15% of all helicopters are out of service in the fleet on average it seems.
Shortage of parts or engineering support for such a low ready number?
[QUOTE]UK MoD reveals list of aircraft 'fit for purpose'
According to Ministry of Defence (MoD) figures provided to parliament on 5 and 9 January, some 281 of the UK armed forces' 329 helicopters and 44 out of 56 transport aircraft were 'fit for purpose' on average at any time during November 2006. The figures for UK Royal Air Force (RAF), Royal Navy (RN) and British Army Air Corps (AAC) helicopters reflect the condition of those in service as of 18 December 2006 and
the figures for transport aircraft reflect the condition of those planned to be in service in March 2007.Aircraft are declared fit for purpose by the MoD if they are available to accept operational taskings and deployment
[Jane's Defence Weekly - first posted to
http://jdw.janes.com - 19 January 2007][/QUOTE
Why did the report deal with "planned" serviceable aircraft and not "actual" readiness I wonder?