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SIKORSKY S-76A

19 registered · 1980–1985 · 1 NTSB events · 50 ADs

About this data

Rotorcraft · ALLISON 250-C30 SER · as of Sep 21, 2026

Resources Engine · Rolls-Royce M250 (Allison) ↗ Search FAA TCDS ↗

Distribution · currently registered

By state (top 10)

  • LA 36.8% 7
  • CA 15.8% 3
  • NE 15.8% 3
  • CT 10.5% 2
  • UT 10.5% 2
  • TX 5.3% 1
  • VT 5.3% 1

By decade of manufacture

  • 1980s 47.4% 9
  • Unknown 52.6% 10

NTSB records

1 event(s) on file. Showing the most recent 1.

Airworthiness directives

50 directive(s) on file. Showing the most recent 25 · 25 more in the 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 rep…

  • 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 s…

  • Jun 22, 2023

    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 cert…

  • 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, revisi…

  • 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)…

  • Feb 22, 2021

    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) SR09…

  • 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) fo…

  • 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 actio…

  • Nov 28, 2017

    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…

  • 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…

  • Jun 5, 2017

    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…

  • Jan 5, 2016

    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 repor…

  • Oct 26, 2015

    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 th…

  • Feb 25, 2015

    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 fu…

  • Jun 2, 2014

    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. Thi…

  • Apr 28, 2014

    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…

  • Nov 8, 2013

    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…

  • Jul 23, 2013

    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…

  • 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 insp…

  • Jun 20, 2013

    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…

  • Aug 17, 2012

    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…

  • Oct 26, 2011

    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…

  • Mar 4, 2011

    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 s…

  • Mar 1, 2011

    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…

  • Dec 28, 2010

    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 "…

Type certificate data sheets · 1 match in the FAA catalog

  • H1NE Sikorsky Aircraft Corporation Historical Rev 20 · 12/20/2005

    Models: S-76B, S-76C, S-76A, S-76D

Supplemental type certificates · 621 on file

+ 591 more STCs on file

PMA replacement parts · 60+ on file

+ 20 more PMA parts on file

Registered N-numbers · 19

19 of 19 ● NTSB events on file · orange tails have Atlas pages · Look up queries the live FAA registry (owner, address, last airworthiness)
N-number St Year NTSB FAA
N276TC CA 1980 · Look up ↗
N282S LA 1985 · Look up ↗
N5294A LA — · Look up ↗
N5415X CT 1981 · Look up ↗
N576VP CA 1980 · Look up ↗
N60609 NE — · Look up ↗
N6061C NE — · Look up ↗
N644LH UT — · Look up ↗
N7266K TX 1985 · Look up ↗
N761MH VT 1981 · Look up ↗
N762MH LA — · Look up ↗
N763MH LA — · Look up ↗
N765MH LA 1983 · Look up ↗
N768AL CT — · Look up ↗
N768MH LA 1981 · Look up ↗
N769MH LA — · Look up ↗
N8063R NE — ● Look up ↗
N80EX CA — · Look up ↗
N90EV UT 1984 · Look up ↗

Source — FAA Aircraft Registry

Sources