Dear K Sagun,
According to maintenance manual concerning provision of spar part management,please consider as below excel file attached the list of ECH spar part need to be provided provision for year 2015 or not?
If it is necessary to reserve,please let us know your figure for booking by the mid of December 2014.
Any question,please let me know and thank you for your feedback within November 25,2015 to close this transaction in November hard closing.