N681FD

01 /  Registration

Filed with the Federal Aviation Administration

Every cell below is a literal field from the FAA Aircraft Registry. Click any value to open the FAA registry record for N681FD.

02 /  NTSB Records

Events on file with the National Transportation Safety Board

03 /  Airworthiness Directives

Applicable to BELL 412EP

Federal Aviation Administration airworthiness directives matched to make and model. Each entry links to the Federal Register publication.

• Feb 3, 2026

  Airworthiness Directives; Leonardo S.p.a. Helicopters

  The FAA is adopting a new airworthiness directive (AD) for all Leonardo S.p.a. Model AB412 and AB412 EP helicopters. This AD was prompted by reports of a cracked main gearbox (MGB) support case. This AD requires revising the existing rotorcraft flight manual (RFM) for the helicopter. The FAA is issuing this AD to address the unsafe condition on these produc…

  Federal Register →

• May 6, 2025

  Airworthiness Directives; Thommen Aircraft Equipment AG Digital Air Data Computers

  The FAA is correcting an airworthiness directive (AD) that published in the Federal Register. The AD applies to certain Thommen Aircraft Equipment AG (THOMMEN) AC32 Digital Air Data Computers (ADCs). As published, there were typographical errors in the some of the aircraft models in the applicability table. This document corrects those errors. In all other…

  Federal Register →

• Apr 10, 2025

  Airworthiness Directives; Thommen Aircraft Equipment AG Digital Air Data Computers

  The FAA is adopting a new airworthiness directive (AD) for certain THOMMEN AIRCRAFT EQUIPMENT AG (THOMMEN) AC32 Digital Air Data Computers. This AD results from occurrences of AC32 Digital Air Data Computers (ADCs) that stop functioning below certain temperatures. This AD requires replacing an affected AC32 Digital ADC with a serviceable part. The FAA is is…

  Federal Register →

• Oct 31, 2024

  Airworthiness Directives; Various Helicopters

  The FAA is adopting a new airworthiness directive (AD) for various helicopters modified by certain supplemental type certificates (STCs) that approve the installation of an emergency float kit or an emergency float with a liferaft kit. This AD was prompted by the results of an accident investigation and subsequent reports of difficulty pulling the emergency…

  Federal Register →

• Oct 4, 2024

  Airworthiness Directives; Bell Textron Inc. Helicopters

  The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Inc. Model 212, 412, 412CF, and 412EP helicopters. This AD was prompted by reports of cracked tail boom attachment barrel nuts (barrel nuts). This AD requires replacing all steel alloy barrel nuts with nickel alloy barrel nuts, replacing or inspecting other tail boom attachment…

  Federal Register →

• Sep 30, 2024

  Airworthiness Directives; THOMMEN AIRCRAFT EQUIPMENT AG Digital Air Data Computers

  The FAA proposes to adopt a new airworthiness directive (AD) for certain THOMMEN AIRCRAFT EQUIPMENT AG (THOMMEN) AC32 Digital Air Data Computers. This proposed AD results from occurrences of AC32 Digital Air Data Computers (ADCs) that stop functioning below certain temperatures. This proposed AD would require replacing an affected AC32 Digital ADC with a se…

  Federal Register →

• Aug 20, 2024

  Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron, Inc.), Helicopters

  The FAA is superseding Airworthiness Directive (AD) 2000-18- 09, which applied to certain Bell Helicopter Textron, Inc. (now Bell Textron Inc.), Model 412, 412CF, and 412EP helicopters. AD 2000-18-09 required repetitively inspecting the upper left-hand cap angle (cap angle) and adjacent structure for a crack and, depending on the results, replacing any crac…

  Federal Register →

• May 8, 2024

  Airworthiness Directives; Bell Textron Inc., Helicopters

  The FAA proposes to adopt a new airworthiness directive (AD) for certain Bell Textron Inc., Model 212, 412, 412CF, and 412EP helicopters. This proposed AD was prompted by reports of cracked tail boom attachment barrel nuts (barrel nuts). This proposed AD would require replacing all steel alloy barrel nuts with nickel alloy barrel nuts and, replacing or insp…

  Federal Register →

• Apr 25, 2024

  Airworthiness Directives; Various Helicopters

  The FAA proposes to adopt a new airworthiness directive (AD) for various helicopters modified by certain supplemental type certificates (STCs) that approve the installation of an emergency float kit or an emergency float with liferaft kit. This proposed AD was prompted by the results of an accident investigation and subsequent reports of difficulty pulling…

  Federal Register →

• Nov 21, 2022

  Airworthiness Directives; Bell Textron Inc., Helicopters and Various Restricted Category Helicopters

  The FAA is adopting a new airworthiness directive (AD) for Bell Textron Inc., Model 204B, 205A, 205A-1, 205B, 210, 212, 412, 412CF, and 412EP helicopters and various restricted category helicopters. This AD was prompted by reports of cracks found on the main transmission support case. This AD requires repetitive inspections of the main transmission housing…

  Federal Register →

• Nov 7, 2022

  Airworthiness Directives; Bell Textron Inc., Erickson 214 Holdings, LLC, Leonardo S.p.a., and Various Restricted Category Helicopters

  The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Inc., Model 204B, 205A, 205A-1, 205B, 210, 212, 412, 412CF, and 412EP helicopters; certain Erickson 214 Holdings, LLC, Model 214B and 214B-1 helicopters; certain Leonardo S.p.a. Model AB412 and AB412 EP helicopters; and certain various restricted category helicopters. This AD wa…

  Federal Register →

• Jun 1, 2022

  Airworthiness Directives; Bell Textron Inc. Helicopters

  The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Inc. Model 212, 412, 412CF, and 412EP helicopters. This AD was prompted by a report of a cracked check valve. This AD requires inspecting certain engine oil and fuel check valves, and depending on the results, repetitively inspecting and removing the check valve from service. Th…

  Federal Register →

• Apr 14, 2022

  Airworthiness Directives; Bell Textron Inc., Helicopters and Various Restricted Category Helicopters

  The FAA proposes to adopt a new airworthiness directive (AD) for Bell Textron Inc., Model 204B, 205A, 205A-1, 205B, 210, 212, 412, 412CF, and 412EP helicopters and various restricted category helicopters. This proposed AD was prompted by reports of cracks found on the main transmission support case. This proposed AD would require repetitive inspections of t…

  Federal Register →

• Apr 4, 2022

  Airworthiness Directives; Bell Textron Inc. Helicopters

  The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Inc. Model 205A, 205A-1, 205B, 210, 212, 412, 412CF, and 412EP helicopters with a certain part-numbered tailboom left hand fin spar cap (spar cap) installed. This AD was prompted by reports of cracked spar caps. This AD requires inspecting each spar cap and depending on the insp…

  Federal Register →

• Mar 31, 2022

  Airworthiness Directives; Bell Textron Inc., Helicopters

  The FAA proposes to adopt a new airworthiness directive (AD) for certain Bell Textron Inc., Model 212, 412, 412CF, and 412EP helicopters. This proposed AD was prompted by a report of a cracked check valve. This proposed AD would require inspecting certain engine oil and fuel check valves, and depending on the results, repetitively inspecting and removing th…

  Federal Register →

• Mar 23, 2022

  Airworthiness Directives; Bell Textron Inc., Helicopters

  The FAA is adopting a new airworthiness directive (AD) for Bell Textron Inc., Model 412, 412EP, and 412CF helicopters. This AD was prompted by evaluation results showing flight loads that impact the collective lever fatigue life. This AD requires adding a permanent hours time-in-service (TIS) penalty for certain collective levers and prohibits installing th…

  Federal Register →

• Mar 16, 2022

  Airworthiness Directives; Goodrich Externally-Mounted Hoist Assemblies

  The FAA is adopting a new airworthiness directive (AD) for various model helicopters with certain part-numbered Goodrich externally-mounted hoist assemblies (hoists) installed. This AD was prompted by hoists failing lower load limit inspections. This AD requires replacing unmodified hoists, installing placards, revising the existing Rotorcraft Flight Manual…

  Federal Register →

• Jan 21, 2022

  Airworthiness Directives; Bell Textron Inc. Helicopters

  The FAA proposes to adopt a new airworthiness directive (AD) for certain Bell Textron Inc. Model 205A, 205A-1, 205B, 210, 212, 412, 412CF, and 412EP helicopters with a certain part-numbered tailboom left hand fin spar cap (spar cap) installed. This proposed AD was prompted by reports of cracked spar caps. This proposed AD would require inspecting each spar…

  Federal Register →

• Sep 30, 2021

  Airworthiness Directives; Goodrich Externally-Mounted Hoist Assemblies

  The FAA is revising a notice of proposed rulemaking (NPRM) for various model helicopters with certain part-numbered Goodrich externally-mounted hoist assemblies (hoists) installed. This action revises the NPRM by adding a figure and revising certain requirements. The FAA is proposing this airworthiness directive (AD) to address the unsafe condition on these…

  Federal Register →

• Aug 27, 2021

  Airworthiness Directives; Bell Textron Inc., Helicopters

  The FAA proposes to adopt a new airworthiness directive (AD) for Bell Textron Inc., Model 412, 412EP, and 412CF helicopters. This proposed AD was prompted by evaluation results showing flight loads that impact the collective lever fatigue life. This proposed AD would require adding a permanent life penalty for certain collective levers and prohibit installi…

  Federal Register →

• Dec 11, 2020

  Airworthiness Directives; Goodrich Externally-Mounted Hoist Assemblies

  The FAA proposes to adopt a new airworthiness directive (AD) for various model helicopters with certain part-numbered Goodrich externally-mounted hoist assemblies (hoists) installed. This proposed AD would require replacing unmodified hoists, installing placards, revising the existing Rotorcraft Flight Manual (RFM) for your helicopter, deactivating or remov…

  Federal Register →

• Nov 3, 2020

  Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters

  The FAA is adopting a new airworthiness directive (AD) for all Bell Textron Inc. (Type Certificate previously held by Bell Helicopter Textron Inc.) Model 412, 412CF, and 412EP helicopters. This AD requires revising the existing Rotorcraft Flight Manual (RFM) for your helicopter. This AD was prompted by an accident and multiple reports of a cracked main gear…

  Federal Register →

• Jul 30, 2020

  Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters

  The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Inc. (Bell) Model 204B, 205A, 205A-1, 205B, 212, 214B, 214B-1, 412, 412CF, and 412EP helicopters. This AD was prompted by a report of a shoulder harness seat belt comfort clip (comfort clip) interfering with the seat belt inertia reel. This AD requires removing comfort clips fro…

  Federal Register →

• Jun 11, 2020

  Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters

  The FAA is superseding Airworthiness Directive (AD) 2011-12-08 for Bell Helicopter Textron Inc. (Bell), Model 205A, 205A-1, 205B, 212, 412, 412CF, and 412EP helicopters. AD 2011-12-08 required a one-time inspection of the tail rotor (T/R) blade for corrosion and pitting. This new AD retains the requirements of AD 2011-12-08 while excluding certain T/R blade…

  Federal Register →

• Apr 6, 2020

  Airworthiness Directives; Bell Textron, Inc. (Type Certificate Previously Held by Bell Helicopter Textron, Inc.) Helicopters

  The FAA proposes to adopt a new airworthiness directive (AD) for certain Bell Textron, Inc. (Type Certificate previously held by Bell Helicopter Textron, Inc.) (Bell) Model 204B, 205A, 205A-1, 205B, 212, 214B, 214B-1, 412, 412CF, and 412EP helicopters. This proposed AD was prompted by a report of a shoulder harness seat belt comfort clip (comfort clip) inte…

  Federal Register →

• Feb 11, 2020

  Airworthiness Directives; Bell Helicopter Textron Inc. Helicopters

  The FAA is superseding Airworthiness Directive (AD) 2015-04-04 for Bell Helicopter Textron Inc. (Bell) Model 412 and 412EP helicopters. AD 2015-04-04 required revising the Rotorcraft Flight Manual (RFM) for your helicopter and installing a placard to limit flights to visual flight rules (VFR) and prohibit night operations because of failing inverters. This…

  Federal Register →

• May 20, 2019

  Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

  We are superseding Airworthiness Directive (AD) 2018-17-01 for Bell Model 212, 412, 412CF, and 412EP helicopters. AD 2018-17-01 required replacing certain oil and fuel check valves and prohibited installing these valves on any helicopter. This AD retains the requirements of AD 2018-17-01 but expands those requirements for all model helicopters. This AD was…

  Federal Register →

• Apr 24, 2019

  Airworthiness Directives; Northrop Grumman LITEF GmbH LCR-100 Attitude and Heading Reference System Units

  We are adopting a new airworthiness directive (AD) for Northrop Grumman LITEF GmbH LCR-100 Attitude and Heading Reference System (AHRS) units installed on various aircraft. This AD requires removing certain LCR-100 AHRS units from service. This AD was prompted by test results showing loss of or invalid data. The actions of this AD are intended to prevent an…

  Federal Register →

• Apr 11, 2019

  Airworthiness Directives; Bell Helicopter Textron Inc. Helicopters

  We propose to supersede airworthiness directive (AD) 2011-12- 08 for Bell Helicopter Textron Inc. (Bell) Model 205A, 205A-1, 205B, 212, 412, 412CF, and 412EP helicopters. AD 2011-12-08 requires a one- time inspection of the tail rotor (T/R) blade for corrosion and pitting. Since we issued AD 2011-12-08, Bell has implemented new manufacturing and inspection…

  Federal Register →

• Aug 30, 2018

  Airworthiness Directives; Bell Helicopter Textron Inc., Helicopters

  We are adopting a new airworthiness directive (AD) for Bell Helicopter Textron Inc. (Bell) Model 212, Model 412, and Model 412EP helicopters. This AD requires replacing the emergency flotation system (EFS) tube assembly. This AD was prompted by a report of an EFS tube assembly failure. The actions of this AD are intended to address an unsafe condition on th…

  Federal Register →

• Aug 21, 2018

  Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

  We are superseding Airworthiness Directive (AD) 2017-15-02 for Bell Model 212 and 412 helicopters. AD 2017-15-02 required replacing certain oil and fuel check valves and prohibited installing them on any helicopter. This AD retains the requirements of AD 2017-15-02 and adds certain model helicopters to the applicability. This AD was prompted by the discover…

  Federal Register →

• Aug 2, 2018

  Airworthiness Directives; Bell Helicopter Textron Inc. Helicopters

  We propose to supersede airworthiness directive (AD) 2015-04- 04 for Bell Helicopter Textron Inc. (Bell) Model 412 and 412EP helicopters. AD 2015-04-04 requires revising the Rotorcraft Flight Manual (RFM) and installing a placard to limit flights to visual flight rules (VFR) and prohibiting night operations because of failing inverters. This proposed AD wou…

  Federal Register →

• Jan 26, 2018

  Airworthiness Directives; Bell Helicopter Textron Inc.

  We propose to adopt a new airworthiness directive (AD) for Bell Helicopter Textron Inc. (Bell) Model 212, Model 412, and Model 412EP helicopters. This proposed AD would require replacing the emergency flotation system (EFS) tube assembly. This proposed AD is prompted by a report of an EFS tube assembly failure. The actions of this proposed AD are intended t…

  Federal Register →

• Jun 5, 2017

  Airworthiness Directives; Northrop Grumman LITEF GmbH LCR-100 Attitude and Heading Reference System Units

  We propose to adopt a new airworthiness directive (AD) for Northrop Grumman LITEF GmbH LCR-100 Attitude and Heading Reference System (AHRS) units installed on various aircraft. This proposed AD would require removing certain LCR-100 AHRS units from service. This proposed AD is prompted by test results showing loss of or invalid data. The proposed actions ar…

  Federal Register →

• Feb 24, 2015

  Airworthiness Directives; Bell Helicopter Textron Inc. Helicopters

  We are adopting a new airworthiness directive (AD) for Bell Helicopter Textron Inc. (Bell) Model 412 and 412EP helicopters with certain static inverters (inverters) installed. This AD requires revising the Rotorcraft Flight Manual (RFM) and installing a placard in full view of the pilot to limit flight to visual flight rules (VFR) only and prohibit night op…

  Federal Register →

• Mar 10, 2014

  Airworthiness Directives; Agusta S.p.A. Helicopters

  We are adopting a new airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model AB412 and AB412 EP helicopters. This AD requires inspecting the tail rotor (T/R) blade for a crack, corrosion, nick, scratch, dent, or other damage and replacing or repairing the blade, depending on the damage. This AD is prompted by reports of T/R blade failures caused by f…

  Federal Register →

• Oct 25, 2013

  Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

  We are superseding Airworthiness Directive (AD) 2009-05-09 for Bell Model 412, 412CF, and 412EP helicopters. AD 2009-05-09 required reidentifying each affected part-numbered main rotor yoke (yoke) on its data plate, reducing the retirement life of the reidentified yoke, and revising the Airworthiness Limitations section of the maintenance manual or the Inst…

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• Aug 13, 2013

  Airworthiness Directives; Agusta S.p.A. and Bell Helicopter Textron Helicopters

  We are adopting a new airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model AB412 and AB412 EP, and Bell Helicopter Textron (Bell) Model 412, 412CF, and 412EP helicopters with certain DART Aerospace Ltd. (Dart) high gear aft crosstubes (crosstube) installed. This AD requires adding a life limit of 10,000 landings to the crosstube and removing from s…

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• Jul 30, 2013

  Airworthiness Directives; Bell Helicopter Textron Helicopters

  We are superseding Airworthiness Directive (AD) 2008-10-03 for Bell Helicopter Textron Helicopters (Bell) Model 204B, 205A, 205A-1, 205B, 210, 212, 412, 412CF, and 412EP helicopters. AD 2008-10-03 required certain checks and inspections of each tail rotor blade assembly (T/R blade) at specified intervals and repairing or replacing, as applicable, any cracke…

  Federal Register →

• Jun 28, 2013

  Airworthiness Directives; Various Helicopter Models

  We are publishing a new airworthiness directive (AD) for various model helicopters with certain part-numbered and serial- numbered Goodrich externally-mounted hoists installed. This AD requires performing a cable conditioning lift and a load inspection test, deactivating or replacing any hoist that fails the load inspection test, and recording the results o…

  Federal Register →

• Jun 11, 2013

  Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell), Model Helicopters

  This document proposes to supersede an existing airworthiness directive (AD) for the Bell Model 412, 412CF, and 412EP helicopters. The AD currently requires reidentifying each affected part-numbered main rotor yoke (yoke) on its data plate, reducing the retirement life of the reidentified yoke, and revising the Airworthiness Limitations section of the maint…

  Federal Register →

• Mar 22, 2013

  Airworthiness Directives; Bell Helicopter Textron, Inc.

  We are adopting a new airworthiness directive (AD) for Bell Helicopter Textron, Inc. (Bell), Model 412 and 412EP helicopters. This AD requires establishing a lower life limit on certain swashplate outer ring assemblies (outer ring), revising the retirement life on the components' history card or equivalent record, and revising the maintenance manual or Inst…

  Federal Register →

• Feb 25, 2013

  Airworthiness Directives; Agusta S.p.A. and Bell Helicopter Textron Helicopters

  We propose to adopt a new airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model AB412 and AB412 EP, and Bell Helicopter Textron (Bell) Model 412, 412CF, and 412EP helicopters with certain DART Aerospace Ltd. (Dart) high gear aft crosstubes (crosstube) installed. This proposed AD would require adding a life limit of 10,000 landings to the crosstube a…

  Federal Register →

• Feb 4, 2013

  Airworthiness Directives; Bell Helicopter Textron, Inc., Helicopters

  We are adopting a new airworthiness directive (AD) for Bell Helicopter Textron, Inc. (Bell), Model 412 and 412EP helicopters. This AD requires creating a component history card or equivalent record and begin counting and recording the number of accumulated landings for each high aft crosstube assembly (crosstube). Also, this AD requires installing "caution"…

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• Nov 15, 2012

  Airworthiness Directives; Bell Helicopter Textron Helicopters

  We are adopting a new airworthiness directive (AD) for Bell Helicopter Textron (BHT) Model 412, 412EP, and 412CF helicopters. This AD requires a repetitive inspection of the collective lever for a crack, and if there is a crack, before further flight, replacing the collective lever with an airworthy collective lever. This AD was prompted by a reported failu…

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• Nov 9, 2012

  Airworthiness Directives; Aeronautical Accessories, Inc., High Landing Gear Forward Crosstube Assembly

  We are adopting a new airworthiness directive (AD) for Aeronautical Accessories, Inc. (AAI) high landing gear forward crosstube assemblies (crosstubes) installed on Agusta S.p.A. (Agusta) Model AB412 and AB412EP; and Bell Helicopter Textron, Inc. (Bell) Model 205A, 205A-1, 205B, 212, 412, 412CF, and 412EP helicopters during production or based on a suppleme…

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• Sep 24, 2012

  Airworthiness Directives; Bell Helicopter Textron, Inc.

  We propose to adopt a new airworthiness directive (AD) for Bell Helicopter Textron, Inc. (Bell), Model 412 and 412EP helicopters. This proposed AD is prompted by reports of cracking in the swashplate outer ring assemblies (outer ring). This AD would establish a lower life limit on certain outer rings, requiring a revision of the retirement life on the compo…

  Federal Register →

• Jul 30, 2012

  Airworthiness Directives; Various Restricted Category Helicopters

  We are adopting a new airworthiness directive (AD) for Arrow Falcon Exporters, Inc. (previously Utah State University); Firefly Aviation Helicopter Services (previously Erickson Air-Crane Co.); California Department of Forestry; Garlick Helicopters, Inc.; Global Helicopter Technology, Inc.; Hagglund Helicopters, LLC (previously Western International Aviatio…

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• Jun 25, 2012

  Airworthiness Directives; Aeronautical Accessories, Inc., High Landing Gear Aft Crosstube Assembly

  We are adopting a new airworthiness directive (AD) for the Aeronautical Accessories, Inc. (AAI), High Landing Gear Aft Crosstube Assembly (aft crosstube) installed on certain Bell Helicopter Textron, Inc. (Bell) and Agusta S.p.A. (Agusta) model helicopters as an approved Bell part installed during production or based on a Supplemental Type Certificate (STC)…

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• May 22, 2012

  Airworthiness Directives; Bell Helicopter Textron Helicopters

  We propose to adopt a new airworthiness directive (AD) for Bell Helicopter Textron (BHT) Model 412, 412EP, and 412CF helicopters. This proposed AD is prompted by a reported failure of a collective lever. These proposed actions are intended to detect a crack in the collective lever, which could lead to failure of the collective lever and subsequent loss of c…

  Federal Register →

04 /  Service Difficulty Reports

FAA SDR filings

The FAA does not currently expose a public API for Service Difficulty Reports. We do not back-fill or paraphrase. Search the FAA SDR portal directly →

05 /  Sources & Methodology

Every fact on this page links to its primary US-government source

• FAA Aircraft Registry →

  Refreshed May 5, 2026

  Available

• NTSB CAROL →

  Refreshed May 5, 2026

  Available

• Federal Register (FAA Airworthiness Directives) →

  Refreshed May 5, 2026

  Available

• FAA Service Difficulty Reports →

  Refreshed May 5, 2026

  Unavailable

We render only what the agency publishes. Found a factual error? Report it → We acknowledge within 5 business days and resolve within 14.