EASA Regulations for Sikorsky S-76D

3 airworthiness directives and regulations affecting Sikorsky S-76D.

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New ADs and bulletins for Sikorsky S-76D, summarized like the ones below, every Monday.

EASA AD US-2022-03-09

Mar 14, 2022

Navigation - Global Positioning System Receiver - Replacement

The Federal Register document titled "Navigation - Global Positioning System Receiver - Replacement" is a final rule airworthiness directive (AD) issued by the FAA affecting Sikorsky Aircraft Corporation Model S-76D helicopters equipped with Thales GPS TopStar 200 LPV receivers, part number C17149HA01. The AD addresses erroneous position outputs from these GPS receivers under certain conditions, which could compromise flight safety. It mandates replacement of the affected GPS receivers to ensure continued safe operation of the helicopters.

Airworthiness Directive
  • Sikorsky S-76
  • Sikorsky S-76D

EASA AD 2019-0004

Jan 17, 2019

[Correction] THALES AVS FRANCE SAS - Global Navigation Satellite System — Operational Limitations

EASA Airworthiness Directive 2019-0004 is a correction issued by the European Union Aviation Safety Agency concerning operational limitations of the Thales AVS France SAS Topstar 200 LPV GPS/SBAS receivers. This directive applies to certain ATR 42-500 and ATR 72-212A aeroplanes, as well as Sikorsky S-76D helicopters equipped with these receivers. It addresses potential erroneous GPS position outputs that could affect navigation safety during LPV and RNP-AR operations.

Airworthiness Directive
  • ATR 42-500
  • ATR 72-212A
  • Sikorsky S-76D

EASA AD US-2017-19-01

Dec 15, 2017

Rotorcraft Flight Control - Main Rotor (M/R) Servo Pushrod Assembly - Inspection

Federal Register Volume 82, Number 227, Airworthiness Directive 2017-19-01 is a final rule issued by the FAA addressing Sikorsky Aircraft Corporation Model S-76A, S-76B, S-76C, and S-76D helicopters. It mandates inspection and marking of the main rotor servo pushrod assemblies with specific part numbers to prevent failure. The directive aims to enhance flight safety by addressing a critical component failure risk.

Airworthiness Directive
  • Sikorsky S-76
  • Sikorsky S-76A
  • Sikorsky S-76B
  • Sikorsky S-76C
  • Sikorsky S-76D