Proposed Certification Memorandum CM-21.A-A-003 on Analysis of occurrence reports and determination of possible unsafe conditions originated by human performance issues on large aeroplanes

Official comments to the proposed Consultation Paper are to be filed through the EASA Comment Response Tool.

This proposed Certification Memorandum provides guidance to large aeroplanes Design Approval Holders (DAH) for analysing collected reports of and information related to in-service occurrences involving human interventions which has resulted or may result in unsafe conditions.

It aims to complement the limited guidance currently existing in GM1 21.A.3B(b) for establishing if a condition originated by human interventions on a large aeroplane is unsafe.

In addition, EASA plans to publish a Safety Information Bulletin (SIB) which is currently being drafted to remind commercial air transport operators of large aeroplanes of the obligation, under Commission Regulation (EU) 965/2012, to also report to DAH in-service occurrences involving human interventions.