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PQ 4.131 (OPS)

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Article Information
Category: USOAP USOAP
Content source: ICAO ICAO
Content control: EUROCONTROL EUROCONTROL

Operations (OPS)

Protocol question

PQ 4.131 (OPS) - Does the State require that its operators maintain up-to-date and sufficient documentation concerning flight data recorder (FDR) parameter allocation, conversion equations, periodic calibration and other serviceability/maintenance information and ensure their availability to accident investigation authorities?

Guidance for review of protocol question

  • Verify regulations
  • Cross-check ICAO Annex 6 compliance checklist

ICAO Reference Documents

Annex Standard:

  • Annex 6, Part I - 6.3.10 Flight recorders - construction and installation


  • Annex 6, Part I - Flight recorders — operation - 6.3.11.2


  • Annex 6, Part I - 11.6 - Flight recorder records


ICAO document guidance material:

  • Annex 6, Part I, 1.3 ATTACHMENT D. FLIGHT RECORDERS - 1.3.4




Critical Element: Operating Regulations (2)

PQ Lack of Effective Implementation (LEI): 34.93%


ICAO Representative Protocol Questions (PQs): Full List