List of modifications

Helicopters / Sikorsky / S 61N

MAP004 - Polycon installation

MAP004 - Polycon installation

Installation of Axnes Polycon wireless communication system to assist with intercommunication among required crew members and external occupants during human external cargo operations.

The modification includes (customer documents):

  • Engineering order
  • Installation drawings
  • Instructions for Continued Airworthiness
  • Flight Manual Supplement

To request development and/or EASA approval of a modification or repair, please contact us.

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EASA Design Organisation approval

Certified design

MAP 21 achieved an EASA Part 21 Subpart J Design Organisation Approval in 2007, EASA.21J.326, which enables us to approve modifications to the aviation industry as a delegated EASA authority.