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Aircraft record

N411DE1991 Bell 412

Registration validUnclaimedSource: FAA, updated Oct 18, 2026

Safety record in brief:No NTSB accidents or incidents since 198221 ADs may apply4 service difficulty reports

Registration
Valid
expires Apr 30, 2028
Based in
Las Vegas, NV
owner city / state
Engine
PT6T-3 SERIES · 900 hp
P&W Canada
Owners
1
since 1993
NTSB events
None
since 1982
ADs may apply
21
confirm with A&P
Service reports
4
since 1995

Registration

FAA Aircraft Registry · Oct 18, 2026
Registered owner
U S Department Of Energy
Owner type
Government
City, state
Las Vegas, NV
Certificate issued
Sep 27, 1993
Expires
Apr 30, 2028
Airworthiness
Multiple · Standard, Restricted, Other
Airworthiness date
Jun 27, 1994

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
1991
Serial number
36030
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
A4D827

Engine

Make and model
P&W Canada Pt6t-3 Series
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. 1993 – nowU S Department Of EnergyLas Vegas, NV · current

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 (0)

No NTSB accidents or incidents found for this airframe since 1982.

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 (4)

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.

  • Electrical power · wire · deterioratedJun 21, 1999

    DURING PERFORMANCE OF A 300 HOUR/180 DAY INSPECTION, NOTED NUMEROUS AREAS IN THE ENGINE COMPARTMENT AND IN THE MAIN TRANSMISSION AREA WHERE THE 'YELLOW' COLORED WIRING INSULATION WAS CRACKED, SPLIT, AND FALLING OFF THE WIRING. FURTHER INVESTIGATION REVEALED THIS WAS THE CASE THROUGHOUT ALL THE…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Main rotor · splindle · failedOct 23, 1998

    DURING FLIGHT, PILOTS NOTED HELICOPTER HAD SUDDENLY DEVELOPED A VERTICAL AND LATERAL 'SHUFFLE' VIBRATION. UPON LANDING, MAINT INSPECTED ROTOR SYSTEM. THE MAIN ROTOR SPINDLE LASTOMERIC DAMPER BEARING ASSY ON THE 'RED' BLADE SPINDLE ASSY WAS FOUND SEPARATED FROM THE INNER BEARING SLEEVE. A NEW…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Rotor flight controls · bolt · corrodedAug 12, 1998

    DURING A 300-HOUR INSPECTION, DISCOVERED ONE OF THE BOLTS IN THE 'BOOSTED CYCLIC' CONTROL SYSTEM WAS WORN AND NEEDED TO BE REPLACED. A NEW BOLT, P/N 212-001-323-001, WAS DRAWN OUT OF SPARES SUPPLY TO REPLACE THE WORN ITEM. UPON OPENING THE SEALED PACKAGE, NOTICED WHAT APPEARED TO BE ETCHING OR…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 4 reports
  • Main rotor drive · flange · mismanufacturedJan 30, 1998

    RECEIVED A REPLACEMENT PART FROM BELL HELICOPTER FOR THE ROTOR BRAKE QUILL. THE REPLACEMENT FLANGE, PN 209-040-177-101, DID NOT HAVE THE SAME APPEARANCE IN THE SEAL CONTACT AREA AS THE REMOVED, IDENTICAL PART NUMBER ITEM. THE 'NEW' FLANGE APPEARS TO HAVE BEEN PASSED THROUGH THE FINAL INSPECTION…

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

Related aircraft

Show all 8 related aircraft
All 11 registered Bell 412 aircraft

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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