Measures included focussing on the Categories for Acceptance for the Initial issue of a Permit to Fly for ex-military aircraft (under Air Display Review action number 24: ‘A review of the criteria and requirements for the acceptance of ex-military aircraft on the civil register’).
The CAA also reviewed the Regulatory Framework with the intent of ensuring the validity of a Permit to Fly in both issue and continuing airworthiness (under AAIB Recommendation 2015-047).
This entailed conducting a review in conjunction with the requirements set out in CAP 632. Specifically, a review of the requirements for operational oversight as detailed in CAP 632 ‘Operation of 'Permit-to-Fly' ex-military aircraft on the UK register’ and working with the ex-military aircraft community in formulating the outcomes of this work.
The CAA concludes that as a result of the review, the following measures have been implemented: A new industry guidance document, CAP1640 ‘Ex-Military Aircraft Design, Restoration and Continuing Airworthiness Approval’ has been published.
The oversight of ex-military A8-25 CAMO organisations (as detailed in response to AAIB Safety Recommendation 2015-047) has been enhanced.
A comprehensive revision to CAP 632 was published by the CAA in May 2018, also a programme of actions within the CAA to integrate the operational and airworthiness elements of the oversight of CAP 632. The CAA says that organisations have been identified. Measures include the adoption of a ‘team’ approach to approval and oversight by identifying the responsible CAMO/Maintenance Organisation / Airworthiness Surveyor for each CAP 632 approval and scheduling joint/sequenced audits in accordance with a defined internal procedure.
The introduction of a new CAA airworthiness checklist is to be used during the application and oversight of CAP 632 Approvals. Plus the CAA has introduced a template contract, based on EASA (Part M) regulations, to define the responsibilities and interrelationship of the Operator and CAMO/maintenance organisation.
Following this detailed and thorough post incident investigation, the CAA says it now considers work to address Safety Recommendation 2017-007 is completed.
The CAA Status on the investigation has now been formally closed.
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