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Aircraft record

N405LN1981 Bell 412

DeregisteredUnclaimedSource: FAA, updated Oct 18, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Jun 26, 2025.

Safety record in brief:1 NTSB incident (minor damage, Nov 1990)21 ADs may apply8 service difficulty reports

Registration
Deregistered
Last based in
Greenwood Village, CO
owner city / state
Owners
1
since 2012
NTSB events
1
minor, 1990
ADs may apply
21
confirm with A&P
Service reports
8
since 1995

Registration

FAA Aircraft Registry · Oct 18, 2026
Last registered owner
Air Methods LLC
Owner type
LLC
City, state
Greenwood Village, CO
Certificate issued
Jun 13, 2012
Canceled
Jun 26, 2025
Airworthiness
Standard · Transport
Airworthiness date
Apr 6, 1988

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
Bell
Model
412
Year
1981
Serial number
33025
Aircraft type
Rotorcraft
Category
Land
Certification
Type Certificated
Seats
15
Engines
2
Max takeoff weight
Up to 12,499 lb
Type certificate data sheet
H4SW
Mode S code
A4C03B

Engine

Make and model
P & W Pt6t-3b
Type
Turbo-shaft
Power
900 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. 2012 – 2025Air Methods LLCGreenwood Village, CO

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 18, 2026 · SDRs · Oct 16, 2026

NTSB events (1)

Incident · minor damage

Nov 3, 1990 · Knoxville, TN

THE PILOT'S FAILURE TO SEE AND AVOID THE WIRES PRIOR TO THE COLLISION. FACTORS IN THE INCIDENT WERE THE FAILURE OF THE GROUND PERSONNEL TO ADEQUATELY INSPECT THE LANDING ZONE, THE PRESENCE OF HIGH INTENSITY LIGHTS AT THE LZ, AND THE DARK LIGHTING CONDITIONS.

Damage
Minor
Injuries
None
Report
ATL91IA014

From NTSB records; matched by serial number.Read NTSB report (search CAROL for ATL91IA014)

Accident history for this model

ADs published since 1998 that may apply (21)

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
2024-16-01Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron, Inc.)…Sep 4, 2024Airframe (412)Only with: Models 205A, 205A-1, 205B with upper left-hand cap angle P/N 205-030-207-005 installed; Models 212, 412, 412CF, 412EP with cap angle P/N 212-030-191-001 installed.
2020-22-07Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.)…Nov 18, 2020Airframe (412)
2020-16-10Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.)…Sep 3, 2020Airframe (412)Only with: Shoulder harness seat belt comfort clip P/N D7LZ-6560286-A, D7LZ-6560286-B, or 504636-401 installed.
2020-02-11Bell Helicopter Textron Inc. HelicoptersMar 17, 2020Airframe (412)Certain serial numbers: 33001–33213; 34001–34036; 36001–36648; 36650–36657; 36660–36672; 36674–36680; …. Only with: Static inverter P/N 412-375-079-101 or 412-375-079-103 with inverter S/N 29145 or higher installed.
2019-09-02Bell Helicopter Textron, Inc. (Bell) HelicoptersJun 4, 2019Airframe (412)Only with: With engine oil check valve P/N 209-062-520-001 or fuel check valve P/N 209-062-607-001 manufactured by Circor Aerospace, marked "Circle Seal", with manufacturing date code 10/11 through 03/15, installed; except check valves marked "TQL" next to the date code.
Show all 21 ADs
ADSubjectEffectiveApplies to
2018-16-14Bell Helicopter Textron Inc., HelicoptersOct 4, 2018Airframe (412)Only with: Emergency flotation system (EFS) tube assembly P/N 412-073-820-101 with a date of manufacture before July 28, 2016, or an unknown date of manufacture installed.
2013-20-18Bell Helicopter Textron, Inc. (Bell) HelicoptersNov 29, 2013Airframe (412)Only with: Main rotor yoke assembly P/N 412-010-101-123, -127, -129, or -133 installed (Models 412/412EP); P/N 412-010-101-127 or -129 installed (Model 412CF).
2013-16-16Agusta S.p.A. and Bell Helicopter Textron HelicoptersSep 17, 2013Airframe (412)Only with: DART Aerospace Ltd. high gear aft crosstube P/N D412-664-203 installed under STC No. SR01298NY.
2013-15-02Bell Helicopter Textron HelicoptersAug 14, 2013Airframe (412)Only with: Tail rotor blade assembly P/N 210-010-001-(all dash numbers) or 212-010-750-(all dash numbers) installed.
2013-05-14Bell Helicopter Textron, Inc.Apr 26, 2013Airframe (412)Only with: Swashplate outer ring assembly P/N 412-010-407-105 installed.
2012-22-11Bell Helicopter Textron HelicoptersDec 20, 2012Airframe (412)Certain serial numbers: 412 33001–33213; 412 34001–34036; 412 36001–on; 412EP 33001–33213; 412EP 34001–34036; 412EP 36001–on; …. Only with: With a collective lever P/N 412-010-408-101 installed.
2012-22-06Aeronautical Accessories, Inc., High Landing Gear Forward Crosstube AssemblyDec 14, 2012Airframe (412)Only with: Aeronautical Accessories, Inc. high landing gear forward crosstube assembly P/N 212-321-103 installed
2012-11-13Aeronautical Accessories, Inc., High Landing Gear Aft Crosstube AssemblyJul 30, 2012Airframe (412)Only with: Aeronautical Accessories, Inc. High Landing Gear Aft Crosstube Assembly P/N 412-321-104 or P/N 412-321-304 installed.
2011-12-08Bell Helicopter Textron, Inc. Model 205A, 205A-1, 205B, 212, 412, 412CF, and 412EP…Jul 5, 2011Airframe (412)Only with: Tail rotor blade P/N 212-010-750 (all dash numbers) installed, all blade S/Ns except those with prefix "A" and number 17061 or larger.
2010-10-16Bell Helicopter Textron (Bell) Model 205A, 205A-1, 205B, 212, 412, 412EP, and 412CF and…Jun 8, 2010Airframe (412)Only with: AAI Low Skid Landing Gear Forward Crosstube P/N 212-320-103 with S/N prefix "AA" and S/N 574 through 628 installed.
2007-19-53Bell Helicopter Textron, Inc. Model 204B, 205A, 205A-1, 205B, 210, 212, 412, 412EP, and…Dec 5, 2007Airframe (412)Only with: Applies only with a tail rotor blade installed having one of these P/N and S/N: 204-011-702-015 (AFS-12703, AFS-12893, AFS-23525, AFS-23573); 204-011-702-121 (A-22020); 212-010-750-105FM (A-10090, A-10836, A-11207, A-11332); 212-010-750-113 (A-14953, A15090, CS-12702); 212-010-750-113FM (A-12240, A-12296, A-12640, A-12670, A-12789, A-13033, A-13096, A-13134, A-13199, A-13264, A-13366); 212-010-750-133 (A15602).
2002-09-04Bell Helicopter Textron, Inc. Model 205A, 205A-1, 205B, 212, 412, 412EP, and 412CF…Jun 7, 2002Airframe (412)Only with: Tail rotor blade P/N 212-010-750-009, -011, -105, -107, -109, or -111 installed, with blade S/N prefix ATR or A3, or prefix A with number less than or equal to 11529.
2001-13-01Bell Helicopter Textron, Inc. Model 205A-1, 205B, 212, 412, 412EP, and 412CF HelicoptersAug 1, 2001Airframe (412)
2001-09-11Bell Helicopter Textron, Inc. Model 412 Helicopters and Agusta S.p.A. Model AB412…Jun 11, 2001Airframe (412)Only with: Tail rotor yoke assembly P/N 212-011-702 (all dash numbers) installed.
99-23-23Bell Helicopter Textron, Inc. Model 412, 412EP and 412CF HelicoptersDec 1, 1999Airframe (412)Certain serial numbers: 412 33001–33213; 412 34001–34036; 412 36001–36204; 412EP 33001–33213; 412EP 34001–34036; 412EP 36001–36204; …. Only with: Main rotor yoke assembly P/N 412-010-101-123 or 412-010-101-127 installed.
97-11-04Bell Helicopter Textron, Inc. Model 412 and 412EP HelicoptersMay 20, 1997Airframe (412)Only with: Main rotor mast P/N 412-040-101-105, -109, -117, -121, -125, -127, or -129 and main rotor spline plate P/N 412-010-167-105 or 412-010-177-101, -105, -109, -113, or -117 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.

  • Fuselage · panel · delaminatedMar 27, 2019

    R/H TAILBOOM PANEL P/N 205 032 811 077 OUTER SKIN DELAMINATED APPROX. 24” X 3.5” BETWEEN BOOM STATIONS 77-101 WL 72.L/H TAILBOOM PANEL P/N H205 032 813 67 OUTER SKIN DELAMINATED APPROX. 15” X 2.75” BETWEEN BOOM STATIONS 73-88. ALSO PANEL HAS CORROSION ALONG TOP EDGE WORST SPOT IS 1” HOLE THRU SKIN…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · skin · crackedMar 22, 2016

    AT SHIFT CHANGE, DURING PRE-FLIGHT OF ACFT NOTED A CRACK IN SKIN ON RT SIDE OF VERTICAL FIN IN THE SHAPE OF A BACKWARD C OF ABOUT 5 INCHES, AFTER MEASUREMENT POSSIBLY THROUGH 2 RIVET LOCATIONS.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · mount · crackedDec 2, 2010

    CRACK IN OIL COOLER MOUNT FRAME, BRACKET AND DOUBLER THAT HAD BEEN PREVIOUSLY INSTALLED.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 8 reports
  • Fuselage · skin · crackedOct 26, 2010

    CRACK IN TAIL BOOM SKIN AND DOUBLER AT RT TAIL ROTOR FLOOD LIGHT. TAIL ROTOR FLOOD LIGHTS WERE INSTALLED ON FAA FORM 337, DATED 6 APRIL 1988.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · bulkhead · crackedOct 22, 2010

    TAILBOOM BULKHEAD AT BOOM STA 122.33 CRACKED AT INTERSECTIONS OF RT STRINGERS (2) AND LT LOWER LONGERON.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · rib · crackedOct 22, 2010

    TAILBOOM RIB AT BOOM STA 138 CRACKED 1.05" AT TOP.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Fuselage · bulkhead · crackedOct 22, 2010

    TAILBOOM BULKHEAD AT BOOM STA 164.23 CRACKED AT LOWER RT STR, LOWER RT LONGERON (2), LOWER LT LONGERON (2)AND UPPER LT LONGERON.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Hydraulic power · line · leakingOct 4, 2008

    RECEIVED A MASTER CAUTION LIGHT WITH AN ASSOCIATED HYD CAUTION LIGHT. NR 2 HYD PRESSURE GAUGE INDICATED 0 PRESSURE. REFERRED TO CHECKLIST AND MANEUVERED ACFT FOR LANDING. AFTER COMPLETING ALL IMMEDIATE ACTION AND CHECKLIST STEPS, WEATHER, TERRAIN AND DISTANCE TO NEAREST FACILITY CONSIDERED, WE…

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

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 18, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 18, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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