# Bell 412 - Type: Aircraft model (FAA registry) - Registry code: 1182202 - Manufacturer (registry): BELL - Model: 412 - Aircraft type: Rotorcraft - Engines: 2 - Seats: 15 - Data sheet: TCDS H4SW - Registered aircraft: 11 - Page: https://openairdocs.org/model/bell-412 ## ADs that may apply - [AD 2026-08-10](https://openairdocs.org/ad/2026-08-10): Passenger compartment equipment · B/E Aerospace Fischer Medical Seat 230/305, EC135P1, EC135T1 and 19 more. Effective May 11, 2026 - [AD 2025-07-01](https://openairdocs.org/ad/2025-07-01): Air Data Computer · Synthetic Vision Electronic Flight Information System (Arrow STC SR09595RC or ST01523WI). Effective May 15, 2025 - [AD 2024-20-07](https://openairdocs.org/ad/2024-20-07): Emergency Equipment; Emergency Flotation Section · Apical Emergency Float Kit, P/N 20498 (STC SR00780LA or 12 others). Effective Dec 5, 2024 - [AD 2024-16-19](https://openairdocs.org/ad/2024-16-19): Rotorcraft Tail Boom · Bell Textron 212, 412CF, 412 and 1 more. Effective Nov 8, 2024 - [AD 2024-16-01](https://openairdocs.org/ad/2024-16-01): Fuselage structure · Bell Textron 205A, 205A-1, 205B and 4 more. Effective Sep 4, 2024 - [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07): Ground Proximity System · Airbus Helicopters 47, 206, 210 and 237 more. Effective Jun 22, 2023 - [AD 2022-20-14](https://openairdocs.org/ad/2022-20-14): Main Rotor Gearbox · Bell Textron 204B, 205A, 205A-1 and 20 more. Effective Dec 27, 2022 - [AD 2022-22-12](https://openairdocs.org/ad/2022-22-12): Nose/Tail Landing Gear Structure/Axle · Replacement crosstubes P/N D212-664 (Dart Aerospace STC SR01298NY). Effective Nov 22, 2022 - [AD 2022-11-19](https://openairdocs.org/ad/2022-11-19): Aircraft Fuel System, Engine Oil System (Airframe) · Bell Textron 212, 412, 412CF and 1 more. Effective Jul 6, 2022 - [AD 2022-07-02](https://openairdocs.org/ad/2022-07-02): Rotorcraft Tail Boom · Bell Textron 205A, 205A-1, 205B and 5 more. Effective May 9, 2022 - [AD 2022-07-03](https://openairdocs.org/ad/2022-07-03): Flight Control System · Bell Textron 412, 412EP and 412CF. Effective Apr 27, 2022 - [AD 2022-05-10](https://openairdocs.org/ad/2022-05-10): Cabin Equipment/Furnishings · Airbus Helicopters AS332L, AS332L1, AS332L2 and 57 more. Effective Apr 20, 2022 - [AD 2020-22-07](https://openairdocs.org/ad/2020-22-07): Nacelle/Pylon Structure · Bell Textron 412, 412CF and 412EP. Effective Nov 18, 2020 - [AD 2020-16-10](https://openairdocs.org/ad/2020-16-10): Cabin Equipment/Furnishings · Bell Textron 204B, 205A, 205A-1 and 7 more. Effective Sep 3, 2020 - [AD 2020-12-10](https://openairdocs.org/ad/2020-12-10): Tail Rotor Blades · Bell Textron 205A, 205A-1, 205B and 4 more. Effective Jul 16, 2020 - [AD 2020-02-11](https://openairdocs.org/ad/2020-02-11): Inverter · Bell Helicopter Textron 412 and 412EP. Effective Mar 17, 2020 - [AD 2019-09-02](https://openairdocs.org/ad/2019-09-02): 7900 Engine Oil System and 2800 Aircraft Fuel System · Bell Helicopter Textron 212, 412, 412CF and 1 more. Effective Jun 4, 2019 - [AD 2018-16-14](https://openairdocs.org/ad/2018-16-14): Emergency Flotation Section · Bell Helicopter Textron 212, 412 and 412EP. Effective Oct 4, 2018 - [AD 2013-20-18](https://openairdocs.org/ad/2013-20-18): Main Rotor Head · Bell Helicopter Textron 412, 412CF and 412EP. Effective Nov 29, 2013 - [AD 2013-16-16](https://openairdocs.org/ad/2013-16-16): Main Landing Gear Strut/Axle/Truck · Replacement crosstubes P/N D212-664 (Dart Aerospace STC SR01298NY). Effective Sep 17, 2013 - [AD 2013-15-02](https://openairdocs.org/ad/2013-15-02): Tail Rotor Blades · Bell Helicopter Textron 205A, 205A-1, 205B and 5 more. Effective Aug 14, 2013 - [AD 2013-06-51](https://openairdocs.org/ad/2013-06-51): Equipment/Furnishings · Agusta A109, A109A, A109A II and 43 more. Effective Jul 15, 2013 - [AD 2013-05-14](https://openairdocs.org/ad/2013-05-14): Main Rotor Mast/Swashplate · Bell Helicopter Textron 412 and 412EP. Effective Apr 26, 2013 - [AD 2013-01-04](https://openairdocs.org/ad/2013-01-04): Main Landing Gear · Bell Helicopter Textron 412 and 412EP. Effective Mar 11, 2013 - [AD 2012-22-11](https://openairdocs.org/ad/2012-22-11): Main Rotor · Bell Helicopter Textron 412, 412CF and 412EP. Effective Dec 20, 2012 - [AD 2012-22-06](https://openairdocs.org/ad/2012-22-06): High Landing Gear Forward Crosstube Assembly · Aeronautical Accessories AB412, AB412 EP, 205A and 7 more. Effective Dec 14, 2012 - [AD 2012-11-13](https://openairdocs.org/ad/2012-11-13): High Landing Gear Aft Crosstube Assembly · Aeronautical Accessories AB412, AB412 EP, 412 and 3 more. Effective Jul 30, 2012 - [AD 2011-25-01](https://openairdocs.org/ad/2011-25-01): Liferafts · Agusta AB412, AB412 EP, 206A and 23 more. Effective Jan 17, 2012 - [AD 2010-26-52](https://openairdocs.org/ad/2010-26-52): Tail Rotor Blade · Bell Helicopter Textron 204B, 205A, 205A-1 and 6 more. Effective Nov 15, 2011 - [AD 2010-10-16](https://openairdocs.org/ad/2010-10-16): Crosstube · Agusta AB412, AB412 EP, 205A and 6 more. Effective Jun 8, 2010 - [AD 2007-22-02](https://openairdocs.org/ad/2007-22-02): Tail rotor blade (blade) forward tip weight retention block (tip block) and the aft tip closure (tip closure) · Bell Helicopter Textron 205A, 205A-1, 205B and 4 more. Effective Nov 30, 2007 - [AD 2005-20-38](https://openairdocs.org/ad/2005-20-38): Reservoir assembly adapter (adapter) · Bell Helicopter Textron 212, 412 and 412EP with STC SH2820SO. Effective Oct 28, 2005 - [AD 2001-22-14](https://openairdocs.org/ad/2001-22-14): Fire Extinguishing System Bottle Cartridges · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 105 more. Effective Dec 10, 2001 - [AD 2001-13-01](https://openairdocs.org/ad/2001-13-01): Tail Rotor Counterweight Bellcrank (bellcrank) Retention Nut (retention nut) · Bell Helicopter Textron 205A-1, 205B, 212 and 3 more. Effective Aug 1, 2001 - [AD 2001-09-11](https://openairdocs.org/ad/2001-09-11): Tail Rotor Yoke · Agusta AB412, AB412 EP, 412 and 2 more. Effective Jun 11, 2001 - [AD 2001-08-04](https://openairdocs.org/ad/2001-08-04): Main Rotor Actuator · Bell Helicopter Textron 205A-1, 205B, 212 and 3 more. Effective May 3, 2001 - [AD 99-23-23](https://openairdocs.org/ad/99-23-23): Measure Yolk Inspection · Bell Helicopter Textron 412, 412CF and 412EP. Effective Dec 1, 1999 - [AD 97-11-04](https://openairdocs.org/ad/97-11-04): Mast And Spline Plate · Bell Helicopter Textron 412 and 412EP. Effective Jun 24, 1997 - [AD 97-07-06](https://openairdocs.org/ad/97-07-06): Swashplate Support Assembly · Bell Helicopter Textron 412. Effective May 9, 1997 - [AD 94-18-09](https://openairdocs.org/ad/94-18-09): Main Transmission Lower Planetary Spider · Bell Helicopter Textron 205A, 205A-1, 205B and 2 more. Effective Oct 14, 1994 - [AD 93-17-12](https://openairdocs.org/ad/93-17-12): Main Rotor Transmission Lower Planetary Spider · Bell Helicopter Textron 204B, 205A, 205A-1 and 3 more. Effective Jul 29, 1994 - [AD 93-02-07](https://openairdocs.org/ad/93-02-07): Vertical Fin Spar · Bell Helicopter Textron 412. Effective Mar 22, 1993 - [AD 92-13-10](https://openairdocs.org/ad/92-13-10): Tail Rotor Driveshaft Hanger Bearing · Bell Helicopter Textron 204B, 205A, 205A-1 and 3 more. Effective Feb 23, 1993 - [AD 92-09-05](https://openairdocs.org/ad/92-09-05): Torque Adapter · Bell Helicopter Textron 212 and 412. Effective Jun 2, 1992 - [AD 90-03-09](https://openairdocs.org/ad/90-03-09): T/R Hub Assembly (See 90-03-09) · Bell Helicopter Textron 205A, 205A-1, 212 and 1 more. Effective Feb 13, 1990 - [AD 89-08-05](https://openairdocs.org/ad/89-08-05): Transmission Internal Sump Oil Filter · Bell Helicopter Textron 204B, 205A, 205A-1 and 2 more. Effective Jan 3, 1990 - [AD 85-07-01](https://openairdocs.org/ad/85-07-01): Main Rotor Pitch Horn · Bell Helicopter Textron 412. Effective Apr 10, 1985 - [AD 82-26-51 R1](https://openairdocs.org/ad/82-26-51-R1): Yoke Assemblies Service Time · Bell Helicopter Textron 412. Effective Dec 2, 1983 - [AD 86-16-11 L](https://openairdocs.org/ad/86-16-11-L): Inspect T/R Hub Assembly (See 90-03-09) · Bell Helicopter Textron 412 Historical (superseded or no longer in force): AD 2021-23-13, AD 2018-17-01, AD 2017-15-02, AD 2015-04-04, AD 2011-12-08, AD 2009-05-09, AD 2008-10-03, AD 2007-19-53, AD 2002-09-04, AD 2000-25-03, AD 2000-18-09, AD 98-07-03 ## NTSB investigations (32, newest 10) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB GAA15CA230](https://openairdocs.org/ntsb/GAA15CA230), Aug 17, 2015: Bell 412 (N412LA), Whittier, CA, substantial damage. Probable cause: The pilot's failure to appropriately monitor the helicopter's fuel supply, resulting in fuel exhaustion, loss of engine power, and an autorotation with a hard landing. - [NTSB LAX07FA056](https://openairdocs.org/ntsb/LAX07FA056), Dec 11, 2006: Bell 412SP (N410MA), Hesperia, CA, destroyed, 3 fatal. Probable cause: The pilot's inadvertent encounter with instrument meteorological conditions and subsequent failure to maintain terrain clearance. Contributing to the accident were the dark night conditions, fog, and… - [NTSB FTW04IA217](https://openairdocs.org/ntsb/FTW04IA217), Aug 19, 2004: Bell 412 (N22347), South Pass 65, incident, minor damage. Probable cause: The failure and separation of the tail rotor gearbox for undetermined reasons. - [NTSB FTW04LA133](https://openairdocs.org/ntsb/FTW04LA133), May 23, 2004: Bell 412 (N555BA), San Antonio, TX, substantial damage. Probable cause: The pilot's failure to maintain clearance with the parked helicopter while performing a hovering turn. - [NTSB CHI02LA232](https://openairdocs.org/ntsb/CHI02LA232), Aug 3, 2002: Bell 412 (N464AC), Rantoul, IL, minor damage, 1 fatal. Probable cause: The congested takeoff and landing area and the low altitude flight maneuver performed by the pilot. - [NTSB DEN01FA058](https://openairdocs.org/ntsb/DEN01FA058), Feb 28, 2001: Bell 412SP (N412SM), Grand Junction, CO, destroyed, 1 fatal. Probable cause: the pilot's failure to maintain rotor speed during an intentional autorotation, which resulted in a loss of control. - [NTSB LAX00GA297](https://openairdocs.org/ntsb/LAX00GA297), Aug 13, 2000: Bell 412 (N174EH), Cold Springs, NV, destroyed, 1 fatal. Probable cause: failure of the compressor turbine disc due to cyclic fatigue brought about by repeated operation near or above the engines' temperature/power limits by company personnel over an extended period of… - [NTSB FTW99LA162](https://openairdocs.org/ntsb/FTW99LA162), Jun 9, 1999: Bell 412 (N3893S), Eugene Is. 313, substantial damage. Probable cause: The separation of a section of the tail rotor blade, and subsequent separation of the tail rotor system, as a result of fatigue cracking due to corrosion in the tail rotor blade spar. - [NTSB BFO94FA071](https://openairdocs.org/ntsb/BFO94FA071), Apr 22, 1994: Bell 412/SP (N70AM), Bluefield, VA, destroyed, 4 fatal. Probable cause: THE PILOT'S FAILURE TO INTERCEPT THE FINAL APPROACH COURSE, AND HIS IMPROPER EXECUTION OF THE INSTRUMENT APPROACH PROCEDURE. FACTORS WHICH CONTRIBUTED TO THE ACCIDENT WERE: THE WEATHER CONDITIONS,… - [NTSB FTW94LA043](https://openairdocs.org/ntsb/FTW94LA043), Dec 3, 1993: Bell 412 (N356EH), Cameron, LA, destroyed. Probable cause: THE COPILOT'S CONTINUED FLIGHT INTO ADVERSE WEATHER CONDITIONS, AND THE CAPTAIN'S INADEQUATE SUPERVISION. THE HAZE AND FOG WERE FACTORS. All 32: https://openairdocs.org/model/bell-412/ntsb ## FAA accident and incident reports (46, newest 10) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Incident 20230524004322I](https://openairdocs.org/incident/20230524004322I), May 24, 2023: Bell 412 (N412DE), Indianapolis, IN, Minor damage. On may 24, 2023, [privacy data omitted] was assigned a public operations mission working a grid search just northeast of the [privacy data omitted]. Mission… - [Incident 20150922019189I](https://openairdocs.org/incident/20150922019189I), Sep 22, 2015: Bell 412 (N405LN), Hesperia, CA, Minor damage. Maintenance was performed on the main rotor system. Soon after, the aircraft departed L26 flew to fullerton CA. And returned to L26. Post flight inspection… - [Accident 20150816022059A](https://openairdocs.org/incident/20150816022059A), Aug 16, 2015: Bell 412 (N412LA), Montebello, CA, Destroyed. This transport category helicopter was dispatched as the command ship for the "montibello hills fire" on Sunday 08/16/2015. It was being operated under part 91… - [Accident 20061210025899A](https://openairdocs.org/incident/20061210025899A), Dec 10, 2006: Bell 412 (N410MA), Hesperia, CA, Destroyed, 3 fatal. (-23) On December 10, 2006, at approximately 1755 pacific standard time (PST), a Bell 412, N410MA, operated by life net, as mercy air under contact with loma… - [Incident 20040819023639I](https://openairdocs.org/incident/20040819023639I), Aug 19, 2004: Bell 412 (N22347), Venice, LA, Minor damage. (-23) The aircraft lost the tail rotor and the tail rotor gearbox in cruise flight over the gulf of Mexico. The pilot executed an autorotational landing to the… - [Accident 20040523013099A](https://openairdocs.org/incident/20040523013099A), May 23, 2004: Bell 412 (N555BA), San Antonio, TX, Substantial damage. (-23) On may 23, 2004, at approximately 1605 CDT, a Bell 412 helicopter, N555BA, sustained substantial damage when its tail rotor struck a parked helicopter… - [Accident 20020802018799A](https://openairdocs.org/incident/20020802018799A), Aug 2, 2002: Bell 412 (N464AC), Rantoul, IL, 1 fatal. (.19) On August 2, 2002, at 1952 central daylight time, a Bell 412, N464AC, piloted by an airline transport pilot, was taking off from the Rantoul National… - [Accident 20010228004029A](https://openairdocs.org/incident/20010228004029A), Feb 28, 2001: Bell 412 (N412SM), Grand Junction, CO, Destroyed, 1 fatal. (-23) The pilot was asked to perform an autorotation RPM check. He departed the helipad and transitional to an area normally used for practice manuevers about… - [Accident 20000813013699A](https://openairdocs.org/incident/20000813013699A), Aug 13, 2000: Bell 412 (N174EH), Cold Springs, NV, No damage. (-23) On August 13, 2000, at 1646 PDT Bell heli N174EH collided with mountainous terrain while dropping water on a fire near Cold Springs, NV. According to the… - [Incident 19990625025139I](https://openairdocs.org/incident/19990625025139I), Jun 25, 1999: Bell 412 (N2148K), Morgan City, LA, Minor damage. (-23) The pilot's crew door came off the aircraft in cruise flight. The aircraft was landed safely on an offshore platform in the gulf of Mexico. Investigation… All 46: https://openairdocs.org/model/bell-412/incidents ## Complete lists - aircraft: 11, https://openairdocs.org/model/bell-412/aircraft - ads: 61, https://openairdocs.org/model/bell-412/ads - incidents: 46, https://openairdocs.org/model/bell-412/incidents --- From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.