producer rotor assembly tie bolts manufactured by EXTEX Ltd., Pacific Sky Supply Inc., Rolls- Royce Corporation (RRC), and Superior Air Part…

    Atlas AD → Federal Register ↗

  • Nov 10, 2005

    Airworthiness Directives; Rolls-Royce Corporation (formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) 250-B and 250-C Series Turboprop and Turboshaft Engines

    The FAA proposes to adopt a new airworthiness directive (AD) for Rolls-Royce Corporation 250-B and 250-C series turboprop and turboshaft engines with certain part numbers (P/Ns) of gas producer rotor assembly tie bolts manufactured by EXTEX Ltd., Pacific Sky Supply Inc., Rolls-Royce Corporation (RRC), and Superior Air…

    Atlas AD → Federal Register ↗

  • Oct 18, 2005

    Airworthiness Directives; Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) (RRC) 250-B and 250-C Series Turboshaft and Turboprop Engines

    The FAA proposes to supersede an existing airworthiness directive (AD) for certain RRC 250-B and 250-C series turboshaft and turboprop engines. That AD currently requires a onetime inspection of the fuel nozzle screen for contamination, and if contamination is found, inspection and cleaning of the entire aircraft fuel…

    Atlas AD → Federal Register ↗

  • Dec 1, 2004

    Airworthiness Directives; Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) (RRC) 250-B and 250-C Series Turboshaft and Turboprop Engines

    The FAA is adopting a new airworthiness directive (AD) for certain RRC 250-B and 250-C series turboshaft and turboprop engines. This AD requires a onetime inspection of the fuel nozzle screen for contamination, and if contamination is found, inspection and cleaning of the entire aircraft fuel system before further fli…

    Atlas AD → Federal Register ↗

  • May 7, 2004

    Airworthiness Directives; Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) (RRC) 250-B and 250-C Series Turboshaft and Turboprop Engines

    The FAA proposes to adopt a new airworthiness directive (AD) for certain RRC 250-B and 250-C series turboshaft and turboprop engines. This proposed AD would require a one-time inspection of the fuel nozzle screen for contamination, and if contamination is found, inspection and cleaning of the entire aircraft fuel syst…

    Atlas AD → Federal Register ↗

  • Feb 20, 2003

    Airworthiness Directives; NARCO Avionics Inc. AT150 Transponders

    The Federal Aviation Administration (FAA) proposes to adopt a new airworthiness directive (AD) that is applicable to certain serial numbers (SN's) of NARCO Avionics Inc. AT150 transponders. This proposal would require modification to the transponder by adding a resistor and transistor to the circuit board. This propos…

    Atlas AD → Federal Register ↗

  • Apr 25, 2000

    Airworthiness Directives; Allison Engine Company 250-C18 and -C20 Series Turboshaft Engines

    This document proposes to adopt a new airworthiness directive (AD), applicable to Allison Engine Company 250-C18 and -C20 series turboshaft engines. This proposal would require a one-time visual inspection of the fuel nozzle screen for contamination. If contamination is found, this proposal would require, prior to fur…

    Atlas AD → Federal Register ↗

  • May 21, 1999

    Airworthiness Directives; McDonnell Douglas Helicopter Systems (MDHS) Model 369E, 369FF, 500N, and 600N Helicopters

    Atlas AD → Federal Register ↗

  • Apr 6, 1999

    Airworthiness Directives; McDonnell Douglas Helicopter Systems (MDHS) Model 369E, 369FF, 500N, and 600N Helicopters

    This amendment supersedes an existing priority letter airworthiness directive (AD) 98-17-14, applicable to MDHS Model 369E, 369FF, 500N, and 600N helicopters, that currently requires, within the next 14 calendar days, inspecting each relay receptacle contact socket for correct size of the contact socket holes and repl…

    Atlas AD → Federal Register ↗

  • Dec 3, 1998

    Airworthiness Directives; Allison Engine Company 250-B and 250-C Series Turboshaft and Turboprop Engines

    This amendment adopts a new airworthiness directive (AD), applicable to certain Allison Engine Company 250-B and 250-C series turboshaft and turboprop engines, that requires replacing existing beryllium copper main fuel control (MFC) bellows assemblies with Inconel 718 stainless steel welded MFC bellows assemblies. Th…

    Atlas AD → Federal Register ↗

  • Oct 7, 1998

    Airworthiness Directives; McDonnell Douglas Helicopter Systems Model 369D, 369E, 369FF, 500N, AH-6, and MH-6 Helicopters

    This amendment adopts a new airworthiness directive (AD) that is applicable to McDonnell Douglas Helicopter Systems (MDHS) Model 369D, 369E, 369FF, 500N, AH-6 and MH-6 helicopters. This action requires visual inspections of the overrunning clutch retainer, carrier, housing, and pin for wear from spinning of the bearin…

    Atlas AD → Federal Register ↗

  • Sep 3, 1998

    Airworthiness Directives; McDonnell Douglas Helicopter Systems Model 369A, 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, 500N, 600N, and OH-6A Helicopters

    Atlas AD → Federal Register ↗

  • Jul 23, 1998

    Airworthiness Directives; McDonnell Douglas Helicopter Systems Model 369A, 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, 500N, 600N, and OH-6A Helicopters

    This amendment supersedes an existing priority letter Airworthiness Directive (AD) 98-03-15, applicable to McDonnell Douglas Helicopter Systems (MDHS) Model 369, 369A, 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, 500N, 600N, and OH-6 helicopters that currently requires an inspection for main rotor blade (blade)…

    Atlas AD → Federal Register ↗

  • Jul 1, 1998

    Airworthiness Directives; AlliedSignal Inc. KT 76A Air Traffic Control (ATC) Transponders

    This amendment adopts a new airworthiness directive (AD) that applies to certain AlliedSignal Inc. (AlliedSignal) KT 76A ATC transponders that are installed on aircraft. This AD requires incorporating a modification on the affected transponders that consists of replacing two resistor network modules with glass-coated…

    Atlas AD → Federal Register ↗

  • Apr 21, 1998

    Airworthiness Directives; McDonnell Douglas Helicopter Systems Model 369 (YOH-6A), 369A (OH-6A), 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, and 500N Helicopters

    This amendment supersedes an existing airworthiness directive (AD), applicable to McDonnell Douglas Helicopter Systems (MDHS) Model 369 (YOH-6A), 369A (OH-6A), 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, and 369HS helicopters, that currently requires replacing overrunning clutch outer races (outer races) having certa…

    Atlas AD → Federal Register ↗

  • Feb 4, 1998

    Airworthiness Directives; AlliedSignal Aerospace KT 76A Air Traffic Control (ATC) Transponders

    This document proposes to adopt a new airworthiness directive (AD) that would apply to certain AlliedSignal Aerospace (AlliedSignal) KT 76A ATC transponders that are installed on aircraft. The proposed AD would require incorporating a modification on the affected transponders that consists of replacing two resistor ne…

    Atlas AD → Federal Register ↗

  • Jul 18, 1997

    Airworthiness Directives; McDonnell Douglas Helicopter Systems Model 369D, E, F, FF, 500N, AH-6, and MH-6 Helicopters

    This amendment adopts a new airworthiness directive (AD) that is applicable to McDonnell Douglas Helicopter Systems (MDHS) Model 369D, E, F, FF, 500N, AH-6, and MH-6 helicopters. This action requires replacement of certain transmission output drive gears (gears). This amendment is prompted by several reports of spalle…

    Atlas AD → Federal Register ↗

  • Sep 19, 1995

    Airworthiness Directives; Flight Trails Helicopters, Inc., Hardpoint Assemblies Installed on McDonnell Douglas Helicopter Systems Model 369D, 369E, 369F, 369FF, and 500N Helicopters

    This document proposes the adoption of a new airworthiness directive (AD) that is applicable to Flight Trails Helicopters, Inc. hardpoint assemblies, installed in accordance with Supplemental Type Certificate (STC) No. SH6080NM, or in accordance with Federal Aviation Administration (FAA) Form 337, ``Major Repair and A…

    Atlas AD → Federal Register ↗

04 /  Type Certificate Data Sheets

FAA TCDS for MCDONNELL DOUGLAS HELICOPTER 500N

The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.

07 /  PMA replacement parts

FAA-approved replacement parts for MCDONNELL DOUGLAS HELICOPTER 500N

2 parts on file from the FAA Parts Manufacturer Approval database. Each is a non-OEM part the FAA has authorized for use as a replacement on this aircraft type.

  • BCN200SG-K1#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199208880520221024201120.0001##

    Overhaul Hardware Kit 200SGL, 200SG Series Starter Generators

    BCN Aerospace, Inc. replaces NJ200SG-K1

    PMA holder →

  • BCN150SG-K1#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140158122420221024173134.0001##

    Overhaul Hardware Kit 150SG, 160SG Series Starter Generators

    BCN Aerospace, Inc. replaces NJ150SG-K1

    PMA holder →

04 /  Regulations watching this type

Advisory Circulars and Federal Register activity for MCDONNELL DOUGLAS HELICOPTER 500N

05 /  Aircraft of this type

All 27 registered N-numbers

Every tail currently on the FAA registry for this make/model. Click an N-number to query the FAA Aircraft Inquiry; rows flagged ● have NTSB events on file. Tails seeded with full TallyAero pages link directly.

27 of 27
N-number St Year NTSB FAA
N102CG AZ 1998 · Look up ↗
N18GH HI — ● Look up ↗
N215M WV 1997 ● Look up ↗
N301HF HI — · Look up ↗
N302HF HI 1992 · Look up ↗
N303HF HI 1994 · Look up ↗
N510PJ HI 1993 · Look up ↗
N512PJ HI 1992 · Look up ↗
N513PJ HI 1993 · Look up ↗
N520AN DE 1992 · Look up ↗
N520EA DE 1994 · Look up ↗
N520HS AL 1992 · Look up ↗
N520KY AL 1992 · Look up ↗
N520MD GA 1992 · Look up ↗
N520MG OH 1992 · Look up ↗
N520MH NV 1993 · Look up ↗
N520N NV 1992 · Look up ↗
N520NM FL 1992 · Look up ↗
N520NT OR — · Look up ↗
N523CP AZ — · Look up ↗
N527FB GA 1992 · Look up ↗
N672TS AL — · Look up ↗
N69TP DE 1994 · Look up ↗
N769KB OR 1993 · Look up ↗
N909AG AZ 1992 · Look up ↗
N952SD KS 1995 · Look up ↗
N984DT ID — · Look up ↗

Source — FAA Aircraft Registry · click "Look up" to query the live registry record (owner, address, last airworthiness)

05 /  Sources & Methodology

Every count traces back to a primary US-government source

We render counts and lists as the agency publishes them. Read the methodology →