Public Record · As of May 5, 2026
N765MH
Sikorsky S-76A · 1983 View Type →
Status
Registration Valid
Type
Rotorcraft
Engine
ALLISON 250-C30 SER
Last Cert Issue
—
Aircraft Resources
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 N765MH.
Tail Number
N765MH
Serial Number
760236
Make
SIKORSKY
Model
S-76A
Year of Manufacture
1983
Mfr / Model Code
8143006
Type Aircraft
Rotorcraft
Type Engine
Turbo-shaft
Engines
2
Seats
14
Engine Manufacturer
ALLISON
Engine Model
250-C30 SER
Horsepower
650 hp
Weight Class
CLASS 1
Certification
Standard (+1 flag) · code 1T
Registrant
GM LEASING CO LLC · LLC
Address
1318 SMEDE HWY · BROUSSARD, LA 70518-8028
FAA Region
2 · County 055
Status
Registration Valid
Airworthiness Date
—
Cert Issue Date
—
Expiration Date
—
Last FAA Action
—
Mode S Hex (ICAO24)
AA5536
Mode S (Octal)
52452466
Live position via ICAO24 AA5536
External services. Live tracks are unaffiliated with TallyAero or the FAA.
02 / NTSB Records
Events on file with the National Transportation Safety Board
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Dec 1, 2010
Peoria, Arizona fatal
Airport · P48 Pleasant Valley Airport
03 / Airworthiness Directives
Applicable to SIKORSKY S-76A
Federal Aviation Administration airworthiness directives matched to make and model. Each entry links to the Federal Register publication.
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Oct 31, 2024
Federal Register →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…
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Apr 25, 2024
Federal Register →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…
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Jun 22, 2023
Federal Register →Airworthiness Directives; Various Helicopters
The FAA is superseding Airworthiness Directive (AD) 2021-23- 13, which applied to all helicopters equipped with a radio (also known as radar) altimeter. AD 2021-23-13 required revising the limitations section of the existing rotorcraft flight manual (RFM) for your helicopter to incorporate limitations prohibiting certain operations requiring radio altimeter…
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Mar 16, 2022
Federal Register →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…
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Sep 30, 2021
Federal Register →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…
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Feb 22, 2021
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation Model S-76A, S-76B, and S-76C Helicopters Modified by Supplemental Type Certificate SR09211RC
The FAA is withdrawing a notice of proposed rulemaking (NPRM) that proposed to adopt a new airworthiness directive (AD) that would have applied to all Sikorsky Aircraft Corporation (Sikorsky) S-76 model helicopters with a certain life raft deployment system (LRDS) installed per Supplemental Type Certificate (STC) SR09211RC. The NPRM was prompted by an incid…
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Dec 11, 2020
Federal Register →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…
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Apr 24, 2019
Federal Register →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…
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Nov 28, 2017
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
We are adopting a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S-76A, S-76B, S-76C, and S-76D helicopters. This AD requires inspecting the main rotor (M/R) servo pushrod (pushrod) assembly and applying slippage marks. This AD was prompted by an accident of a Sikorsky Model S-76C helicopter caused by a failed pushrod as…
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Jun 5, 2017
Federal Register →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…
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Jun 5, 2017
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
We propose to adopt a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S-76A, S-76B, S-76C, and S-76D helicopters. This proposed AD would require inspecting the main rotor (M/R) servo pushrod (pushrod) assembly and applying slippage marks. This proposed AD is prompted by an accident of a Sikorsky Model S-76C helicopter cau…
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Jan 5, 2016
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
We are adopting a new airworthiness directive (AD) for certain Sikorsky Aircraft Corporation (Sikorsky) Model S-76A, S-76B, and S-76C helicopters. This AD requires inspecting the main gearbox (MGB) lower housing jet bores for leaks, paint or caulk blistering, and liner protrusion. This AD was prompted by several reports of MGB low oil pressure warnings whic…
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Oct 26, 2015
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
We are publishing a new airworthiness directive (AD) for Sikorsky Aircraft Corporation Model S-76A, S-76B, S-76C, and S-76D helicopters, which was sent previously to all known U.S. owners and operators of these helicopters. This AD requires inspecting the main rotor (M/R) and tail rotor (T/R) pushrod assemblies and the jamnuts, and applying slippage marks a…
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Feb 25, 2015
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Helicopters
We are adopting a new airworthiness directive (AD) for certain Sikorsky Model S-76A, B, C, and D helicopters. This AD requires inspecting the tail rotor drive shaft (TDS) flange-to-shaft attachment hardware for correct assembly and correct torque of the fasteners. If there is a discrepancy, this AD requires, before further flight, applying an index mark to…
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Jun 2, 2014
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Helicopters
We propose to adopt a new airworthiness directive (AD) for Sikorsky Model S-76A, S-76B, and S-76C helicopters with a main gearbox (MGB) installed that has undergone certain repairs. This proposed AD would require inspecting the MGB lower housing jet bores for leaks, paint or caulk blistering, and liner protrusion. This proposed AD is prompted by several rep…
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Apr 28, 2014
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
We are superseding Airworthiness Directive (AD) 2005-22-01 for Sikorsky Aircraft Corporation (Sikorsky) Model S-76A, B, and C helicopters. AD 5002-22-01 required inspecting the main rotor lower bifilar arm assembly (bifilar arm assembly) for a crack, and if there is a crack, replacing the bifilar arm assembly. AD 2005-22-01 also required a one-time test for…
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Nov 8, 2013
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Helicopters
We are adopting a new airworthiness directive (AD) for Sikorsky Model S-76A, B, and C helicopters to require certain inspections of each spindle cuff assembly or blade fold cuff assembly for a crack. If there is a crack, this AD requires replacing the cracked part. If there is no crack, this AD requires applying white paint to the inspection area to enhance…
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Jul 23, 2013
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Helicopters
We propose to supersede an existing airworthiness directive (AD) for Sikorsky Model S-76A, B, and C helicopters. The existing AD currently requires inspecting the main rotor lower bifilar arm assembly (bifilar arm assembly) for a crack, and if there is a crack, replacing the bifilar arm assembly. The AD also requires a one-time test for the correct torque o…
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Jun 28, 2013
Federal Register →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…
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Jun 20, 2013
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model Helicopters
We propose to adopt a new airworthiness directive (AD) for Sikorsky Model S-76A, B, and C helicopters to require certain inspections of each spindle cuff assembly or blade fold cuff assembly for a crack. If there is a crack, this proposed AD would require replacing the cracked part. If there is no crack, this AD would require applying white paint to the ins…
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Aug 17, 2012
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
We are adopting a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S-76A helicopters to require modifying the electric rotor brake (ERB) and inserting changes into the "Normal Procedures" and "Emergency Procedures" sections of the Rotorcraft Flight Manual (RFM). This AD was prompted by a fire in the main gearbox area as a…
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Oct 26, 2011
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation Model S-76A Helicopters
This document proposes adopting a new airworthiness directive (AD) for the Sikorsky Aircraft Corporation (Sikorsky) Model S-76A helicopters. This proposal would require modifying the electric rotor brake (ERB). Thereafter, the AD would also require inserting changes to the "Normal Procedures" and "Emergency Procedures" sections of the Rotorcraft Flight Manu…
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Mar 4, 2011
Federal Register →Airworthiness Directives; Turbomeca Model Arriel 1E2, 1S, and 1S1 Turboshaft Engines
This action supersedes emergency airworthiness directive (AD) 2011-05-51 that was sent previously to all known U.S. owners and operators of the products listed above. That AD requires inspecting the fuel ejector in the body of the fuel ejector assembly for proper installation by checking that the circlip is properly seated in its groove. That AD was prompte…
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Mar 1, 2011
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation Model S-76A, S-76B, and S-76C Helicopters Modified by Supplemental Type Certificate SR09211RC
We propose to adopt a new airworthiness directive (AD) for all Sikorsky Aircraft Corporation (Sikorsky) S-76 model helicopters with a certain life raft deployment system (LRDS) installed per Supplemental Type Certificate (STC) SR09211RC. This proposed AD would require removing and replacing the pilot or co-pilot life raft deployment handle (handle) located…
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Dec 28, 2010
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Model S76A, B, and C Helicopters
This amendment supersedes an existing emergency airworthiness directive (EAD) for the specified Sikorsky model helicopters. The EAD requires inspecting the LITEF Attitude Heading and Reference System (AHRS) unit of the navigation system to determine if it is at a Mod Status "18." If either AHRS unit is at Mod Status "18," the EAD requires installing placard…
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Sep 21, 2010
Federal Register →Airworthiness Directives; Turbomeca Arriel 1 Series Turboshaft Engines
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
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Sep 13, 2010
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation Model S-76A, S-76B, and S-76C Helicopters
We are adopting a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S-76A, S-76B, and S-76C helicopters. This AD requires an initial and recurring inspections of the tail rotor vertical stabilizer aft spar assembly (aft spar assembly) for a crack, loose or working fasteners, and corrosion, and, if any are found, further ins…
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May 13, 2010
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation Model S-76A, B, and C Helicopters
This amendment adopts a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S-76A, B, and C helicopters that requires inspecting each installed Woodward HRT (formerly HR Textron) main rotor servo actuator (servo actuator) for a high rate of leakage and replacing each affected servo actuator with a servo actuator containing a…
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Mar 29, 2010
Federal Register →Airworthiness Directives; Various Aircraft Equipped With Honeywell Primus II RNZ-850( )/-851( ) Integrated Navigation Units
The FAA is superseding an existing airworthiness directive (AD) that applies to certain Honeywell Primus II RNZ-850( )/-851( ) integrated navigation units (INUs). As one alternative for compliance, the existing AD provides for a one-time inspection to determine whether a certain modification has been installed on the Honeywell Primus II NV-850 navigation re…
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Dec 28, 2009
Federal Register →Airworthiness Directives; Turbomeca Arriel 1A1, 1A2, 1B, 1C, 1C1, 1C2, 1D, 1D1, 1E2, 1K1, 1S, and 1S1 Turboshaft Engines
The FAA is superseding an existing airworthiness directive (AD) for Turbomeca Arriel 1A1, 1A2, 1B, 1C, 1C1, 1C2, 1D, 1D1, 1E2, 1K1, 1S, and 1S1 turboshaft engines. That AD currently requires initial and repetitive visual inspections of certain reduction gearboxes (module M05) for oil leakage, repair if leaking, and repair of all affected modules as optional…
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Jun 30, 2009
Federal Register →Airworthiness Directives; Turbomeca S.A. Arriel 1A1, 1A2, 1B, 1C, 1C1, 1C2, 1D, 1D1, 1E2, 1K1, 1S, and 1S1 Turboshaft Engines
This document publishes in the Federal Register an amendment adopting emergency airworthiness directive (AD) 2009-12-51 that was sent previously to all known U.S. owners and operators of Turbomeca S.A. Arriel 1A1, 1A2, 1B, 1C, 1C1, 1C2, 1D, 1D1, 1E2, 1K1, 1S, and 1S1 turboshaft engines. This AD requires initial and repetitive visual inspections of certain r…
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Feb 20, 2009
Federal Register →Airworthiness Directives; Turbomeca S.A. Models Arriel 1E2, 1S, and 1S1 Turboshaft Engines
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
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Feb 11, 2009
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation Model S-76A, B, and C Helicopters
This document revises an earlier proposed airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S- 76A, B, and C helicopters. That AD proposed to require inspecting each installed HR Textron main rotor servo actuator (servo actuator) for a high rate of leakage and for contaminated hydraulic fluid and reducing the time-in-service (T…
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Jun 25, 2008
Federal Register →Airworthiness Directives; Turbomeca S.A. Models Arriel 1E2, 1S, and 1S1 Turboshaft Engines
We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
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Jun 4, 2008
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation Model S-76A, S-76B, and S-76C Helicopters
This document proposes adopting a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S-76A, S-76B, and S-76C helicopters. The AD would require an initial and recurring inspections of the tail rotor vertical stabilizer aft spar assembly (aft spar assembly) for a crack, loose or working fasteners, and corrosion, and, if any ar…
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May 19, 2008
Federal Register →Airworthiness Directives; Various Aircraft Equipped With Honeywell Primus II RNZ-850( )/-851(-) Integrated Navigation Units
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to various aircraft equipped with certain Honeywell Primus II RNZ-850( )/-851( ) integrated navigation units (INUs). The existing AD, as one alternative for compliance, provides for a one-time inspection to determine whether a certain modification has been installed on the H…
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Mar 26, 2008
Federal Register →Airworthiness Directives; Turbomeca Arriel 1B, 1D, 1D1, and 1S1 Turboshaft Engines
The FAA is superseding an existing airworthiness directive (AD) for certain Turbomeca Arriel 1B, 1D, 1D1, and 1S1 turboshaft engines. That AD currently requires initial and repetitive position checks of the gas generator 2nd stage turbine blades on all Turbomeca Arriel 1B, 1D, 1D1, and 1S1 turboshaft engines. That AD also currently requires initial and repe…
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May 31, 2007
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation Model S-76A, B, and C Helicopters
This amendment adopts a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S-76A, B, and C helicopters. This action requires a one-time ultrasonic inspection of the main rotor shaft assembly (M/R shaft) for cracking. This amendment is prompted by the discovery of cracking that occurred during the manufacturing of certain M/R…
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Mar 9, 2007
Federal Register →Airworthiness Directives; Turbomeca Arriel 1B, 1D, 1D1, and 1S1 Turboshaft Engines
The FAA proposes to supersede an existing airworthiness directive (AD) for certain Turbomeca Arriel 1B, 1D, 1D1, and 1S1 turboshaft engines. That AD currently requires initial and repetitive position checks of the gas generator 2nd stage turbine blades on all Turbomeca Arriel 1B, 1D, 1D1, and 1S1 turboshaft engines. That AD also currently requires initial a…
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Jan 26, 2007
Federal Register →Airworthiness Directives; Turbomeca Arriel 1 Series Turboshaft Engines
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
-
Oct 27, 2006
Federal Register →Airworthiness Directives; Various Aircraft Equipped With Honeywell Primus II RNZ-850( )/-851( ) Integrated Navigation Units
The FAA is superseding an existing airworthiness directive (AD), which applies to various aircraft equipped with certain Honeywell Primus II RNZ-850( )/-851( ) integrated navigation units (INUs). That AD, as one alternative for compliance, provides for a one-time inspection to determine whether a certain modification has been installed on the Honeywell Prim…
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Sep 28, 2006
Federal Register →Airworthiness Directives; Rolls-Royce Corporation Models 250-C30, 250-C40, and 250-C47 Series Turboshaft Engines
The FAA is adopting a new airworthiness directive (AD) for Rolls-Royce Corporation (RRC) models 250-C30, 250-40, and 250-C47 series turboshaft engines with a third-stage turbine wheel, part number (P/N) 6898663 or P/N 23065843 installed, or a fourth-stage turbine wheel, P/N 6892764 or P/N 23066744, installed. This AD adds an additional life limit for third-…
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Aug 14, 2006
Federal Register →Airworthiness Directives; Turbomeca Arriel 1B, 1D, 1D1, and 1S1 Turboshaft Engines
The FAA is revising an existing airworthiness directive (AD) for certain Turbomeca Arriel 1B, 1D, 1D1, and 1S1 turboshaft engines. That AD currently requires initial and repetitive position checks of the gas generator 2nd stage turbine blades on all Turbomeca Arriel 1B, 1D, 1D1, and 1S1 turboshaft engines. That AD also currently requires initial and repetit…
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Aug 3, 2006
Federal Register →Airworthiness Directives; Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) (RRC) 250-B and 250-C Series Turboshaft and Turboprop Engines
The FAA is superseding an existing airworthiness directive (AD) for RRC 250-B and 250-C series turboshaft and turboprop engines. That AD currently requires a onetime inspection of the fuel nozzle screen for contamination, and if contamination is found, inspection and cleaning of the entire aircraft fuel system before further flight. That AD also requires re…
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May 18, 2006
Federal Register →Airworthiness Directives; Various Aircraft Equipped With Honeywell Primus II RNZ-850/-851 Integrated Navigation Units
The FAA is revising an earlier NPRM for an airworthiness directive (AD) that applies to various aircraft equipped with a Honeywell Primus II RNZ-850/-851 Integrated Navigation Unit (INU). The original NPRM would have superseded an existing AD that, as one alternative for compliance, provides for a one-time inspection to determine whether a certain modificat…
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May 2, 2006
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation Model S-76A, B, and C Helicopters
This document proposes adopting a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model S-76A, B, and C helicopters. The AD would require inspecting all installed HR Textron main rotor servo actuators (servo actuators) for a high rate of leakage and also inspecting for contaminated hydraulic fluid. The AD would also require red…
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Apr 17, 2006
Federal Register →Airworthiness Directives; Turbomeca Arriel 1B, 1D, 1D1, and 1S1 Turboshaft Engines
The FAA proposes to revise an existing airworthiness directive (AD) for certain Turbomeca Arriel 1B, 1D, 1D1, and 1S1 turboshaft engines. That AD currently requires initial and repetitive position checks of the gas generator 2nd stage turbine blades on all Turbomeca Arriel 1B, 1D, 1D1, and 1S1 turboshaft engines. That AD also currently requires initial and…
-
Jan 25, 2006
Federal Register →Airworthiness Directives; Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) Models 250-C30, 250-C40, and 250-C47 Series Turboshaft Engines
The FAA proposes to adopt a new airworthiness directive (AD) for Rolls-Royce Corporation (formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) (RRC) models 250-C30, 250-40, and 250-C47 series turboshaft engines. This proposed AD would add an additional life limit for third- and fourth-stage turbine wheels. This proposed…
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Jan 24, 2006
Federal Register →Airworthiness Directives; Turbomeca Arriel 1B, 1D, 1D1, and 1S1 Turboshaft Engines
The FAA is adopting a new airworthiness directive (AD) for certain Turbomeca Arriel 1B, 1D, 1D1, and 1S1 turboshaft engines. This AD requires initial and repetitive position checks of the gas generator 2nd stage turbine blades on all Turbomeca Arriel 1B, 1D, 1D1, and 1S1 turboshaft engines, and initial and repetitive replacements of 2nd stage turbines on 1B…
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Oct 26, 2005
Federal Register →Airworthiness Directives; Sikorsky Aircraft Corporation Model S-76A, B, and C Helicopters
This amendment adopts a new airworthiness directive (AD) for the Sikorsky Aircraft Corporation (Sikorsky) Model S-76A, B, and C helicopters. This action requires certain inspections of the main rotor lower bifilar arm assembly in the attachment area around the lower bifilar lugs for a crack. If a crack is found on any bifilar lug, this AD requires replacing…
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.