N520GK2002 Md Helicopters INC 500N
DeregisteredUnclaimedSource: FAA, updated Oct 20, 2026
This N-number isn't registered right now. Below is its last known registration, canceled Oct 14, 2026.
Safety record in brief:No NTSB accidents or incidents since 198213 ADs may apply
- Registration
- Deregistered
Registration
FAA Aircraft Registry · Oct 20, 2026- Last registered owner
- Glacier Aviation Services INC
- Owner type
- Corporation
- City, state
- West Glacier, MT
- Certificate issued
- Apr 30, 2019
- Canceled
- Oct 14, 2026
- Airworthiness
- Standard · Normal
- Airworthiness date
- Apr 16, 2002
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 dataAirframe
- Manufacturer
- Md Helicopters INC
- Model
- 500N
- Year
- 2002
- Serial number
- LN097
- Aircraft type
- Rotorcraft
- Category
- Land
- Certification
- Type Certificated
- Seats
- 4
- Engines
- 1
- Max takeoff weight
- 12,500 - 19,999 lb
- Type certificate data sheet
- H3WE
- Mode S code
- A6898E
Engine
- Make and model
- Allison 250-C20 Ser
- Type
- Turbo-shaft
- Power
- 420 hp
Total time and engine hours aren't public. They appear here once the owner adds logbooks.
Ownership history
Ownership history from FAA records- 2019 – 2026Glacier Aviation Services INCWest Glacier, MT
Individual owners are shown by city and state only.
Safety record
NTSB · Oct 15, 2026 · FAA ADs · Oct 20, 2026 · SDRs · Oct 16, 2026NTSB events (0)
No NTSB accidents or incidents found for this airframe since 1982.
Accident history for this modelADs published since 1998 that may apply (13)
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.
| AD | Subject | Effective | Applies to |
|---|---|---|---|
| 2021-22-11 | MD Helicopters Inc. (MDHI) Helicopters | Jan 10, 2022 | Airframe (500N)Only with: Pilot-to-copilot tail rotor torque tube P/N 369H7531-9, -11, or -13 installed. |
| 2020-18-20 | MD Helicopters Inc. (MDHI), Helicopters | Oct 28, 2020 | Airframe (500N)Only with: With MR blade P/N 500P2100-105, 500P2100-305, 500P2300-505, 369D21120-505, 369D21121-505, or 369D21123-505 having a 1.25 inch chord nickel abrasion strip manufactured or installed by HTC or of unknown manufacturer, with less than 700 hours TIS on the abrasion strip. |
| 2019-05-04 | MD Helicopters, Inc. (MDHI), Helicopters | Apr 17, 2019 | Airframe (500N)Only with: Main rotor blade P/N 369A1100, 369D21100, 369D21102, 369D21120, 369D21121, 369D21123, 500P2100, or 500P2300, all dash numbers, installed. |
| 2016-04-15 | MD Helicopters Inc., Helicopters | Mar 31, 2016 | Airframe (500N)Only with: Aerometals main rotor blade attach pin P/N 369X1004-5 installed. |
| 2016-01-19 | MD Helicopters Inc. | Feb 25, 2016 | Airframe (500N)Only with: Model 500N with rotating cone assembly P/N 500N3740-81 installed; Model 600N with rotating cone assembly P/N 500N3740-71 installed. |
Show all 13 ADsShow fewer ADs
| AD | Subject | Effective | Applies to |
|---|---|---|---|
| 2013-03-03 | MD Helicopters, Inc., Helicopters | Mar 15, 2013 | Airframe (500N)Only with: Models 500N and 600N with NOTAR fan blade T-T strap P/N 500N5311-5 installed; Model MD900 with T-T strap P/N 500N5311-5, 900R3442009-101, 900R3442009-103, or 900R6442009-103 installed. |
| 2008-22-52 | MD Helicopters, Inc. Model 500N and 600N Helicopters | Dec 15, 2008 | Airframe (500N)Only with: YSAS adapter tube P/N 500N7218-1 installed, excluding adapter tubes that have a production date code stamp. |
| 2006-16-04 | Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division… | Sep 7, 2006 | Engine (250-C20 SER) |
| 2006-13-06 | Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division… | Jul 26, 2006 | Engine (250-C20 SER)Only with: Engines with gas producer rotor assembly tie bolt P/Ns A23008020, E23008020 (EXTEX), 23008020, 6843388, 6876991 (RRC), A23008020 (SAP), or 23008020P (Pacific Sky Supply) installed. |
| 2005-21-02 | MD Helicopters, Inc. Model 369D, 369E, 369F, 369FF, 500N, and 600N Helicopters | Nov 1, 2005 | Airframe (500N)Only with: With an MDHI main rotor blade installed, or modified per HTC STC No. SR09172RC, SR09074RC, or SR01050LA with an HTC blade installed, as listed in the AD table by part number. |
| 2005-10-13 | Rolls-Royce Corporation (Formerly Allison Engine Company) 250-B17B, -B17C, -B17D, -B17E… | Jun 22, 2005 | Engine (250-C20 SER)Only with: Engines that do not have turbine energy absorbing ring RRC P/N 23035175, or an equivalent FAA-approved serviceable ring, installed. |
| 2000-08-22 | MD Helicopters Inc. Model 369D, 369E, 500N, and 600N Helicopters | May 22, 2000 | Airframe (500N)Only with: Analog/digital TOT indicator P/N 369D24513-1 installed (369D, 369E, 500N) or P/N 9A3420 installed (600N). |
| 99-20-12 | MD Helicopters Inc. Model 369D, D369E, 369FF, 500N, and 600N Helicopters | Nov 4, 1999 | Airframe (500N)Only with: Oil cooler blower bracket P/N 369F5190-1 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 (0)
No Service Difficulty Reports found for this airframe since 1995.
Sources
- FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 20, 2026
- NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
- FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 20, 2026
- FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026